JP2007084263A - Belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a belt which can restrain abrasion deterioration and can be manufactured at low cost. <P>SOLUTION: The belt is formed with its side face movable while contacting a rolling preventing guide part and has a plurality of teeth. It comprises a belt body 100 most part of which is formed of a flexible resin material, and a mounting member 200 formed detachable from the belt body 100 and having the teeth. The side face of the mounting member 200 is a contact face which contacts the guide part, and at least the surfaces of the teeth and the surface of the contact face out of structural parts of the mounting member 200 are formed of raw materials superior in abrasion resistance to the resin material for most part of the belt body 100. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a belt having a plurality of teeth such as a toothed belt and a caterpillar (crawler belt) of a robot.

  BACKGROUND ART A toothed belt made of an elastic plastic having flexibility such as polyurethane is known as a belt for conveyance or vehicle travel. The toothed belt is configured as an endless belt, for example, and is used in a state of being incorporated in a pair of pulleys. A plurality of teeth that mesh with the teeth of the pulley are provided on one surface of both surfaces of the toothed belt, and the toothed belt is driven by the rotation of the pulley. Further, the toothed belt is generally prevented from rolling by moving both side surfaces of the toothed belt in contact with a flange provided on the pulley or a guide rail provided between the pair of pulleys.

  In such a toothed belt, teeth meshing with the pulley and both side surfaces sliding on the flange and the guide rail are consumed due to sliding wear. Therefore, abrasion resistance is required as a material for the toothed belt. However, since the toothed belt is bent in the process of meshing with the teeth of the pulley, it is required to be flexible. It is difficult to select a material that satisfies both the wear resistance and flexibility, and there is a problem that the range of material selection is narrow. In addition, when the sliding wear progresses over a certain level, the entire toothed belt has to be replaced, which causes a cost problem.

  In addition, when a magnet is provided on the surface of the toothed belt opposite to the surface on which the teeth are provided, the object to be conveyed is fixed by magnetic attraction when used as a conveyor belt, or used as a vehicle running belt. Further, there is also known a technique in which a toothed belt itself is magnetically attracted to a traveling path made of a magnetic material. In the case of such a toothed belt, the magnet or the member holding the magnet is subjected to a load or slides and is consumed. Therefore, even when these are deteriorated or broken, the entire toothed belt must be replaced, and there is a problem in cost as in the above case.

  Not only the toothed belt but also a caterpillar (crawler belt) for moving the robot and the vehicle has the same configuration and has the same problem.

As a related technique, there is one disclosed in Patent Document 1.
Japanese Patent No. 3567725

  An object of the present invention is to provide a belt capable of suppressing deterioration due to wear and reducing costs.

  The present invention employs the following means in order to solve the above problems.

That is, the present invention
A belt having a plurality of teeth, the side surface of which is configured to be movable while being in contact with the guide unit for preventing rolling,
A belt main body made of a resin material having a majority (here, in addition to the case of a part excluding a part of the whole, including the whole case);
A mounting member configured to be detachable from the belt body and having the teeth;
With
The side surface of the mounting member becomes a contact surface that contacts the guide portion,
And at least the surface portion of the tooth and the surface portion of the contact surface among the constituent parts of the mounting member are made of a material having higher wear resistance than the resin material constituting the majority of the belt body. It is characterized by.

  According to the present invention, since the tooth surface that is easily consumed by wear and the surface portion of the surface that contacts the guide portion are made of the material having excellent wear resistance, deterioration due to wear can be suppressed. In addition, since the belt body that requires flexibility and the component (mounting member) that includes the part that requires wear resistance are configured separately, different materials can be selected, and the range of material selection is wide. spread. Furthermore, when a portion that contacts the teeth or the guide is deteriorated due to wear or the like, only the mounting member needs to be replaced, so that the cost can be reduced.

The present invention also provides:
A belt having a plurality of teeth, the side surface of which is configured to be movable while being in contact with the guide unit for preventing rolling,
A belt main body made of a resin material having a majority (here, in addition to the case of a part excluding a part of the whole, including the whole case);
A mounting member configured to be detachable from the belt body and having the teeth;
With
A rolling element that rolls on the surface of the guide portion is provided on the side surface of the mounting member, and
Of the constituent parts of the mounting member, at least the surface part of the teeth is made of a material having higher wear resistance than the resin material constituting the majority of the belt body.

  According to the present invention, since the tooth surface portion that is easily consumed by wear is formed of the material having excellent wear resistance, deterioration due to wear can be suppressed. Moreover, since the part which contacts a guide part is comprised by the rolling element which rolls the guide part surface, the friction by sliding does not arise (or it can suppress), and deterioration by wear can be prevented (or suppressed). . In addition, since the belt body that requires flexibility and the component (mounting member) that includes the part that requires wear resistance are configured separately, different materials can be selected, and the range of material selection is wide. spread. Further, when the teeth and rolling elements are deteriorated due to wear or the like, only the mounting member needs to be replaced, so that the cost can be reduced.

  One tooth may be provided for one mounting member.

  By doing so, even if it is necessary to replace the mounting member due to wear or the like, the portion to be replaced can be reduced. Moreover, since only one mounting member is sufficient for one tooth, even if the rigidity of the mounting member is high, it is possible to prevent the flexibility of the belt body from being hindered.

  The mounting member may be provided with a magnet on the surface opposite to the surface on which the teeth are provided.

  In this case as well, when the magnet is deteriorated or broken, only the mounting member needs to be replaced.

  The mounting member may be made of a resin material in which a metal reinforcing member is embedded.

  In this way, it is possible to achieve both strength and weight reduction of the mounting member.

The belt body is made of a resin material in which a plurality of metal core wires are embedded,
The core wire may be partially exposed from the resin material, and the exposed portion of the core wire may be covered with the mounting member.

  Thereby, the deterioration of the core wire can be suppressed, and no additional parts or the like are required to cover the portion where the core wire is exposed.

  In addition, said each structure can be employ | adopted combining as much as possible.

  As described above, according to the present invention, a belt member that is required to be flexible is mounted with a mounting member made of a material with high wear resistance at a portion that is easily worn. Can be suppressed. Further, when wear deterioration or the like occurs, it is only necessary to replace the mounting member, so that the cost can be reduced.

  The best mode for carrying out the present invention will be exemplarily described in detail below with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified. .

  With reference to FIGS. 1-15, the toothed belt which concerns on Example 1 of this invention is demonstrated.

<Use example of toothed belt>
In particular, an example of use of the toothed belt according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic view of a toothed belt according to Example 1 of the present invention as seen from the side surface showing a use state. FIG. 2 is a schematic view seen from the front side showing a use state of the toothed belt according to the first embodiment of the present invention.

  The toothed belt 10 according to the present embodiment is suitably used as an endless belt as illustrated. The endless toothed belt 10 is used in a state of being incorporated in a pair of pulleys 20. A plurality of teeth are provided on the inner surface side of the endless toothed belt 10, and these teeth mesh with the teeth of the pulley 20, whereby the toothed belt 10 is rotated with the rotation of the pulley 20. Is driven. That is, as shown in FIG. 1, when the pulley 20 rotates in the direction of the arrow in the figure, the toothed belt 10 also rotates in the same direction. In the case of a general apparatus, one of the pair of pulleys 20 is directly rotated by receiving a rotational driving force, and the other is driven as the toothed belt 10 rotates.

  When the toothed belt 10 is used as a transport belt, a transport target 30 is placed on the belt as shown in FIG. 1, and the transport target 30 is rotated with the rotation of the toothed belt 10. Be transported. When the toothed belt 10 is used for vehicle travel, for example, a magnet is provided on the outer surface side of the toothed belt 10 provided on the vehicle side, and this magnet is attracted to a travel path made of a magnetic material. As the toothed belt 10 rotates, the vehicle can be moved along the traveling path.

Here, as is apparent from FIG. 1, the toothed belt 10 has a linear shape between the pair of pulleys 20, whereas the toothed belt 10 is curved along the pulley 20 at a portion engaging with the pulley 20.
Therefore, the toothed belt 10 must be flexible.

  Further, the toothed belt 10 is configured such that its side surface moves while being in contact with the guide unit for preventing rolling so as to prevent rolling (meandering) during driving. For example, as shown in FIG. 2, by providing flanges 21 on both sides of the pulley 20, movement of the toothed belt 10 in the lateral direction (width direction) is restricted. Normally, a slight gap is provided between the side surface of the toothed belt 10 and the flange 21, and only when the toothed belt 10 moves in the lateral direction, the one side surface of the toothed belt 10 and the flange 21. Is configured to slide. In addition, as shown in FIG. 2, the flange 21 is usually provided on both sides of the toothed belt 10, but the toothed belt 10 has a characteristic of moving only in one lateral direction. For this, a flange may be provided only on one side. Further, in the present embodiment, the case of the flange 21 provided on the pulley 20 as a guide for preventing the toothed belt 10 from rolling is shown, but the toothed belt 10 is provided in a linear portion between the pair of pulleys 20. A guide rail may be provided for restricting the lateral movement of the guide rail. Of course, it goes without saying that both the flange 21 of the pulley 20 and the guide rail can be used together, or only one of them can be used.

<Overall configuration of toothed belt>
In particular, the overall configuration of the toothed belt 10 according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a part of a plan view of the toothed belt according to the first embodiment of the present invention. When the toothed belt is used as an endless belt, FIG. 3 corresponds to a diagram on the outer surface side thereof. FIG. 4 is a part of a side view of the toothed belt according to the first embodiment of the present invention. FIG. 5 is a part of a bottom view of the toothed belt according to the first embodiment of the present invention. When the toothed belt is used as an endless belt, FIG. 5 corresponds to the inner side view. 6 is a cross-sectional view taken along AA in FIG. 7 is a cross-sectional view taken along the line BB in FIG.

  In the following description, the surface on the side where the teeth of the toothed belt are provided (the bottom side shown in FIG. 5) is referred to as the tooth surface, and the surface on the opposite side (the plane side shown in FIG. 3) is referred to as the back surface.

  The toothed belt 10 according to the first embodiment of the present invention includes a belt main body 100 and a mounting member 200 configured to be detachable from the belt main body 100. Most of the belt body 100 is made of a resin material having flexibility. A plurality of attachment members 200 are attached to the belt body 100. Each attachment member 200 is attached to the belt main body 100 with a certain gap. Therefore, the mounting member 200 itself has high rigidity and does not have flexibility. However, since the belt main body 100 can be bent at the gap portion, the entire toothed belt 10 has flexibility.

  The mounting member 200 includes a first part 210 provided on the tooth surface side and a second part 220 provided on the back surface side. The width of the mounting member 200 is wider than the width of the belt main body 100, and both ends of the mounting member 200 protrude outward from both side surfaces of the belt main body 100. The first part 210 and the second part 220 are fixed by bolts 231 and nuts 232 at the protruding portions on both sides. In the present embodiment, an example in which the first part 210 and the second part 220 are fixed by screw fastening with a bolt 231 and a nut 232 is shown, but if a female thread is formed on one part, only the bolt 231 is shown. It goes without saying that both can be fixed.

<Belt body>
In particular, the belt main body will be described in detail with reference to FIGS. FIG. 8 is a part of a plan view of the belt main body according to the first embodiment of the present invention. FIG. 9 is a part of a side view of the belt main body according to the first embodiment of the present invention. FIG. 10 is a part of a bottom view of the toothed belt according to the first embodiment of the present invention. In addition, about sectional drawing of the belt main body 100, it is as having shown in FIG.6 and FIG.7.

  The belt main body 100 is a molded article made of a thermoplastic elastic plastic having flexibility (for example, polyurethane), and has a configuration in which a plurality of metal cores (wires) W are embedded therein. In FIGS. 8 and 10, the core W provided inside is indicated by a dotted line. A plurality of convex portions 101 are integrally provided on the tooth surface side of the belt main body 100. The convex portions 101 are provided over the entire belt body 100 at regular intervals, with two as a set.

<Mounting member>
In particular, the mounting member will be described in detail with reference to FIGS. FIG. 11 is a plan view of the first part constituting the mounting member according to the first embodiment of the present invention. FIG. 12 is a bottom view of the first part constituting the mounting member according to the first embodiment of the present invention. FIG. 13 is a plan view of the second part constituting the mounting member according to the first embodiment of the present invention. FIG. 14 is a front view of the second part constituting the mounting member according to the first embodiment of the present invention. FIG. 15 is a bottom view of the second part constituting the mounting member according to the first embodiment of the present invention. In addition, about the side view and sectional drawing of the 1st part 210 and the 2nd part 220, it is as having shown in FIG.4, FIG.6 and FIG.7.

  The first part 210 is a member having a shape obtained by cutting a cylinder vertically in half along the central axis, and is a member constituting the teeth of the toothed belt 10. The first part 210 is provided with a pair of recesses 211 extending in the longitudinal direction (corresponding to the width direction of the belt main body 100) on the upper surface side thereof. The pair of concave portions 211 is configured to fit into the convex portions 101 provided in the belt main body 100 as a set. 4 and 6 show how these are fitted.

  In addition, through holes 212 through which the bolts 231 are inserted are provided near both ends of the first part 210. If a female screw is formed on the inner peripheral surface of the through-hole 212, the nut 232 is unnecessary as described above.

  The second part 220 is a member having a rectangular parallelepiped shape and a groove 221 having a rectangular cross section. Through holes 222 through which the bolts 231 are inserted are also provided near both ends of the second part 220. In addition, even when the internal thread is formed on the inner peripheral surface of the through hole 222, it is needless to say that the nut 232 is unnecessary if the bolt 231 is inserted from the tooth surface side unlike the case shown in FIG. .

  Further, the first part 210 and the second part 220 are made of a material excellent in wear resistance (at least, it is more excellent in wear resistance than the resin material of the belt main body 100). Specific examples of the material include resins and metals such as urethane and nylon having excellent wear resistance.

  The mounting member 200 configured as described above is mounted on the belt main body 100 so that the first part 210 is on the tooth surface side and the second part 220 is on the rear surface side, and the belt main body 100 is sandwiched therebetween. . At this time, the belt main body 100 is in a state in which a cross section formed by the groove 221 formed in the second part 220 and the upper surface of the first part 210 is inserted into a substantially rectangular through hole. Further, as described above, the convex portion 101 provided in the belt main body 100 and the concave portion 211 provided in the first part 210 are fitted. In this way, the mounting member 200 is positioned with respect to the belt main body 100.

When the mounting member 200 is positioned with respect to the belt body 100, the through hole 212 provided in the first part 210 and the through hole 222 provided in the second part 220 communicate with each other to form a pair of through holes. The Bolts 231 are respectively passed through the pair of through holes, and nuts 23
The first part 210 and the second part 220 are fixed by being screwed into a screw because it is formed in the inner periphery of the through hole of two or any part. As described above, the mounting member 200 is positioned and fixed to the belt main body 100. Further, the mounting member 200 can be easily detached from the belt body 100 simply by removing the bolts 231.

<Excellent points of this embodiment>
According to this embodiment, the mounting member 200 protrudes outward from both side surfaces of the belt main body 100. Therefore, both side surfaces of the mounting member 200 become contact surfaces that come into contact with a guide unit for preventing rolling such as the flange 21 of the pulley 20. The mounting member 200 also has teeth that mesh with the teeth of the pulley. In this way, the portion that is easily consumed due to sliding wear or the like is provided on the mounting member 200 made of a material having higher wear resistance than the belt main body 100. Therefore, according to the present embodiment, deterioration due to wear can be suppressed.

  In addition, since the belt main body 100 that requires flexibility and the component (the mounting member 200) that includes a portion that requires wear resistance are configured separately, different materials can be selected. The width expands. Furthermore, when the contact surface that contacts the guide unit for preventing rolls or the teeth that mesh with the teeth of the pulley are worn out due to wear or the like, only the mounting member 200 needs to be replaced, thus reducing the cost. Can do.

  Further, according to this embodiment, since one tooth (corresponding to the first part 210) is provided for one mounting member 200, replacement of consumable parts can be minimized. As a result, costs can be reduced. Further, even if the mounting member 200 has high rigidity and does not have flexibility, the belt body 100 can be bent by the gap between the adjacent mounting members 200, thereby preventing the bending property of the toothed belt 10 itself. Nor.

<Others>
In the present embodiment, the high-strength belt main body 100 having a plurality of core wires W therein has been described as an example. However, even in the case of a belt main body composed only of a resin material such as elastic plastic, The configuration shown in the embodiment can be applied.

  As described above, a material having excellent wear resistance is used as the material of the first part 210 and the second part 220 constituting the mounting member 200. However, the portion (the tooth surface is required to have wear resistance). A material having excellent wear resistance may be used only for the surface layer portion (the surface layer portion of the arc surface of the first part 210) and the surface layer portions on both sides of the second part 220.

  In the present embodiment, the toothed belt used for conveyance and vehicle traveling has been described as an example. However, the present invention is not limited to this, and a toothed belt for other uses, or a caterpillar for moving a robot or a vehicle. The configuration shown in this embodiment can also be applied to the (crawler belt).

  FIG. 16 shows a second embodiment of the present invention. In the present embodiment, a modification of the mounting member in the first embodiment will be described. Since other basic configurations and operations are the same as those in the first embodiment, only differences in configuration will be described.

  FIG. 16 is a sectional view of the toothed belt according to the second embodiment of the present invention. This sectional view corresponds to the BB sectional view of FIG. 3 described in the first embodiment.

In the first embodiment, the case where the groove 221 having a rectangular cross section is formed in the second part 220 has been described. On the other hand, in the toothed belt 10a according to the present embodiment, a groove 211a having a rectangular cross section is provided in the first part 210a, and no groove is provided in the second part 220a. Even in such a configuration, the belt main body 100 is inserted through the substantially rectangular through-hole formed in the cross-section formed by the groove 211a formed in the first part 210a and the lower surface of the first part 210a. 200 is positioned and fixed with respect to the belt main body 100.

  Needless to say, the present embodiment configured as described above can achieve the same effects as those of the first embodiment.

  FIG. 17 shows a third embodiment of the present invention. In the present embodiment, a modification of the mounting member in the first embodiment will be described. Since other basic configurations and operations are the same as those in the first embodiment, only differences in configuration will be described.

  FIG. 17 is a sectional view of a toothed belt according to Example 3 of the present invention. This sectional view corresponds to the BB sectional view of FIG. 3 described in the first embodiment.

  In the said Example 1, 2, the structure in case a mounting member consists of two types of parts was demonstrated. In contrast, in the present embodiment, a configuration in the case where the mounting member is composed of three types of parts will be described.

  The mounting member in the toothed belt 10b according to the present embodiment includes the first part 210 shown in the first embodiment and the second part 220a shown in the second embodiment, and further has a plate-like third part 240. Are provided. That is, when the first part 210 and the second part 220a that are not provided with a groove having a rectangular cross section are used, a space is formed on both sides of the belt main body 100. A third part 240 is provided.

  Needless to say, the third part 240 is also formed with a through hole 241 for inserting a bolt. Further, the third part 240 may be fixed to either the first part 210 or the second part 220a in advance by welding or the like.

  Needless to say, the present embodiment configured as described above can achieve the same effects as those of the first embodiment.

  FIG. 18 shows a fourth embodiment of the present invention. In the present embodiment, a modification of the mounting member in the first embodiment will be described. Since other basic configurations and operations are the same as those in the first embodiment, only differences in configuration will be described.

  FIG. 18 is a sectional view of a toothed belt according to Example 4 of the present invention. This sectional view corresponds to the BB sectional view of FIG. 3 described in the first embodiment.

  The mounting member in the toothed belt 10c according to the present embodiment is a configuration using a roller 250 as a rolling element instead of the third part 240 in the configuration of the mounting member shown in the third embodiment. That is, in this embodiment, the roller 250 is configured to be rotatable around the bolt 231a, and the roller 250 is configured to roll on the surface of the guide portion for preventing rolling such as the flange 21 of the pulley 20. . In addition, it is necessary to use the bolt 231a used in the present embodiment in which a male screw is not provided at least in a portion where the inner peripheral surface of the roller 250 can slide so as not to prevent the rotation of the roller 250.

In the case of the present embodiment configured as described above, the same effect as in the case of the first embodiment can be obtained, and the portion that contacts the guide portion is configured by a roller that rolls on the surface of the guide portion. Therefore, friction due to sliding does not occur (or can be remarkably suppressed), and deterioration due to wear can be prevented (or remarkably suppressed). In addition, as long as it rolls the guide part surface, you may use not only a roller but another rolling element (sphere etc.).

  FIG. 19 shows a fifth embodiment of the present invention. In the present embodiment, a modification of the mounting member in the first embodiment will be described. Since other basic configurations and operations are the same as those in the first embodiment, only differences in configuration will be described.

  FIG. 19 is a sectional view of a toothed belt according to the fifth embodiment of the present invention. This sectional view corresponds to the BB sectional view of FIG. 3 described in the first embodiment.

  As described above, the material of the parts constituting the mounting member is excellent in wear resistance, as described above. Specifically, for example, when strength is given priority, only metal is used. It is also possible to use only resin when weight reduction is prioritized. In the present embodiment, in order to take advantage of both, a configuration in the case where these two kinds of materials are used will be described.

  The mounting member in the toothed belt 10d according to the present embodiment includes a first part 210b and a second part 220b having the same shape as the first embodiment.

  The first part 210b according to the present embodiment is formed of a resin material formed by embedding a pair of metal and cylindrical first reinforcing members 261 and a flat plate-like second reinforcing member 262 therein. Is the body. The first reinforcing member 261 has a cylindrical inner portion used as a bolt insertion hole. By providing the first reinforcing member 261, it is possible to obtain sufficient strength that can withstand a load caused by bolt fastening. The second reinforcing member 262 is disposed inside the first part 210b so as to occupy substantially the entire range when the first part 210b is viewed from the upper surface or the lower surface. Thereby, the intensity | strength of the 1st part 210b whole is raised. The second reinforcing member 262 includes a resin material portion on both sides of the second reinforcing member 262 in order to enhance the adhesiveness between the pair of through holes 262a through which the first reinforcing member 261 is inserted and the resin material. A pair of through-holes 262b are formed for communicating the two.

  Similarly, the second part 220b is a molded body made of a resin material molded so as to embed a pair of metallic and cylindrical first reinforcing members 263 and a flat plate-like second reinforcing member 264 therein. . The first reinforcing member 263 has a cylindrical inner portion used as a bolt insertion hole. By providing the first reinforcing member 263, it is possible to obtain a sufficient strength that can withstand a load caused by bolt fastening. The second reinforcing member 264 is disposed inside the second part 220b so as to occupy substantially the entire range when the second part 220b is viewed from the upper surface or the lower surface. Thereby, the intensity | strength of the 2nd part 220b whole is raised. The second reinforcing member 264 has a resin material portion on both sides of the second reinforcing member 264 in order to improve the adhesiveness between the pair of through holes 264a for inserting the first reinforcing member 263 and the resin material. A pair of through-holes 264b are formed for communicating the two.

  Also in the case of the present embodiment configured as described above, the same effect as in the case of the first embodiment can be obtained, and furthermore, both the strength and weight reduction of the mounting member can be achieved.

  FIG. 20 shows a sixth embodiment of the present invention. In the present embodiment, a modification of the mounting member in the first embodiment will be described. Since other basic configurations and operations are the same as those in the first embodiment, only differences in configuration will be described.

  FIG. 20 is a sectional view of a toothed belt according to Example 6 of the present invention. This sectional view corresponds to the BB sectional view of FIG. 3 described in the first embodiment.

  A groove 221c is formed on the back side of the second part 220c constituting the mounting member of the toothed belt 10e according to the present embodiment. A magnet 270 is fitted in the groove 221c. Thereby, as demonstrated in Example 1, a conveyance target object can be fixed to the toothed belt 10e by magnetic attraction, or the toothed belt 10e itself can be adsorbed to a traveling path made of a magnetic material.

  Needless to say, the present embodiment configured as described above can achieve the same effects as those of the first embodiment. In this embodiment, the magnet 270 and the second part 220c holding the magnet 270 may be deteriorated or damaged, but even in that case, only the mounting member or only the second part 220c can be replaced. , Can reduce costs.

  21 and 22 show a seventh embodiment of the present invention. In the present embodiment, a further specific example in the first embodiment will be described. In addition, about the structure same as Example 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably. FIG. 21 is a part of a side view of the toothed belt according to the seventh embodiment of the present invention. FIG. 22 is a part of a bottom view of the toothed belt according to the seventh embodiment of the present invention. In FIG. 22, a part of the mounting member 200 (upper part in the drawing) is shown broken.

  The belt body 100 having a plurality of core wires W and having a plurality of tooth-shaped convex portions described in the first embodiment is manufactured by, for example, a manufacturing method disclosed in Japanese Patent Publication No. Sho 62-015350. It can manufacture suitably. In the manufacturing method disclosed in this publication, a plurality of core wires W are wound around a gear, and a toothed belt is formed by discharging a resin material to a tooth portion of the gear while feeding the core wire W by rotation of the gear. Is. Although the belt body 100 can be preferably manufactured by this manufacturing method, when this manufacturing method is used, a portion of the core wire W corresponding to the contact portion between the core wire W and the manufacturing gear is exposed from the resin material. There is a drawback that it will. 21 and 22, reference numeral 102 denotes an exposed portion of the core wire W. In FIG. 22, the exposed portion of the core wire W is indicated by a solid line, and the portion embedded inside is indicated by a dotted line.

  Since the exposed portion 102 of the core W may be rusted or damaged, generally, other parts are embedded, further molded with a resin material, or painted. It is protected by that.

  However, according to the present embodiment, since the first part 210 constituting the mounting member 200 covers the exposed portion 102 of the core W, another part or the like is required to cover the exposed portion 102. There is nothing.

FIG. 1 is a schematic view of a toothed belt according to Example 1 of the present invention as seen from the side surface showing a use state. FIG. 2 is a schematic view seen from the front side showing a use state of the toothed belt according to the first embodiment of the present invention. FIG. 3 is a part of a plan view of the toothed belt according to the first embodiment of the present invention. FIG. 4 is a part of a side view of the toothed belt according to the first embodiment of the present invention. FIG. 5 is a part of a bottom view of the toothed belt according to the first embodiment of the present invention. 6 is a cross-sectional view taken along AA in FIG. 7 is a cross-sectional view taken along the line BB in FIG. FIG. 8 is a part of a plan view of the belt main body according to the first embodiment of the present invention. FIG. 9 is a part of a side view of the belt main body according to the first embodiment of the present invention. FIG. 10 is a part of a bottom view of the toothed belt according to the first embodiment of the present invention. FIG. 11 is a plan view of the first part constituting the mounting member according to the first embodiment of the present invention. FIG. 12 is a bottom view of the first part constituting the mounting member according to the first embodiment of the present invention. FIG. 13 is a plan view of the second part constituting the mounting member according to the first embodiment of the present invention. FIG. 14 is a front view of the second part constituting the mounting member according to the first embodiment of the present invention. FIG. 15 is a bottom view of the second part constituting the mounting member according to the first embodiment of the present invention. FIG. 16 is a sectional view of the toothed belt according to the second embodiment of the present invention. FIG. 17 is a sectional view of a toothed belt according to Example 3 of the present invention. FIG. 18 is a sectional view of a toothed belt according to Example 4 of the present invention. FIG. 19 is a sectional view of a toothed belt according to the fifth embodiment of the present invention. FIG. 20 is a sectional view of a toothed belt according to Example 6 of the present invention. FIG. 21 is a part of a side view of the toothed belt according to the seventh embodiment of the present invention. FIG. 22 is a part of a bottom view of the toothed belt according to the seventh embodiment of the present invention.

Explanation of symbols

10, 10a, 10b, 10c, 10d, 10e Toothed belt 20 Pulley 21 Flange 30 Conveyed object 100 Belt body 101 Convex part 102 Exposed part 200 Mounting member 210, 210a, 210b First part 211 Concave part 211a Groove 212 Through-hole 220 220a, 220b, 220c Second part 221 Groove 221c Groove 222 Through hole 231, 231a Bolt 232 Nut 240 Third part 241 Through hole 250 Roller 261 First reinforcing member 262 Second reinforcing member 262a Through hole 262b Through hole 263 First Reinforcing member 264 Second reinforcing member 264a Through hole 264b Through hole 270 Magnet W Core wire

Claims (6)

A belt having a plurality of teeth, the side surface of which is configured to be movable while being in contact with the guide unit for preventing rolling,
A belt body composed mostly of a flexible resin material;
A mounting member configured to be detachable from the belt body and having the teeth;
With
The side surface of the mounting member becomes a contact surface that contacts the guide portion,
And at least the surface portion of the tooth and the surface portion of the contact surface among the constituent parts of the mounting member are made of a material having higher wear resistance than the resin material constituting the majority of the belt body. A belt characterized by. A belt having a plurality of teeth, the side surface of which is configured to be movable while being in contact with the guide unit for preventing rolling,
A belt body composed mostly of a flexible resin material;
A mounting member configured to be detachable from the belt body and having the teeth;
With
A rolling element that rolls on the surface of the guide portion is provided on the side surface of the mounting member, and
A belt characterized in that at least a surface portion of the tooth among the constituent parts of the mounting member is made of a material superior in wear resistance to a resin material constituting most of the belt main body.   The belt according to claim 1, wherein one tooth is provided for one mounting member.   The belt according to claim 1, 2, or 3, wherein the mounting member is provided with a magnet on a surface opposite to a surface on which teeth are provided.   The belt according to claim 1, wherein the mounting member is made of a resin material in which a metal reinforcing member is embedded. The belt body is made of a resin material in which a plurality of metal core wires are embedded,
The belt according to claim 1, wherein the core wire is partially exposed from the resin material, and the exposed portion of the core wire is covered with the mounting member.

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