JPH083235Y2 - Orbital cultivation management device and its drive wheels and drive casters - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] This invention is to lay a track along a tea ridge and use wheels on the track to mechanize various management work such as cultivation and management plucking of tea gardens that are often cultivated on sloping land. A track-type cultivation management device that is used by mounting a pruning machine or a plucking machine on the running frame, a grooved track drive wheel used for the frame of this cultivation management device, and a drive that can be provided at low cost For castors and related.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG. 12, a desired branching machine and a plucking machine are installed on a gate-shaped stand 4 which is run by wheels 3 on tracks 2 laid one by one in a passage between tea ridges 1. Equipped with a machine and other management machines to care for tea plants and pluck (harvest) tea leaves.
In order to mechanize the track-type cultivation management device 5 for mechanizing work and the ridge movement work of the cultivation management device 5, the ridge movement carriage 7 that moves along the ridge movement rail 6 is, for example, an actual open flat plate 4-77706. It is described in Japanese Patent Publication and other publications, belongs to the public knowledge, and is put to practical use. In FIG. 12, reference numeral 3
Reference numeral 2 is a track wheel of the ridge moving carriage, and 33 is a grounding wheel thereof.

Next, a resin-coated metal tube having a circular cross section and having a thin and uniform layer of synthetic resin coated and adhered to the outer peripheral surface of the thin-walled steel tube, and a track for a cultivation control device constituted by the metal tube are also provided, for example. It is described in Japanese Utility Model Laid-Open No. 1-138902 and others, belongs to the publicly known field, and is put to practical use. Furthermore, FIG.
As illustrated in FIG. 3, a resin-coated metal pipe 40 in which a circumferential non-slip groove 11 is formed in a concavo-convex shape continuous in a wavy shape in the axial direction on the surface of the coating resin P that covers the outer peripheral surface of the thin steel pipe S. , And an anti-slip track formed thereby are also disclosed in Japanese Patent Application No. 4-85174 and drawings.

Further, the track wheels having grooves, which are used as casters of the pedestal of the track type cultivation management apparatus described above and which run on the track, in particular, drive wheels which are rotationally driven by transmission of power, For example, as shown in FIG. 10, a drive wheel for a track is known in which a non-slip member a made of rubber or synthetic resin is attached to a groove bottom portion of a groove k on an outer peripheral surface of a metal wheel body f, and is practically used. Have been served. In the drive caster of FIG. 10 using the drive wheels as traveling wheels, the wheel body f is attached using the key e to the axle d rotatably supported by the bearing c of the wheel holder b. A key wheel g is also used at one end of the axle d that is projected outwardly of the wheel, and a transmission wheel h for transmitting rotational power such as a sprocket, a belt wheel, a rope wheel, and a gear is integrally formed with the wheel body f. It is installed in a rotating state and travels on a track j formed of a resin-coated metal tube having a circular cross section.

The drive casters illustrated in FIGS. 11A and 11B travel on a track j using a metal angle in a chevron shape. The transmission wheel h is housed side by side with the traveling wheels made of metal or synthetic resin in the side frames on both left and right sides of the yoke-type wheel holder b, and the transmission wheel h is connected to the traveling wheels by the bolts m and the wheel holder b. It is installed in such a manner that it rotates integrally around a fixed shaft d fixed to.

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In a track-type cultivation management device used in a tea garden cultivated on a sloping land, it is essential to solve the problem of the drive wheels slipping. In this regard, a wheel in which the anti-slip member a is attached to the bottom of the groove k on the outer peripheral surface like the drive wheel illustrated in FIG.
It is effective in preventing or reducing slip. When the material of the anti-slip member a is formed of polyurethane or synthetic rubber having a low hardness, the coefficient of friction is increased and the slip is reduced, but on the other hand, the wear amount is increased and the life is shortened. On the contrary, when molded from polyurethane having a high hardness of 80 ° to 90 ° and having high durability, the amount of wear is small and the life is extended, but this time there is a problem that the friction coefficient is small and slipping easily occurs.

Next, as shown in FIG. 10 or FIG. 11A, when a grooved track wheel having a groove k into which the track j fits is to be injection-molded with synthetic resin, the molding die is Dividing the entire outer peripheral part of the molded product (slide piece type)
In addition to the structure, the molding die becomes large and complicated, and the die manufacturing cost is inevitably increased. As a result, the size of the injection molding machine to be used becomes large, the molding cost rises, and the cost is remarkably increased especially in the case of small-volume production. This point can be said to be exactly the same when insert-molding the anti-slip member a.

Further, in the conventional drive wheel as illustrated in FIGS. 10 and 11, as a means for installing the wheel main body f and the transmission wheel body h in a state of integrally rotating, processing of a key groove,
In addition to the processing of bolt holes and screw holes, key e,
Since parts such as g and bolt m are also required, the number of parts is large, the number of assembling steps is large, and the cost is high.
Therefore, an object of the present invention is to firstly provide an orbital cultivation management device with less slip, secondly to provide a drive wheel that does not slip or has less slip, and thirdly. Suitable for injection molding of synthetic resin, it is possible to reduce the size and simplification of the molding die and reduce the die manufacturing cost,
The purpose of the present invention is to provide a drive wheel for a track that is suitable for low-volume, low-cost production, and fourth, to provide an inexpensive drive caster.

[0009]

As a means for solving the above-mentioned problems of the prior art, the track-type cultivation management device according to the first invention is a track 2 laid in a cultivation field, and a track 2.
And a pedestal 4 that travels above the wheels 3, the wheel 3 is a grooved wheel having a groove 8 into which the track 2 fits, and the drive wheel 9 is a groove on the outer surface. In the track-type cultivation management device 5 in which the non-slip members 10 are mounted on at least the entire circumference of the bottom part of the track 8, the track 2 is composed of a metal tube 40 having a circular cross section, and the outer peripheral surface of the drive wheel 9. The anti-slip member 10 mounted on the bottom of the groove 8 has a circular arc groove 12 having a radius of curvature smaller than the outer radius of curvature of the track in the range of contact with the track 2 on the outer peripheral surface thereof. It is characterized by being.

The orbital cultivation management device according to the second invention is
The structure of the main part is the same as that of the first invention, and the orbit 2 is
It is composed of a resin-coated metal tube 40 having a circular cross section, and circumferential non-slip grooves 11 are formed on the surface of the coating resin P at equal intervals in the axial direction. The anti-slip member 10 mounted on the bottom of the groove 8 has an arcuate groove 12 having a radius of curvature smaller than the outer radius of curvature of the track formed in the entire outer peripheral surface in a range in which it contacts the track 2 and travels. In addition, anti-slip grooves 13 in the axle direction are formed on the entire circumferential surface of the circular arc groove at equal intervals in the circumferential direction.

A third aspect of the present invention is a drive wheel 9 for a track, which has a groove 8 on the outer peripheral surface in which the track 2 fits, and an anti-slip member 10 is mounted on at least the entire circumference of the bottom of the groove. The main body 14 is composed of a pair of wheel pieces 14a, 14a that are divided into two parts by a dividing surface Q-Q that passes through the center point of the groove 8 on the outer peripheral surface and is perpendicular to the center line of the axle 15. A pair of anti-slip pieces 10 divided in two by a dividing surface Q-Q common to the dividing surface of the wheel body 14.
a, 10a, the pair of wheel pieces 14
a and 14a are the non-slip pieces 1 at the bottom of each groove.
0a is attached to the shaft hole 24 so that the center lines of the shaft holes 24 are aligned with each other, and the shaft holes 24 are combined in a substantially symmetrical shape so that they can be assembled and disassembled integrally. No. 10 is characterized in that an arcuate groove 12 is formed over the entire circumference in the range in which it travels in contact with the track 2 on its outer peripheral surface.

A drive wheel for a track according to a fourth aspect of the invention has a main part in common with the third aspect of the invention, and a wheel body 14 made of synthetic resin passes through the center point of the groove 8 on the outer peripheral surface of the axle. 15
Of a pair of wheel pieces 14a, 14a divided in two by a dividing plane Q-Q perpendicular to the center line of the pair of wheel pieces, the pair of wheel pieces being fitted with the anti-slip pieces at the bottoms of their respective grooves. The shaft lines are combined in a substantially symmetrical shape with their center lines aligned with each other, and are integrally coupled so that they can be assembled and disassembled. In addition, the circular arc groove 12 is formed over the entire circumference, and the anti-slip grooves 13 in the axle direction are formed on the entire circumferential surface of the circular arc groove 12 at equal intervals in the circumferential direction.

A fifth invention is that the wheel holder 19 has an axle 15
In the drive caster in which the traveling wheel and the transmission wheel body 25 are integrally rotated through the drive wheel, the traveling wheel and the transmission wheel body 25 are housed side by side in the side frames 19a, 19a of the wheel holder 19. Is installed in a state in which the lateral displacement of the traveling wheels and the outer surface of the transmission wheel body 25 is regulated on the inner surface of each side frame 19a, and the contact surface between the traveling wheel and the transmission wheel body 25 is a meshing structure capable of transmitting rotation. It is characterized by being connected at 28.

[0014]

As a result, the orbit 2 having a slightly larger diameter comes into contact with the circular arc groove 12 of the anti-slip member 10 so that the shoulders of the circular arc groove 12 are firmly sandwiched in such a manner as to hold the orbit 2 in contact with each other. Almost no slip even on steep slopes. In particular, the anti-slip groove 11 formed on the surface of the track 2 formed of the resin-coated metal tube 40 and the anti-slip groove 13 formed on the outer peripheral surface of the anti-slip member 10 of the drive wheel 9.
As a result of traveling in a state where the and are meshed with each other, it is even more effective in preventing slip.

Therefore, even if the anti-slip member 10 is made of a synthetic resin having a high hardness, the effect of preventing slip does not decrease, and the service life can be extended. Next, the wheel body 14 of the drive wheel for the track having the groove 8 into which the track 2 is fitted on the outer peripheral surface is divided into two, and the wheel piece 14 of the same shape is divided.
As a result of assembling with a, particularly regarding the molding of the groove 8, the molding die 20 does not need to have a split mold structure on the entire outer peripheral portion of the wheel, and can be made into a compact and simplified mold as a normal die structure. Be beneficial. The anti-slip member 10 mounted on the bottom of the groove 8 of the drive wheel 9 also has a dividing surface Q- common to the wheel body 14.
As a result of assembling the non-slip piece 10a of the same shape divided in two by Q, the same can be said for the molding die of the anti-slip piece 10a. In addition, the assembling work for mounting the anti-slip member 10 on the bottom of the groove of the wheel body is extremely simple. Further, it is possible to easily form the anti-slip groove 13 in the axle direction on the entire circumferential surface of the circular arc groove 12 on the outer circumferential surface of the anti-slip member 10.

The driving wheels and the transmission wheel body 25 are connected to each other by the inner surfaces of the wheel holder, the outer surfaces of which are restricted by the inner surfaces of the wheel holder, and the inner contact surfaces of which are connected by a meshing structure 30 capable of transmitting rotation (see FIG. In the case of 8), the processing of the key groove, the processing of the bolt hole and the screw hole is unnecessary, and the management of the key, the bolt, etc. is unnecessary, and the number of parts is small, so that the number of assembling steps can be reduced and the cost can be reduced.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 shows a structure of an injection molding die 20 for molding a wheel piece 14a in which a wheel body of a drive wheel is divided into two, and a molding state of the wheel piece 14a. The wheel piece 14a is a wheel body 14 that constitutes the drive wheel 9 of FIG.
It is divided into two parts by a dividing surface Q-Q that passes through the center point of the groove 8 on the outer peripheral surface of the vehicle and is perpendicular to the center line of the axle 15. In the injection molding die 20, the molding dies 22, 22 'at the central portion for molding the boss portion of the wheel piece 14a and the molding dies 21, 21' from the groove portion to the central disk portion are provided on the left and right outer frames, respectively. Left and right female mold 36 and male mold 3 set in 23 and 23 '
Female die 3 as a punching die structure.
6 and the male mold 37 are opened and closed in the left-right direction from the position of the parting line 35 in FIG.

FIG. 2 shows a side view of the molded wheel piece 14a. A shaft hole 24 through which the axle is passed is formed in the center portion, and eight (however, the number is not limited to this) reinforcing ribs 26 are radially arranged, and the central disk portion is at an intermediate position avoiding the reinforcing ribs 26. Further, four bolt holes 27 through which fastening bolts are passed in the axial direction (however, the number is not limited to this number) are provided in an arrangement that divides the circumference into four equal parts.

3 and 4, the slip preventing member 10 is provided at the bottom of the groove 8 on the outer peripheral surface of the wheel body 14 made by combining two wheel pieces 14a of the same shape divided into two as described above.
And drive wheels 9 mounted thereon, and a chain sprocket 25 as a transmission wheel that receives rotational power from a prime mover (not shown).
And the side frame 19 of the yoke type wheel holder 19
a, 19a are arranged side by side via the axle 15, and are used for orbital driving in a state in which lateral deviations of the outer side surfaces of the wheel body 14 and the chain sprocket 25 are restricted on the inner side surfaces of the side frames 19a. Shows a caster. The wheel body 14 and the non-slip member 10 have a common dividing plane Q-Q that passes through the center point of the groove 8 and is orthogonal to the center line of the axle 15.
A pair of wheel pieces 1 of almost the same shape divided in two
4a, 14a and a pair of anti-slip pieces 10a, 10a
It is composed of a combination of. The wheel piece 14a and the non-slip piece 10a are separately injection-molded, and the anti-slip piece 10a is attached to the wheel piece 1 prior to the assembly of the wheel body.
It is attached to the bottom of the groove 4a. Then, the pair of wheel pieces 14a, 14a are combined in a symmetrical shape with the center lines of the shaft holes 24 aligned, and the bolts 28 are passed through the bolt holes 27 as shown in FIG. The drive wheel 9 which can be assembled and disassembled is assembled.

The non-slip piece 10a is a wheel piece 14
Structural resistance is exhibited as the anti-slip member 10 due to the bite structure of the groove a of the groove a and the fastening force between the wheel pieces 14a. Non-slip member 10 assembled as described above
A circular arc groove 12 having a radius of curvature (R = 19 mm), which is slightly smaller than the outer radius of curvature (R = 21 mm) of the track 2 having a circular cross section, is formed in the range of the outer peripheral surface of the track 2 which travels in contact with the track 2. ing. Therefore, the shoulders of the arcuate groove 12 are strongly sandwiched so as to hold the track 2 and come into contact with each other, which is effective in preventing slip. Further, on the entire circumferential surface of the circular arc groove 12, anti-slip grooves 13 in the axle direction are formed at equal intervals in the circumferential direction with the shape and structure shown in detail in FIGS. 3B and 3C.
Therefore, as shown in FIG. 13, the track 2 is formed into a thin steel pipe S.
A resin-coated metal pipe 40 having a circular cross section in which a synthetic resin is coated and adhered to the outer peripheral surface of the resin, and circumferential non-slip grooves 11 are formed on the surface of the resin P at equal intervals in the axial direction.
When configured by using, the slip prevention member 1 of the wheel body 14
The anti-slip groove 13 formed in 0 and the anti-slip groove 11 of the track 2 travel in a mutually meshing manner, which is more effective in preventing slip.

Since the anti-slip member 10 is also injection-molded as the anti-slip piece 10a which is divided in two by the above-mentioned dividing surface Q-Q, the arc groove 12 can be easily formed by a normal die. The molding die is a wheel body 1
As in the case of 4, it is not necessary to make the entire outer peripheral portion into a split mold structure, and the molding die can be made compact and simple. Further, the work of mounting the anti-slip member 10 on the bottom of the groove 8 of the wheel body 14 is extremely simple, and the anti-slip groove 13 in the axle direction can be easily formed on the entire circumferential surface of the arc groove 12.

The drive caster 9 shown in FIGS. 3 and 4 has a structure of a contact surface portion between the wheel body 14 and the chain sprocket 25, and a transmission cylinder portion 25a is provided on one side surface (the left side surface in FIG. 3) of the chain sprocket 25. The reinforcing rib 2 is provided at the distal end of the tubular portion 25a so as to cross the annular recess 40 formed in the boss portion of the wheel body 14 in the radial direction.
6 (see FIG. 2), the number of slits 25b having substantially the same groove width as the plate thickness and the length substantially equal to the depth of the recess 40 is provided in the same number as the reinforcing ribs 26.
5b is fitted to the reinforcing rib 26, and is coupled by a meshing structure capable of transmitting rotational power. As previously mentioned,
The wheel body 14 and the chain sprocket 25 are the wheel holder 1
Since the nine side frames 19a, 19a are regulated so as not to laterally shift outward, the above-mentioned meshing structure is favorably held. However, the meshing structure is not limited to the relationship between the reinforcing ribs 26 and the slits 25b, and can be implemented by using a combination of circumferential concavities and convexities as shown in FIGS. 8 and 9A and 9B. Is.

In the drive caster shown in FIG. 3, the axle 15 is a fixed shaft fixed to the wheel holder 19 with the nut 31, and the drive wheel 9 serves as a traveling wheel.
Upon receiving power transmission from 5, the vehicle rotates about the axle 15. Next, FIG. 6 exemplifies a structure of an injection molding die 20 'for molding a wheel piece 18a which is divided into two parts of the driven wheel 17 for a track (see FIG. 7) and a molding state of the wheel piece 18a. There is. In short, this injection molding die 20 '
The basic structure of is the injection wheel mold 2 for the drive wheel shown in FIG.
Same as 0. That is, the center molding pieces 22 and 22 'for molding the boss portion of the wheel piece 18a and the molding pieces 21 and 21' from the groove portion to the central disk portion are set in the left and right outer frames 23 and 23 ', respectively. Left and right female molds 36,
Parting line 3 of FIG. 6 composed of a pair of male molds 37
It is opened and closed in the left-right direction from position 5. Therefore, as is clear from the comparison between FIG. 1 and FIG. 6, the wheel piece 14 of the drive wheel is
a and the injection molding of the wheel piece 18a of the driven wheel 17,
This is done by using a common injection molding die 20 or 20 'and exchanging the molding pieces 21 and 21' from the groove portion to the central disk portion. Therefore, the die manufacturing cost can be largely reduced and the management can be omitted.

FIG. 7 shows a driven wheel 17 formed by combining two wheel pieces 18a injection-molded as described above. A groove 8 into which the track 2 is fitted is provided on the outer peripheral surface of the driven wheel 17. Further, as is apparent from FIG. 7, the wheel piece 18a constituting the driven wheel 17 is divided into two parts by a common dividing plane Q-Q which also passes through the center point of the groove 8 and is perpendicular to the center line of the axle or the shaft hole 24. And have substantially the same shape. The pair of wheel pieces 18a, 18a are combined in a symmetrical shape with the center lines of the shaft holes 24 aligned, and bolts are passed through the bolt holes to fasten the nuts in the same manner as in the case of the drive wheel shown in FIG. Driven wheels 17 that are integrally coupled together and can be assembled and disassembled.

Incidentally, among the wheels 3 of the gantry 4 illustrated in FIG. 12, the drive wheels 9 shown in FIGS. 3 and 4 are adopted as the drive wheels, and the track 2 is formed on the outer peripheral surface illustrated in FIG. By using the resin-coated metal pipe 40 having the non-slip groove 11, it is possible to provide a cultivation management device with less slip even on a sloping ground. Further, the driven wheels 17 shown in FIG. 7 can be preferably used as the non-drive wheels for the orbits of the gantry 4 and the ridge moving carriage 7.

Next, FIG. 8 shows a non-orbital rim type drive caster. In short, the illustrated drive caster can be applied, for example, as the grounding wheel 33 of the ridge moving carriage 7 shown in FIG. 12, and the flat tire 38 is attached to the rim of the wheel body 14 so that the drive wheel 9 can run. Is configured as. A feature of the drive caster of FIG. 8 is that the wheel body 19 and the transmission wheel body 25 are integrally mounted on the wheel holder 19 via the axle 15. The wheel body 14 and the transmission wheel body 25 are provided on both side frames 19a, 19a of the yoke type wheel holder 19.
They are housed side by side inside, and are installed in a state in which the lateral deviation of the outer side surfaces of the wheel body 14 and the transmission wheel body 25 to the outside is restricted by the inner side surfaces of the side frames. Further, the wheel body 14
The contact surfaces of the transmission wheel body 25 and the transmission wheel body 25 are connected by a meshing structure 30 capable of transmitting rotational power. 9A and 9B illustrate a specific structure of the meshing structure 30 of the wheel body 14. The meshing structure 30 shown in FIG. 9A is composed of a circumferential concavo-convex structure in which concaves and convexes extend radially, and a circle indicates a convex,
The mark Δ is concave, indicating a configuration in which both are alternately arranged. Naturally, the transmission wheel body 25 is provided with a structure in which the concavo-convex relationship is exactly opposite, and the two are meshed in a staggered manner. Figure 9
B shows the cross section of the concavo-convex structure in the circumferential direction.

It should be noted that the drive caster of the present invention is not always used as a traveling wheel, but the anti-slip member 10 and the tire 38 are used.
It does not have to be a drive wheel having the like, and the slip prevention member 1
As long as it can be practically used without 0, the tire 38, etc., it may be a traveling wheel f'as shown in FIG. The orbital cultivation management device, the orbital drive wheels, and the drive casters of the present invention can be widely applied to various orbital cultivation management devices in institutional horticulture.

[0028]

[Effects of the Present Invention] The track-type cultivation management device according to the present invention uses a material having high hardness for the anti-slip member 10 of the drive wheel 9 to obtain a long service life, while maintaining a good life between the track 2 and the wheel. Slip can be reduced, and it is especially effective for use with less slip on sloping land, contributing to improved efficiency of cultivation management and usability.

The drive wheel according to the present invention is, first of all,
It is possible to provide wheels that clear the demand for small quantities and low costs. Secondly, damaged wheel parts can be easily replaced and maintained. Thirdly, even if the injection molding die of the drive wheel for molding the wheel main body with the two-piece wheel piece is a track wheel having the groove 8 on the outer peripheral surface, the slip preventing member 10 is provided at the bottom of the groove 8. However, it is not necessary to make the entire outer peripheral portion into a split mold structure, and it is possible to reduce the size of the molding die, simplify the molding die, and reduce the die manufacturing cost. The same applies to the anti-slip member 10 assembled with the anti-slip piece 10a divided in two, which is easy to mold and easy to install in the groove of the wheel body.
The molding die can be downsized and simplified.

Further, in the drive caster of the present invention, the traveling wheels and the transmission wheel body 25 have wheel holders 19 on both outer sides.
Since the meshing structure 30 which is regulated by both inner side surfaces of the inner contact surface and the inner contact surface is capable of transmitting rotational power is constantly maintained, the number of parts and the number of processing and assembling steps can be reduced, which leads to cost reduction. Be beneficial.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state in which a wheel piece of a drive wheel for a track is injection-molded and a mold structure.

FIG. 2 is a side view of a molded wheel piece.

FIG. 3 is a front view showing a driving caster using driving wheels for a track in a half section.

FIG. 4 is a side view of the drive caster.

5 is a sectional view taken along line 5-5 of FIG.

FIG. 6 is a cross-sectional view showing a state in which a wheel piece of a driven wheel for a track is injection-molded and a mold structure.

FIG. 7 is a cross-sectional view showing a driven wheel for a track from the front direction.

FIG. 8 is a front cross-sectional view showing a drive caster for non-orbital use.

9A is a side view showing a wheel main body of a drive wheel used for the caster, and B is a sectional view showing unevenness of a meshing structure. FIG.

FIG. 10 is a cross-sectional view showing a conventional caster for driving, which is used for a track, as viewed from the front direction.

FIG. 11A is a sectional view in the front direction showing a caster for driving another conventional track, and B is a side view.

FIG. 12 is a perspective view showing an example of a track-type cultivation management device.

FIG. 13 is a perspective view showing a resin-coated metal tube with a non-slip groove.

[Explanation of symbols]

 2 track 3 wheel 4 frame 8 groove 9 drive wheel 10 anti-slip member 40 resin-coated metal tube 12 arc groove 11, 13 anti-slip groove 14 wheel body 15 axle 14a wheel piece 10a anti-slip piece 24 shaft hole 17 driven wheel 20 injection molding Mold 21 Molding piece 19 Wheel holder 25 Transmission wheel 19a Side frame 30 Interlocking structure

Claims (5)

[Scope of utility model registration request] 1. A grooved wheel having a track laid in a cultivating field and a pedestal that travels on the track via wheels, wherein the wheel has a groove on the outer peripheral surface of which the track fits. ,
In the track type cultivation management device in which the drive wheel is equipped with a non-slip member at least on the entire circumference of the bottom part of the groove on the outer peripheral surface, the track is composed of a metal tube having a circular cross section, The non-slip member mounted on the bottom of the groove on the outer peripheral surface has an arcuate groove having a radius of curvature smaller than the outer radius of curvature of the track formed on the entire circumference in the range of contact with the track running on the outer peripheral surface. Orbital cultivation management device characterized by being 2. A grooved wheel having a track laid in a cultivating field and a pedestal that travels on the track via wheels, wherein the wheel is a grooved wheel having a groove into which the track fits on an outer peripheral surface thereof. ,
In the track type cultivation management device in which the drive wheel is equipped with a non-slip member at least around the entire bottom of the groove on the outer peripheral surface, the track has a cross section in which the outer peripheral surface of the thin-walled steel pipe is coated with synthetic resin and adhered. It is composed of a circular resin-coated metal tube, and the non-slip grooves in the circumferential direction are formed at equal intervals in the axial direction on the surface of the coated resin, and it is mounted on the bottom of the groove on the outer peripheral surface of the drive wheel. The non-slip member has an arcuate groove having a radius of curvature smaller than the outer radius of curvature of the track formed on the entire outer peripheral surface in a range where the track travels in contact with the track, and the arcuate groove is formed on the entire circumferential surface of the arc groove. An orbital cultivation management device, characterized in that the non-slip grooves are formed at equal intervals in the circumferential direction. 3. A drive wheel for a raceway having a groove on the outer peripheral surface to which a raceway is fitted, and a slip preventing member is mounted on at least the entire circumference of the bottom portion of the groove. It consists of a pair of wheel pieces that are split in two at a split surface that passes through the center point and is perpendicular to the center line of the axle, and the anti-slip member is also split in a split surface that is common to the split surface of the wheel body. The pair of wheel pieces can be assembled and disassembled by combining the pair of wheel pieces in a substantially symmetrical shape with the center lines of the shaft holes aligned with each other with the non-slip pieces attached to the groove bottoms. In the coupled state as described above, the non-slip member has arc grooves formed over the entire circumference in a range in which the anti-slip member travels in contact with the track on its outer peripheral surface, Trajectories characterized by Drive wheels for. 4. A track drive wheel having a groove on the outer peripheral surface for fitting a track, and a slip preventing member is mounted on at least the entire circumference of the bottom of the groove, wherein the wheel body made of synthetic resin has an outer periphery. It consists of a pair of wheel pieces divided in two by a dividing surface that passes through the center point of the groove of the surface and is orthogonal to the center line of the axle, and the anti-slip member also divides in two by a dividing surface common to the dividing surface of the wheel body. Consisting of a pair of anti-slip pieces, the pair of wheel pieces are combined in a substantially symmetrical shape with the center lines of the shaft holes aligned with each other with the anti-slip pieces attached to the groove bottom portions, Being integrally coupled so that they can be assembled and disassembled, and in the state in which they are coupled as described above, the anti-slip member has an arcuate groove formed over the entire circumference in the range in which it travels in contact with the track on its outer peripheral surface. , Cars on the entire circumference of the arc groove Synthetic resin drive wheels for raceways, characterized in that axial non-slip grooves are formed at equal intervals in the circumferential direction. 5. A drive caster, wherein a traveling wheel and a transmission wheel are installed in a wheel holder in such a manner that the traveling wheel and the transmission wheel rotate integrally with each other via an axle, wherein the traveling wheel and the transmission wheel are provided in a side frame of the wheel holder. They are stored side by side, and are installed in a state where the lateral displacement of the traveling wheels and the outer surface of the transmission wheel body is restricted on the inner surface of each side frame, and the contact surface between the traveling wheel and the transmission wheel body is a meshing structure that can transmit rotation. Drive casters, characterized by being joined by.