JP2007290632A - Driving structure of endless track - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an endless track structure for making an endless track hard to be separated from a sprocket by preventing torsion of the endless track. <P>SOLUTION: In this driving structure, the endless track is driven by being engaged to the sprocket provided in a travel device. The endless track is formed by a plurality of square constituting parts provided continuously along the length direction and thin portions arranged among the constituting parts. The thin portions are formed to be cut and are formed over the whole of the width direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drive structure of an endless track that is driven by being engaged with a sprocket, and in particular, is used as an endless track of a traveling device used in a robot contest to prevent the occurrence of torsion and to prevent the sprocket from coming off. The present invention relates to an orbit drive structure.

In recent years, robot contests that compete between superiority and inferiority in junior high school / high school, technical college, etc., where robots created by each student perform game-to-game battles, stacking boxes and transporting balls Is held.
In the robot contest, various robots are produced by combining the machine parts while each student gives an idea.

  As such a machine part, for example, there is a traveling device configured as a moving means of a robot. In the robot contest, in a battle competition with an opponent robot, there is a stepped part or various obstacles. In many cases, an endless track is used in a robot traveling device.

In order to be able to use the endless track by cutting it to an arbitrary length, a large number of components constituting the endless track are arranged side by side in the length direction, and the endless track is associated with a sprocket provided in the traveling device. In order to drive them together, each of the components is formed with an engagement hole for engagement with a sprocket.
JP 2002-239260 A

The endless track described in Patent Document 1 is formed in each component, and the engagement hole for engagement with the sprocket is provided at only one place in the center in the width direction of the endless track, and the claw provided in the sprocket. Engage with the piece.
In addition, a slit provided along the width direction of the endless track is formed between the constituent portions in the length direction of the endless track, and each component is provided at an intermediate portion in the width direction of the endless track. They are connected to each other only by the thin part. Therefore, the endless track has a problem that the endless track is easily detached from the sprocket because the end portions in the width direction are deformed by opening the slit and the endless track is easily twisted in the width direction.

When the endless track is used for a traveling device, the endless track is formed in a substantially rectangular cross section, and therefore the endless track contacts the traveling surface as a whole on the traveling surface side of the endless track. . Therefore, when the endless track is used as a robot travel device and the robot is traveled, the endless track contacts the travel surface and receives a large frictional resistance. If the friction between the running surface and the endless track becomes large, the endless track is twisted when the robot is turned, etc., and the endless track cannot move away from the sprocket due to the twist. There was a problem of becoming.
In addition, when the endless track is twisted, the slit provided in the width direction of the endless track is opened, so that the endless track is more easily twisted, and the endless track is likely to be detached from the sprocket due to the twist. was there.
Therefore, an object of the present invention is to provide an endless track structure that prevents twisting of the endless track and prevents the endless track from coming off the sprocket.

In order to solve the above-mentioned problems, an endless track drive structure according to the present invention as claimed in claim 1 is an endless track drive structure that is driven by being engaged with a sprocket provided in a traveling device, and is configured as described above. The track is formed by a plurality of square-shaped components provided continuously along the length direction, and a thin portion disposed between the components, and the thin portion is formed so as to be cut. , Characterized by being formed over the entire width direction.
That is, the endless track can be easily bent at the thin-walled portion provided between the components, so that the endless track can be reliably wound and engaged with the sprocket.
In addition, when it is desired to shorten the length of the endless track, it may be cut at the thin-walled portion provided between the components.

Further, in the endless track drive structure according to the second aspect of the present invention, the cross section in the width direction of the component section has a thickness dimension of the central portion in the width direction of the component section on the surface side of the component section. It has a thickness dimension that is thicker than the thickness dimension at both ends in the width direction, and is inclined from the both ends in the width direction of the component toward the center in the width direction.
That is, when the endless track is used as a traveling device, the central portion in the width direction of each component is in contact with the traveling surface, and both end portions in the width direction are not always in contact with the traveling surface and are in a non-contact state. In some cases, the frictional resistance received from the running surface during running is reduced.

Further, in the endless track drive structure according to the third aspect of the present invention, the component is formed wide and sprocket engagement holes that can engage with the sprocket are provided on both sides in the width direction. It is characterized by being.
That is, each of the components is formed wide so that it is difficult to twist. In addition, when driven by being engaged with the sprocket, the force received from the sprocket is prevented from being concentrated at one place and easily twisted, so that the force received from the sprocket is distributed to both sides in the width direction. The sprocket engagement holes that can be engaged with the sprocket are disposed on both sides in the width direction.

Further, the drive structure of the endless track according to the present invention described in claim 4 is formed so that the end portions of the endless track can be connected to each other through connecting members. A connecting hole portion into which the connecting member can be engaged is formed in each of the intermediate portion in the width direction and the both end portions in the width direction of the respective components.
That is, the end portions of the endless track are connected to each other via a connecting member, and in order to prevent twisting at the connecting portion, each of the component parts and the connecting member are arranged in the width direction intermediate portion and the width direction both ends. It is comprised so that it may each be engaged in three places of a part.

Further, in the endless track drive structure according to the fifth aspect of the present invention, each of the components is formed in a planar rectangular shape, and a non-slip is formed in the width direction on a surface portion contacting the installation surface. And a guide projection is formed on each of the outer positions of the sprocket engaging hole in the width direction on the back surface of each component.
That is, when the endless track is used as a traveling device, the convex portion comes into contact with the traveling surface and exhibits an anti-slip effect. Further, when engaged with the sprocket, the guide projection guides both side surfaces of the sprocket, thereby preventing the endless track from being displaced in the width direction with respect to the sprocket.

According to a sixth aspect of the present invention, the endless track driving structure according to the present invention is such that the endless track is formed of a flexible material, and the connecting member is formed of a material having rigidity greater than that of the endless track. It is characterized by being.
That is, the endless track is formed of a flexible material so that it can circulate around the sprocket without hindrance. Further, the connecting member is formed of a material having rigidity so that deformation including torsion is generated and the connecting member is not easily detached from the sprocket.

According to a seventh aspect of the present invention, the endless track driving structure is used as a belt conveyor for transmitting motion.
That is, the endless track according to the present invention can be used not only as a traveling device but also as a motion transmission mechanism.

According to the eighth aspect of the present invention, the endless track drive structure is driven by engaging the sprocket used as a pinion with the endless track being cut to a predetermined length and attached to a reciprocating member. As a result, it is used as a rack that converts rotational motion into linear reciprocating motion.
That is, the endless track according to the present invention can be used not only as a traveling device but also as a motion conversion mechanism.

The drive structure of the endless track according to the first aspect of the present invention is a drive structure of an endless track that is driven by being engaged with a sprocket provided in the traveling device, and the endless track is along the length direction. Are formed by a plurality of square-shaped constituent parts provided continuously and a thin-walled part disposed between the constituent parts, and the thin-walled part is formed so as to be cuttable, and extends over the entire width direction. Since it is formed, between the constituent parts in the thin-walled portion can be cut with a knife or scissors to make the endless track a desired length.
Further, since the thin-walled portion is provided over the entire width direction and there is no slit as described in the above problem, the problem that the slits are opened and the respective constituent portions are easily twisted is solved. Therefore, twisting of the endless track is prevented and it is difficult to come off the sprocket.

  Further, in the endless track drive structure according to the second aspect of the present invention, the widthwise cross section of each of the components is the thickness of the central portion in the width direction of the components on the surface side of the components. Since the thickness dimension is thicker than the thickness dimension at both ends in the width direction, and is inclined from the width direction both ends of the above-mentioned component toward the width direction central portion, When driving and running on the floor, for example, only the central portion in the width direction of each component comes into contact with the floor, so that an increase in friction due to an increase in the contact area with the floor can be suppressed. . Therefore, when turning, the problem that the endless track is twisted due to friction with the floor and disengages from the sprocket can be solved.

  Further, in the endless track drive structure according to the third aspect of the present invention, each of the components is formed wide, and sprocket engagement holes that can be engaged with the sprockets are provided on both sides in the width direction. Therefore, since each component part is engaged with the sprocket at two places on both sides in the width direction, the driving force of the sprocket acts evenly on both sides in the width direction of the endless track, making it difficult to twist. . Therefore, the problem that the endless track is detached from the sprocket due to twisting can be solved.

  Further, the drive structure of the endless track according to the present invention described in claim 4 is formed so that the end portions of the endless track can be connected to each other through connecting members. Since the connection hole part which the said connection member can engage with in the width direction intermediate part and width direction both ends of each said structure part is each formed, the said each structure part and the said connection member are 3 of the width direction. It will be mutually connected in a place and the said connection member becomes difficult to twist. Therefore, it is possible to prevent the endless track from being detached from the sprocket by being twisted at the connecting portion.

Further, in the endless track drive structure according to the fifth aspect of the present invention, each of the components is formed in a planar rectangular shape, and a non-slip is formed in the width direction on a surface portion contacting the installation surface. Convex portions are formed on the back surface of each component, and guide protrusions are formed at both outer positions of the sprocket engagement hole in the width direction. For example, when it comes into contact with the floor or the like, the above-mentioned convex part produces a non-slip effect, and the floor or the like can be gripped reliably.
In addition, when the sprocket is engaged with the sprocket engagement hole from the back side, the guide projection is positioned on the outer side of both sides of the sprocket to prevent displacement in the width direction. It becomes difficult to come off from the hole, and twisting of the endless track is prevented.

Further, in the endless track drive structure according to the present invention, since each component of the endless track is formed of a flexible material, it can be freely deformed so as to be wound around the sprocket. Thus, the sprocket can be reliably engaged.
In addition, since the connecting member is made of a material having rigidity greater than that of the endless track, the connecting member is not easily deformed, and the endless track is prevented from being twisted at the connecting portion. Therefore, the possibility that the endless track is detached from the sprocket at the connecting portion is reduced.

  In addition, the endless track drive structure according to the present invention described in claim 7 constitutes a transmission mechanism in which the endless track is used as a belt conveyor for transmitting motion, and the belt conveyor is unlikely to come off the sprocket. And the usefulness increases.

  According to the eighth aspect of the present invention, the endless track drive structure is driven by engaging the sprocket used as a pinion with the endless track being cut to a predetermined length and attached to a reciprocating member. As a result, it is used as a rack that converts rotational motion into rectilinear reciprocating motion, so that the member can be reliably reciprocated without using a real rack mechanism, and usefulness increases.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the driving structure of the endless track 11 according to the present embodiment is driven by being engaged with a sprocket 15 provided in the traveling device 13. 7 and 8, it is formed by a plurality of square-shaped components 21 provided continuously along the length direction, and thin-walled portions 22 arranged between the components 21. As shown in FIGS. 4 to 6, the thin-walled portion 22 is formed so as to be cut, and is formed over the entire width direction.

  Further, as shown in FIG. 6, the cross section of each component 21 in the width direction is such that the thickness dimension of the central portion A in the width direction of each component 21 is the width direction on the surface side of each component 21. It has a thickness dimension thicker than the thickness dimension of both end portions B, and is inclined from the width direction both end portions B of the component portion 21 toward the width direction central portion A.

  Each component 21 is formed wide, and as shown in FIGS. 4 and 5, sprocket engagement holes 25a and 25b that can engage with the sprocket 15 are provided on both sides in the width direction. Yes.

  7 and 8, the endless track 11 is formed so that end portions in the length direction can be connected to each other via a connecting member 20. As shown in FIG. 5, connection hole portions 24, 23 a, and 23 b that can be engaged with the connection member 20 are formed in the intermediate portion in the width direction and the both end portions in the width direction of each component portion 21.

  Each component 21 is formed in a planar rectangular shape. As shown in FIG. 4, the surface portion 35 is provided with a non-slip convex portion 37b formed along the width direction, and As shown in FIG. 5, guide protrusions 39a and 39b are formed on the outer surface of the sprocket engagement holes 25a and 25b in the width direction on the back surface 36 of each component 21.

  Further, the endless track 11 is formed of a flexible material, and the connecting member 20 is formed of a material having greater rigidity than the endless track.

In another embodiment, the endless track 11 is used as a belt conveyor for transmitting motion as shown in FIG.
Further, in another embodiment, the endless track 11 is attached to a member that is reciprocated by being cut to a predetermined length as shown in FIG. 14, and is engaged with the sprocket 46 used as the pinion 50. Are used as a rack 49 that converts rotational motion into linear reciprocating motion.

FIGS. 1-12 shows the drive structure of the endless track 11 based on Example 1 of this invention.
In the first embodiment, the endless track 11 is used as a traveling belt 12 constituting a traveling device 13 of a traveling robot, as shown in FIG.
The traveling belt 12 is assembled to traveling devices 13 disposed on both the left and right sides of a traveling robot body (not shown).
As shown in FIG. 2, the traveling device 13 has a drive sprocket 15 and a driven wheel 16 disposed at both ends in the length direction of a pair of frame members 14a and 14b arranged in parallel at an appropriate interval. The drive sprocket 15 and the driven wheel 16 are sandwiched between the two frame members 14a and 14b and are rotatably supported.
As shown in FIGS. 2 and 3, the drive sprocket 15 is formed by two rows of sprockets provided at predetermined intervals in the axial direction of the drive sprocket 15. Claw pieces 17 are projected at a constant pitch.
As shown in FIGS. 1 and 2, a plurality of tension pulleys 18a, 18b, 18c, and 18d are disposed at appropriate positions of the frame members 14a and 14b.

As shown in FIG. 1, the endless track 11 is formed in a belt shape, and both ends thereof are connected to form a traveling belt 12 having an endless belt shape. The driving sprocket 15, the driven wheel 16, and the tension pulley 18a. , 18b, 18c, 18d, etc., and is engaged with each claw piece 17 of the drive sprocket 15.
Although not shown, the rotation of the motor is transmitted to the rotating shaft 19 of the drive sprocket 15 via a gear reduction mechanism.

As shown in FIG. 1, the endless track 11 is formed in a belt shape, and both ends thereof are connected to form the endless belt-like running belt 12 as described above.
The travel device 13 is formed such that the distance between the drive sprocket 15 and the driven wheel 16 can be arbitrarily changed. Therefore, when changing the distance dimension, it is necessary to change the total length of the traveling belt 12 accordingly.
Therefore, the endless track 11 can be shortened by cutting at a required position, or the endless track 11 can be connected to the end of the endless track 11 in the longitudinal direction to extend the entire endless track 11. Is formed.

  The endless track 11 is made of EVA, which is a flexible material, and is configured by connecting a large number of components 21 having a fixed shape in the length direction as shown in FIGS. .

Each component 21 is formed in a planar rectangular plate shape as shown in FIGS. 4 and 5, and each component 21 is formed in the longitudinal direction of the endless track 11 as shown in FIGS. 7 and 8. Are arranged continuously with a certain interval dimension.
As shown in FIGS. 4 and 5, the boundary portion of each component 21 is formed in a thin-walled portion 22 so that it can be easily cut with a knife or scissors and bend easily.

As shown in FIGS. 4 and 5, each component 21 is provided with connecting holes 23a and 23b at both ends in the width direction and a center connecting hole 24 at the center in the width direction. It is installed.
Each component 21 is provided with sprocket engagement holes 25a and 25b on both sides in the width direction of the central connection hole 24, as shown in FIGS.

As shown in FIG. 4, a non-slip convex portion 37 b is formed on the surface portion 35 of each component 21 of the endless track 11 so as to be orthogonal to the length direction of the endless track 11.
As shown in FIGS. 4 and 6, the anti-slip convex portion 37 b has a thickness dimension in which the thickness dimension of the central portion A in the width direction of each component 21 is larger than the thickness dimension of the end portions B in the width direction. And is inclined from the width direction both ends B of the component 21 toward the width direction center A.

  Further, as shown in FIG. 5, the back surface portion 36 of each component 21 of the endless track 11 is located along the length direction of the endless track 11 at both sides of the sprocket engagement holes 25 a and 25 b, respectively. Guide protrusions 39a and 39b for preventing displacement in the width direction are provided.

  As shown in FIG. 1, when both ends of the endless track 11 are connected to form an endless belt, or when another endless track constituent member is connected to the endless track 11, the whole is extended. A connecting member 20 as shown in FIG.

  The connecting member 20 is made of PP (polypropylene), which is a rigid material. As shown in FIGS. 9 and 10, the board portion 26 and connecting pin portions 27a, 27b, 27c, 27d, 28a, 28b, have.

  As shown in FIGS. 9 and 10, the substrate portion 26 is formed in a planar rectangular shape with the same shape as the component portion 21 of the endless track 11 and has the same thickness dimension.

As shown in FIGS. 9 and 10, the connecting pin portions 27a, 27b, 27c, 27d, 28a, and 28b are connected to the end side connecting pin portions 27a, 27b, 27c, and 27d and the central connecting pin portions 28a and 28b. The end-side connecting pin portions 27a, 27b, 27c, and 27d are engaged with the connecting hole portions 23a and 23b provided at both ends in the width direction of the endless track 11, as shown in FIGS. Further, the central connection pin portions 28a and 28b are formed so as to be able to engage with the central connection hole portion 24 provided in the central portion in the width direction of the endless track 11. .
That is, the connecting hole portions 23a, 23b and the end side connecting pin portions 27a, 27b, 27c, 27d, the central connecting hole portion 24, and the central connecting pin portions 28a, 28b are respectively formed in the width of the endless track 11. Arranged at the same position in the direction.

The connecting pin portions 27a, 27b, 27c, 27d, 28a, 28b are formed so as to protrude from the back surface portion 31 of the substrate portion 26, as shown in FIG.
That is, the connecting pin portions 27a, 27b, 27c, 27d, 28a, and 28b are connected to the rear end portion 31 of the substrate portion 26 as shown in FIG. 10, and as shown in FIG. The tip portion is arranged so that the outer side of both side surface portions 33a and 33b of the substrate portion 26 faces the surface portion 32 side.
That is, the front end portions of the connecting pin portions 27a, 27b, 27c, 27d, 28a, 28b can be press-fitted into the connecting hole portions 23a, 23b and the central connecting hole portion 24 of the component portion 21 from the back side. Is formed.
Further, as shown in FIG. 9, the connecting pin portions 27 a, 27 b, 27 c, 27 d, 28 a, 28 b have locking portions that can be engaged with the connecting hole portions 23 a, 23 b and the central connecting hole portion 24. Projections 29a, 29b, 29c, 29d, 30a, and 30b are formed.

  Further, as shown in FIGS. 9 and 10, the end side connecting pin portions 27a, 27b, 27c, and 27d formed at the both ends in the width direction of the endless track 11 are formed in a substantially circular cross section, and The central connecting pin portions 28a, 28b provided at the center in the width direction of the track 11 are formed to have a square cross section and a larger cross sectional area than the end side connecting pin portions 27a, 27b, 27c, 27d. Yes.

  Further, as shown in FIG. 9 and FIG. 10, the sprocket engagement holes 25 a and 25 b and the sprocket engagement holes are formed in the components of the endless track contacting the installation surface and the base plate of the connecting member, respectively. The portions 34a and 34b are provided so as to be at substantially the same position in the width direction of the endless track.

As shown in FIG. 9, the surface portion 32 of the base plate portion 26 of the connecting member 20 that contacts the installation surface and each of the component portions 21 are provided with a non-slip convex portion 37b and a non-slip convex portion 37a, respectively. Are formed at the same position in the width direction of the endless track.
Similarly to the anti-slip convex portion 37b formed in each of the constituent portions 21, the convex portion 37a also has a thickness dimension at the center portion C in the width direction of the substrate portion 26. It has a thicker thickness dimension, and is inclined from the width direction both end portions D of the substrate portion 26 toward the width direction central portion C.
Further, as shown in FIG. 10, the back surface portion 31 of the substrate portion 26 of the connecting member 20 has the same arrangement as the guide protrusions 39a and 39b formed on the respective constituent portions 21, and is similarly displaced in the width direction. Guide protrusions 38a and 38b for prevention are provided.

When the endless tracks 11 are connected to each other, as shown in FIGS. 11 and 12, the base plate portions 26 of the connecting members 20 are arranged at the end portions in the length direction of the endless tracks 11 on both sides. The end portion side connecting pin portions 27a, 27b, 27c, 27d of the connecting member 20 are engaged with the connecting hole portions 23a, 23b in the component portion 21 located on both sides, and the central connecting portion The pin portions 28a and 28b are engaged with the central connecting hole portion 24 in the component portion 21.
Thereby, as shown in FIGS. 7 and 8, the endless tracks 11 on both sides can be connected in series via the connecting member 20.

Hereinafter, the operation of the first embodiment will be described.
The endless track 11 according to the first embodiment is formed by square-shaped constituent parts 21 that are continuously provided along the length direction at a constant interval, and the constituent parts 21 can be cut. Since the thin-walled portion 22 is continuously formed along the length direction, the endless track 11 can be made to have a desired length by cutting at the thin-walled portion 22. .
In addition, the thin-walled portion 22 in the endless track 11 is formed over the entire width direction and does not have a slit, so that it is possible to avoid the problem that the endless track is twisted by opening the slit. Therefore, it becomes difficult to come off the sprocket 15.

  Further, as shown in FIG. 6, the cross section of each component 21 in the width direction is such that the thickness dimension of the central portion A in the width direction of each component 21 is the width direction on the surface side of each component 21. Since it has a thickness dimension larger than the thickness dimension of both end portions B, and is inclined from the width direction both end portions B of the component portion 21 toward the width direction central portion A, the endless track 11 is moved along the endless track 11. 13, the surface portion 35 of the component 21 is in contact with the running surface only at the center in the width direction, and both end portions in the width direction are not in contact with the running surface. Decrease. Therefore, when turning, etc., the friction is small so that it is difficult to twist and it is difficult to come off the sprocket 15.

  Moreover, since each said component part 21 is formed wide, it becomes much more difficult to twist. In addition, since the sprocket engagement holes 25a and 25b that can be engaged with the sprocket 15 are provided on both side portions in the width direction of each component 21 described above, the driving force received from the sprocket 15 is not concentrated on one central location. , Since it is dispersed on both sides in the width direction, it becomes difficult to twist. Therefore, the wheel removal from the sprocket 15 is prevented.

In addition, the endless track 11 is formed so that the end portions in the length direction can be connected via the connecting member 20, so that the entire length of the endless track 11 is extended or the end portions are connected to each other. An endless belt can be formed.
Further, each of the components 21 is provided with connecting holes 24, 23a, and 23b that can be engaged with the connecting member 20 at the width direction intermediate portion and the width direction both ends. The part 21 and the connecting member 20 are connected at three places, that is, the intermediate part in the width direction and both end parts in the width direction. Therefore, the endless track 11 is less likely to be twisted at the connecting portion, and the connecting member 20 can be prevented from coming off the endless track 11 due to twisting.

Further, since the surface portion 35 of each component portion 21 is formed with a non-slip convex portion 37b formed along the width direction, the convex portion 37b reliably grips the traveling surface and travels. Is stable.
In addition, since the guide protrusions 39a and 39b are formed on the back surface portion 36 of each component portion 21 at both outer positions of the sprocket engagement holes 25a and 25b in the width direction, the sprocket 15 is connected to the endless track 11. However, the claw piece 17 of the sprocket 15 is not disengaged from the sprocket engagement holes 25a and 25b.

  The endless track 11 is formed of a flexible material, but the connecting member 20 is formed of a material having rigidity greater than that of the endless track 11, so that the connecting member 20 is twisted. Deformation is prevented, and it is difficult to come off the sprocket 15.

FIG. 13 shows a power transmission mechanism 40 according to Embodiment 2 of the present invention.
The endless track 11 is formed as an endless ring shape by connecting the constituent portions 21 located at the end portions via the connecting member 20, and is used as the belt conveyor 11.
The endless track 11 is wound around a drive sprocket 41 attached to the drive shaft 42 and a driven sprocket 43 attached to the driven shaft 44 to transmit the rotational force of the drive shaft 42 to the drive shaft 42. .

FIG. 14 shows a motion conversion mechanism 45 according to Embodiment 3 of the present invention.
The endless track 11 is formed in a linear shape having a required length by connecting the constituent portions 21 located at the end portions via the connecting member 20, and is attached to the upper surface portion of the slide member 48 that reciprocates. It is used as a rack 49.
A drive sprocket 46 used as a pinion 50 is engaged with the endless track 11 as the rack 49, and the rotation of the shaft 47 of the drive sprocket 46 is converted into a reciprocating linear motion of the slide member 48.

The present invention is applicable to all connection structures in which end portions of endless tracks driven by sprockets are connected via a connecting member.

It is a side view of the traveling part comprised using the drive structure of an endless track concerning Example 1 of the present invention. It is a perspective view of the traveling apparatus which mounts the drive structure of an endless track concerning Example 1 of the present invention. It is a perspective view of the drive sprocket in the traveling apparatus which mounts the drive structure of an endless track concerning Example 1 of the present invention. It is a surface side perspective view of one component which comprises the drive structure of an endless track concerning Example 1 of the present invention. It is a back surface side perspective view of one component which comprises the drive structure of an endless track concerning Example 1 of the present invention. It is a side view of one component which comprises the drive structure of an endless track which concerns on Example 1 of this invention. It is a surface side perspective view of the drive structure of an endless track concerning Example 1 of the present invention. It is a back surface side perspective view of the drive structure of an endless track concerning Example 1 of the present invention. It is a surface side perspective view of the connection member used in order to connect the endless track concerning Example 1 of the present invention. It is a back surface side perspective view of the connection member used in order to connect the endless track concerning Example 1 of the present invention. It is a surface side perspective view which shows the arrangement | positioning relationship of the endless track and connection member which concern on Example 1 of this invention. It is a back surface side perspective view which shows the arrangement | positioning relationship of the endless track and connection member which concern on Example 1 of this invention. It is a side view of the power transmission mechanism which uses an endless track concerning Example 2 of the present invention. It is a side view of the motion conversion mechanism which uses an endless track concerning Example 3 of the present invention.

Explanation of symbols

11 Endless orbit
DESCRIPTION OF SYMBOLS 12 Traveling belt 13 Traveling apparatus 14a, 14b Frame member 15 Drive sprocket 16 Driven wheel 17 Claw piece 18 Tension pulley 19 Rotating shaft 20 Connecting member 21 Component 22 Thin-walled portion 23a, 23b Connecting hole 24 Central connecting hole 25a, 25b Sprocket engaging hole 26 Substrate 27a, 27b, 27c, 27d Connecting pin 28a, 28b Connecting pin 29a, 29b, 29c, 29d Locking protrusion 30a, 30b Locking protrusion 31 Back surface 32 Surface 33a, 33b Side surface portions 34a, 34b Sprocket engaging hole 35 Front surface portion 36 Back surface portions 37a, 37b Non-slip convex portions 38a, 38b Misalignment preventing projections 39a, 39b Misalignment preventing projections 40 Power transmission mechanism 41 Drive sprocket 42 Drive Shaft 43 Driven sprocket 44 Driven shaft 45 Motion conversion mechanism 46 Drive sprocket 47 Shaft 48 Slide member 49 Rack 50 Pinion

Claims (8)

An endless track drive structure that is driven by being engaged with a sprocket provided in the traveling device,
The endless track is formed by a plurality of square-shaped components continuously provided along the length direction, and a thin-walled portion disposed between the components.
The drive structure for an endless track, wherein the thin-walled portion is formed so as to be cut and formed over the entire width direction.   The cross section in the width direction of the component part has a thickness dimension in which the thickness dimension of the central part in the width direction of the component part is thicker than the thickness dimension of both ends in the width direction on the surface part side of the component part. 2. The drive structure for an endless track according to claim 1, wherein the structure is inclined from both ends in the width direction toward the center in the width direction.   The said structure part is formed wide, The sprocket engagement hole part which can each be engaged with a sprocket is provided in the width direction both sides, The one described in any one of Claims 1-2 characterized by the above-mentioned. Endless track drive structure. The endless track is formed such that end portions in the length direction can be connected via a connecting member,
Each of the constituent parts is formed with a connecting hole part into which the connecting member can be engaged with each of the intermediate part in the width direction and both end parts in the width direction of the constituent parts. An endless track drive structure described in any of the above.   Each of the constituent parts is formed in a flat rectangular shape, and a non-slip convex part formed along the width direction is formed on the surface part in contact with the installation surface, and on the back part of the constituent parts. The drive structure of the endless track according to any one of claims 1 to 4, wherein guide protrusions are formed at both outer positions of the sprocket engagement hole in the width direction.   The said endless track is formed of a material having flexibility, and the connecting member is formed of a material having rigidity higher than that of the endless track. Endless track drive structure.   The endless track drive structure according to any one of claims 1 to 6, wherein the endless track is used as a belt conveyor for transmitting motion. The endless track is cut to a predetermined length and attached to a member that reciprocates, and is used as a rack that converts rotational motion into linear reciprocating motion by being engaged with and driven by the sprocket used as a pinion. The drive structure for an endless track according to any one of claims 1 to 6.

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