JP2016034789A - Nonslip structure of crawler for vehicle, tabular hook structure, and non-slip method of crawler for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nonslip structure of a crawler for a vehicle with high practicability which is adaptable to all bad roads, can stably and sufficiently obtain non-slip effect, and has easy handling.SOLUTION: A nonslip structure 50 of a crawler for a vehicle is a nonslip structure in the crawler for the vehicle including: a loop shaped band body; a plurality of convex lugs disposed on the band body; and a recessed part formed between the lugs. The nonslip structure 50 of the crawler for the vehicle includes: two tabular hook structures 10 and 20 to be engaged to each side end part of the band body; a coupling structure 30 for coupling between the respective tabular hook structures 10 and 20; and brake means for controlling non-slip of the crawler. The brake means is configured so that other than brake means 14 and 24 disposed on the tabular hook structure, the coupling structure 30 itself also functions as the brake means.SELECTED DRAWING: Figure 1A

Description

  The present invention relates to a vehicle crawler anti-slip structure, a plate-like hook structure, and a vehicle crawler anti-slip method, and in particular, in a crawler-equipped vehicle used in agriculture, forestry, civil engineering, construction, etc. The present invention relates to an anti-slip structure for a crawler for a vehicle, a plate-like hook structure, and a non-slip method for the crawler for a vehicle that can obtain an anti-slip effect of the crawler.

  A rubber crawler generally used as a crawler for a vehicle is a loop-shaped belt body having a predetermined width that is stretched over a drive wheel, and convex lugs are provided on the belt at predetermined intervals. Is formed. The rubber crawler circulates in an endless track in response to the rotation of the driving wheel, and the rug bites into the ground so that the vehicle can travel.

  However, since the lugs are formed with a constant protrusion height, dirt and snow enter the concave streak in the case of rough roads such as mud, snow, and freezing, and the ground contact surface of the crawler becomes smooth and flat. As a result, the lag biting into the running surface is insufficient or impossible and slipping occurs, which may impede vehicle running. Technical proposals for dealing with such problems have been made.

  For example, Patent Document 1 listed below includes a pair of hook members that engage with each side end portion of a crawler belt as a slip prevention device attached to a crawler for a vehicle, a chain that connects the hook members to each other, And a protrusion member formed so as to project from the upper surface of the lug and linked to the hook member, and a connection link for connecting the chain in a severable manner is provided in the middle of the chain. .

Japanese Patent Application Laid-Open No. 10-297556 “Anti-skid tool for vehicle crawlers” (Japanese Patent No. 3272264)

However, the anti-skid tool disclosed in the document has the following problems.
A) The anti-skid device that is locked to both ends and mounted in parallel with the lug or concave part can be expected to have a certain anti-slip effect in the vehicle running direction, which is the orthogonal direction, but in the parallel direction. On the other hand, the anti-slip effect is weak. That is, it is weak against skidding.
B) Therefore, the anti-slip effect is weak even in an oblique direction having a parallel component.
C) Therefore, it is possible to obtain a certain anti-skid effect on a horizontal rough road, but it is stable in the case where various slope components are included in one place such as a mountainous area or in the traveling direction. The anti-slip effect cannot be obtained.

D) Since the crawler belt is locked by two hook members per one end, mud and snow are entangled between the chains, easily clogging, forming a lump, and eventually the crawler grounding surface becomes flat. It is easy and a sufficient anti-slip effect cannot be obtained.
E) Since the anti-slip effect is due to only two protruding members, it is insufficient and a more complete effect is desired.
F) The overall structure is complicated and the handling method is complicated accordingly.

  Therefore, the problem to be solved by the present invention is to eliminate such problems of the prior art, and can deal with not only horizontal rough roads but also any bad roads, and the anti-slip effect can be obtained stably and sufficiently, and handling is also possible. It is an object of the present invention to provide a simpler and more practical non-slip structure of a vehicle crawler.

  As a result of studying the above problems, the inventor of the present application has formed a single member that is formed in a plate shape around each side end portion of the member that is locked to the crawler belt body, and by providing more parts that exhibit an anti-slip function, etc. Based on this finding, the present inventors have completed the present invention. That is, the invention claimed in the present application, or at least the disclosed invention, as means for solving the above-described problems is as follows.

[1] An anti-slip structure in a vehicle crawler comprising a loop-shaped belt body, a plurality of convex lugs provided on the belt body, and a concave strip formed between the lugs, The anti-slip structure includes two plate-like hook structures that are engaged with the respective side end portions of the belt, a connecting structure that connects the plate-like hook structures, and a braking means for preventing the crawler from slipping. And the brake means is provided on the plate-like hook structure, and the connecting structure itself functions as the brake means.
[2] The anti-slip structure for a crawler for a vehicle according to [1], wherein the braking means on the plate-like hook structure is a protrusion.
[3] The anti-skid structure for a vehicle crawler according to [1] or [2], wherein two or more braking means on the plate-like hook structure are provided.

[4] The anti-slip structure for a crawler for a vehicle according to [3], wherein one of the braking means is provided at an outer end portion when the plate-like hook structure is used.
[5] The anti-slip structure for a vehicle crawler according to [3], wherein one of the braking means is provided at an outermost end of the plate-like hook structure.
[6] As described in [5], an end portion of a ¬ shaped (key-shaped) portion that constitutes a locking portion related to the plate-like hook structure forms the braking means. Anti-slip structure for vehicle crawlers.
[7] The anti-slip structure for a crawler for a vehicle according to [4], wherein one of the braking means is provided on an inner end side when the plate-like hook structure is used.
[8] The vehicle according to any one of [1] to [7], wherein at least one of the braking means is provided with at least one of a concave portion and a convex portion. Anti-slip structure for crawler.

[9] The plate-like hook structure is formed in a shape so as to cover one or a plurality of convex portions in the belt, [1] to [8], Anti-slip structure for vehicle crawlers.
[10] The anti-slip structure for a vehicle crawler according to any one of [1] to [9], wherein the connection structure is a chain.
[11] The anti-slip structure for a vehicle crawler according to [10], wherein the chain is only one.
[12] The vehicle crawler according to any one of [1] to [11], wherein the connection structure is provided in each plate-like hook structure so as to be engaged with each other. Anti-slip structure.
[13] The anti-slip structure for a crawler for a vehicle according to [12], wherein the connecting structures on the plate-like hook structures are connected to each other by another connecting member.

[14] A plate-like hook structure for constituting the anti-slip structure for a vehicle crawler according to any one of [1] to [13].
[15] For use in anti-slip in a vehicle crawler comprising a loop-shaped belt body, a plurality of convex lugs provided on the belt body, and a concave strip formed between the lugs. A plate-like hook structure that can be locked to a side end portion of a belt, and at least the outermost end thereof is provided with a braking means for preventing the crawler from slipping, and is a plate-like Hook structure.
[16] The end of the ¬-shaped (key-shaped) portion that constitutes the locking portion related to the plate-like hook structure forms the braking means, Plate-like hook structure.
[17] The plate-like hook structure according to [15] or [16], wherein the braking means is provided with at least one of a concave portion and a convex portion.
[18] A vehicle crawler anti-slip method, wherein the vehicle crawler anti-slip structure according to any one of [1] to [13] is mounted on a target vehicle crawler.

  The vehicle crawler anti-slip structure, the plate-like hook structure and the vehicle crawler anti-slip method of the present invention are configured as described above, and according to this, the crawler equipment used in agriculture, forestry, civil engineering, construction, etc. In a vehicle, a stable and sufficient crawler anti-slip effect can be obtained not only on a horizontal rough road but also on every bad road such as mud, snow and freezing. In addition, it is easier to handle and practical than the prior art.

  In addition, according to the anti-slip structure of the vehicle crawler of the present invention, a sufficient anti-slip effect can be obtained not only in the vehicle traveling direction but also in other directions. That is, it is strong against both sideslip and slip in an oblique direction. Therefore, a stable and sufficient anti-slip effect can be obtained even in a case where various slope components are included in one place such as a mountainous area or in the traveling direction.

  Further, according to the anti-slip structure of the crawler for a vehicle of the present invention, since the locking to the crawler belt body is made by only one plate-like hook structure per one side end, mud and snow as in the prior art are prevented. There is no problem of entanglement, clogging, and the contact surface of the crawler tends to be flat, and a sufficient anti-slip effect can be obtained continuously.

  Furthermore, according to the anti-slip structure of the vehicle crawler of the present invention, the coupling structure itself functions as a braking means together with one or a plurality of braking means provided on each plate-like hook structure. Anti-slip effect is obtained. In addition, the anti-slip structure of the present invention has a simple configuration basically consisting of two plate-like hook structures and a connecting structure, and is advantageous in terms of manufacturing and handling, and is highly practical.

It is explanatory drawing which shows the structural example of the slip prevention structure of the crawler for vehicles (before connection). It is explanatory drawing which shows the structural example of the slip prevention structure of the crawler for vehicles (after connection). It is explanatory drawing which shows another structural example of the anti-slip | skid structure of this invention. It is principal part explanatory drawing which shows another structural example of the anti-slip | skid structure of this invention. It is explanatory drawing which shows the structure of the plate-shaped hook structure about another structural example of the anti-slip | skid structure of this invention. It is a top view which shows the state which mounted | wore the crawler with the slip prevention structure shown in FIG. It is VI-VI arrow sectional drawing of FIG. It is VII-VII arrow sectional drawing of FIG. It is a VIII arrow side view of FIG.

It is a photograph figure of the state with which this invention Example was mounted | worn to the crawler (from the front). It is a photograph figure of the state with which this invention Example was mounted | worn to the crawler (from the side). The following is a diagram showing the appearance of the embodiment of the present invention. It is a front view of the Example of a connection state. FIG. 12 is a rear view of FIG. 11. FIG. 12 is a left and right side view of FIG. 11 (common). It is a top view of FIG. FIG. 12 is a bottom view of FIG. 11. It is a perspective view from the upper left front of FIG. It is a perspective view from the lower right rear of FIG. It is a perspective view from the upper left front of the plate-like hook structure on the right side. It is a perspective view from the upper right front of the plate-like hook structure on the left side.

Hereinafter, the present invention will be described in detail with reference to the drawings.
1A and 1B are explanatory views showing a configuration example of the anti-slip structure of a crawler for a vehicle. FIG. 1A shows a state before connection, and FIG. 1B shows a state after connection. As shown in these figures, the anti-slip structure 50 for a vehicle crawler according to the present invention includes a loop-shaped belt body, a plurality of convex lugs provided on the belt body, and a concave strip formed between the lugs. The anti-slip structure for the vehicle crawler includes two plate-like hook structures 10 and 20 that are engaged with the respective side end portions of the belt, and a connection structure 30 that connects the plate-like hook structures 10 and 20. And a brake means for preventing the crawler from slipping. The brake means is configured such that the connecting structure 30 itself functions as the brake means in addition to the brake means 14 and 24 provided on the plate-like hook structure. It is assumed that the main structure is that

  In the figure, the plate-like hook structures 10 and 20 are provided with one braking means 14 and 24, respectively. However, the number of braking means provided is not limited to this, and a plurality of braking means are provided. Also good. Further, the braking means 14 and the like on the plate-like hook structures 10 and 20 sufficiently function by being simply formed as protrusions as shown. In addition, the specific shape of a projection part is not limited. That is, not only the simple convex shape shown in the figure but also another shape may be used.

  With this configuration, the anti-slip structure 50 is configured such that the plate-like hook structures 10 and 20 are locked by the locking portions 17 and 27 at the respective side end portions of the loop-shaped belt body of the vehicle crawler. The structures 10 and 20 are mounted on the band while being connected by the connecting structure 30. When the vehicle is run in the mounted state, the braking means 14 and 24 on the plate-like hook structure and the connecting structure 30 that similarly functions as the braking means bite into the running surface (ground) reliably and strongly, Even if it is a rough road due to snow and freezing in the state, or in a case where various slope components are included in one place such as a mountainous area or in the running direction, it does not skid and is stable and sustainable In addition, a sufficient anti-slip effect can be obtained.

FIG. 2 is an explanatory view showing another configuration example of the anti-slip structure of the present invention.
The connection structure in the anti-slip structure may be configured so as to be independent from the respective plate-like hook structures 10 and 20 as in the connection structure 30 in the configuration example of FIG. A configuration in which the plate-like hook structure 210 is fixed in advance as in the connection structure 230 shown in the example of FIG. In addition, as shown in each drawing, the connection method between the connection structure 30 and the like and the plate-like hook structure 10 and the like is as follows. It can be set as the system which connects the site | part 13 grade | etc., With an appropriate method. For example, an annular hook or the like. Regardless of this, as long as it is a means that can reliably and stably connect the two plate-like hook structures 10 and 20, any method including a system as in an embodiment described later may be used.

  FIG. 3 is a main part explanatory view showing still another configuration example of the anti-slip structure of the present invention. As shown in the figure, two or more braking means on the plate-like hook structure 310 of the present non-slip structure can be provided as described above. In the example shown in the figure, two braking means 314 and 315 are provided. Of course, three or more braking means may be provided. Moreover, it is as above-mentioned that it is not limited to a shape.

  When a plurality of braking means are provided for each plate-like hook structure, as shown in the figure, one is provided like a braking means 314 at the outer end when the plate-like hook structure 310 is used, and one is on the inner end side. It is recommended to provide the same as the braking means 315. In the state where the anti-slip structure is mounted on the crawler, a connecting structure that functions as a braking means is located at the center of the entire structure, but the braking effect in all directions (the effect of biting on the running surface) is obtained better. For this reason, it is effective to appropriately separate the respective braking means.

FIG. 4 is an explanatory view showing the configuration of the plate-like hook structure of still another configuration example of the anti-slip structure of the present invention. Also,
FIG. 5 is a plan view showing a state in which the anti-slip structure shown in FIG.
6 is a cross-sectional view taken along arrow VI-VI in FIG.
7 is a cross-sectional view taken along arrow VII-VII in FIG.
FIG. 8 is a side view taken along the line VIII in FIG. In addition, in each of these drawings, the connecting structure 430 and its connecting part are conceptually shown, and are not limited to the illustrated forms.

  As shown in each figure, the plate-like hook structure 410 etc. of the anti-slip structure 450 has a shape provided with a covering portion 418 etc. so as to cover one or more convex portions (convex lugs) C8 in the band C. Is formed. Thus, since the plate-like hook structure 410 and the like are attached to the band C in a state where the covering portion 418 and the like cover the convex portion C8 of the band C, a reliable and stable mounting state is maintained.

  A chain can be suitably used as the connection structure 430 and the like. Of course, as long as the two plate-like hook structures 410, 420, etc. can be reliably, stably and firmly connected, and can function as braking means, the chain is not limited. It can be said that the connection structure according to the above is one of the most suitable from the viewpoints of operational effects and cost.

  Further, as in the anti-skid tool of the above-mentioned document disclosure technique, a complicated configuration in which a chain is provided on each hook member and they are connected by a connecting link is not necessary in the present invention. The anti-slip structure 450 of the present invention can function as the connection structure 430 or the like with only one chain. Moreover, by connecting with a single chain, there is no entanglement of snow, ice, etc., and therefore no clumps are generated, preventing work interruptions or removal of efficiency to remove them. Can be performed continuously and smoothly.

  The aspect of the connection structure according to the anti-slip structure of the present invention is not limited to the aspect independent of the plate-like hook structure (FIGS. 1A and 1B) and the aspect attached to one of the plate-like hook structures (FIG. 2). That is, although not shown in the drawings, a connection structure may be provided for each plate-like hook structure, and these may be configured to engage with each other. In this case, the connection structures may be connected directly or may be connected by another connecting member.

  The plate-like hook structure itself that can or can constitute the anti-slip structure of the present invention described above is also within the scope of the present invention. Moreover, the materials and specifications of the anti-slip structure of the vehicle crawler and the plate-like hook structure according to the present invention are not particularly limited. In short, any other known material can be used as long as it is a material having physical properties that can be mounted on a crawler for a vehicle and maintain a sufficient anti-slip function. Also, the size and other specifications can be appropriately designed according to the crawler specifications.

  An anti-slip method in which the anti-slip structure for a vehicle crawler described above is mounted on a target vehicle crawler is also within the scope of the present invention. By using a plurality of anti-slip structures mounted on one crawler, the intended purpose of the present invention can be sufficiently achieved. The number of mounted units per crawler is preferably 6 or more as will be described later. In addition, it is desirable that the anti-slip structures are equidistant or substantially equidistant (equal or substantially equal). This is because the effect is more stable and reliable.

Examples of the present invention will be briefly described below, but the present invention is not limited thereto.
<Anti-slip structure of vehicle crawler and anti-slip method using the same>
9 and 10 are photographic views of the present embodiment mounted on a crawler, respectively, from the front and from the side. The target for installation was a forestry vehicle. When wood was loaded in such a state and traveled on muddy roads and snowy roads in mountainous areas, a sufficient anti-slip effect including prevention of skidding was obtained. Moreover, during running, mud and snow were not entangled or clogged with the anti-slip structure (tool), and an extremely stable anti-slip effect could be obtained. In the example shown in FIGS. 9 and 10, an example in which eight anti-slip structures are attached to each of the left and right crawlers is shown. The eight anti-skid structures are mounted equally or substantially uniformly with respect to the entire length of the crawler, and in this embodiment, the anti-slip structure always functions at four locations on the traveling road surface. An anti-slip effect was obtained.

  11-17 is a figure which shows the external appearance form of an Example of this invention, and is the front view of a connection state of an Example, a rear view, a side view (right and left common), a top view, a bottom view, and a perspective from the upper left front. It is a perspective view from the lower right rear figure. FIG. 18 is a perspective view from the upper left front of the plate hook structure on the right side, and FIG. 19 is a perspective view from the upper right front of the plate hook structure on the left side. As shown in these drawings, the vehicle crawler anti-slip structure 550 of this embodiment includes two plate-like hook structures 510 and 520 that are engaged with each side end of a crawler belt (not shown), A connecting structure 530 for connecting the plate-like hook structures 510 and 520 and a braking means for preventing the crawler from slipping are provided. The braking means is provided on the plate-like hook structures 510 and 520. In addition to 514 and 524, the connecting structure 530 itself is also configured to function as braking means. The braking means 514 and 524 have been confirmed to function sufficiently by being simply formed as protrusions as in this embodiment, but the specific shape of the protrusions is not limited as described above. That is, not only the simple convex shape shown in the figure but also another shape may be used.

  With this configuration, the anti-slip structure 550 includes the plate-like hook structures 510 and 520 that are locked to the respective side end portions of the loop-shaped belt body of the vehicle crawler by the locking portions 517 and 527, and the plate-like hooks. The structures 510 and 520 are connected to each other by a connecting structure 530 and mounted on a band body. Actually, when the vehicle is run in a state of being mounted in a non-disclosure state, the braking means 514 and 524 on the plate-like hook structure and the connecting structure 530 that similarly functions as the braking means are securely and securely on the running surface (ground). Even if it is a bad road due to strong bite, mud, snow in various states, freezing, etc., even if it includes various slope components in one place such as a mountainous area or in the running direction, Stable, persistent and sufficient anti-slip effect could be obtained without skidding.

  As shown in the drawings, the braking means on the plate-like hook structures 510 and 520 of the anti-slip structure 550 of this embodiment are not only the braking means 514 and 524 on the inner end side but also the braking means 515 on the outer end part. 525 are also provided. As described above, when the anti-slip structure is mounted on the crawler, the connecting structure 530 functioning as the braking means is located in the central portion of the entire anti-slip structure by the configuration in which the respective braking means are appropriately separated from each other. The braking effect with respect to the direction, that is, the biting effect with respect to the running surface can be obtained better.

  In particular, the braking means 515 and 525 at the outer end portion having a protruding shape further improve the biting effect on the running surface, and is more resistant to side-slip and slip in an oblique direction. In particular, in the configuration in which the braking means 515 and 525 are provided at the outermost ends of the plate-like hook structures 510 and 520 as in the present embodiment, the effect is great.

  In the present embodiment, the end portions of the ¬-shaped (key-shaped) portions constituting the locking portions 517 and 527 of the plate-like hook structures 510 and 520 form the braking means 515 and 525 as they are. is there. Such a structure is simple in form and advantageous in manufacturing, and is also preferable in design. It goes without saying that a high biting effect on a high running surface, a side slip, and a high anti-slipping effect against slipping in an oblique direction can be obtained.

  Furthermore, in this embodiment, the braking means 515, 525 is provided with one recess, and the three-dimensional shape of the end is not flat. Such a configuration further enhances the braking effect and the anti-slip effect, and can obtain a further biting effect, a side slip, and an anti-slip effect against slipping in an oblique direction.

  Needless to say, the braking means at the outer end is not limited to the form of the braking means 515, 525 of this embodiment. The three-dimensional shape may be a convex portion instead of the concave portion, or may be both, and the specific shape of the concave portion and the convex portion and the number of these provided are not limited.

  In addition, regardless of the configuration of the present embodiment, not only those on the plate-like hook structure and those using the connecting means, but in at least one of the braking means of the present invention, at least one of the concave portion or the convex portion is one. Even a configuration provided at more than one place is within the scope of the present invention.

  As shown in the drawings, the plate-like hook structures 510 and 520 of the anti-slip structure 550 of this embodiment are covered with a covering portion so as to cover one or a plurality of convex portions (convex lugs not shown) in the crawler belt. 518 and 528 are formed in a shape. As a result, the plate-like hook structure 510 and the like are attached to the band while the covering portion 518 and the like cover the convex portion of the band C, and thus a reliable and stable mounting state can be maintained.

  The connection structure 530 of the anti-slip structure 550 of this embodiment is a chain that is fixed in advance to one plate-like hook structure 520 as shown in FIGS. It was confirmed that the use of a chain was sufficient from the viewpoint of operation and cost. And as shown in each figure, the connection method between the connection structure 530 and the plate-like hook structure 510 includes a connection part 531 of the connection structure 530 and a connection part 513 on the plate-like hook structure 510 side. This is a method of connecting by a connecting member 56.

  Specifically, the connecting portion 531 which is the ring at the end of the chain is made to enter inside the opening end portion of the connecting portion 513 having a U-shape, and the pin-shaped connecting member 56 is connected to the connecting portion 513, In this method, the connection portion 531 is inserted and fixed to be connected. With this connection method, the anti-slip structure 550 of this embodiment is mounted on the crawler in a state where both plate-like hook structures 510 and 520 are securely and firmly connected, and a sufficient anti-slip effect can be obtained in the work. . In the perspective view of one plate-like hook structure 510 shown in FIG. 19, the connecting member 56 is attached to the connecting portion 513.

  The anti-slip structure 550 of the present embodiment does not require a complicated configuration as in the prior art anti-slip tool, and can be completely functioned by only one chain as the connection structure 530. Moreover, there was no occurrence of lumps of snow, ice, etc. due to the connection method using a single chain. Therefore, the work was not interrupted to remove the lump, and the work efficiency was not lowered at all, and the smooth work could be carried out continuously.

The number of anti-slip structure mounted per crawler will be further described.
An experiment was conducted on the number of pieces mounted on the left and right crawlers to obtain a sufficient anti-slip effect. As a result, when four pieces were attached so that the anti-slip at two places always functions on the road surface side, the anti-slip effect was not necessarily sufficient. On the other hand, when six pieces were mounted on each crawler and the anti-slip function at three locations always functions on the road surface side, a sufficient anti-slip effect could be obtained.

  Therefore, it is desirable to install six or more anti-slip structures of the present invention per crawler so that the anti-slip function can always function at three or more locations on the road surface. Further, it is desirable that the anti-slip structures are mounted as evenly as possible (equal intervals).

  As described above, the anti-slip structure of the present invention can be securely and firmly locked and fixed to the crawler as described above, and it is unlikely that it will fall off during operation. However, it is possible for one to fall off due to an unexpected impact on a rough road or the like. Actually, when 6 pieces were attached to each crawler, the vehicle traveled on a considerably rough road, and when one was forcibly dropped, the subsequent anti-slip effect was clearly reduced. From this, it was considered that it was desirable to maintain a state in which 6 pieces were always attached to each crawler.

  Therefore, assuming that a dropout may occur, more than six anti-slip structures may be attached so that the anti-slip function is always maintained at three or more locations on the traveling road surface. For example, as in the embodiment shown in FIG. 9 and the like, it is a method of attaching eight to each crawler. For this purpose, even if there are seven, for example, a reasonable compensation action can be obtained, but from the viewpoint of obtaining a more stable anti-slip effect by arranging each anti-slip structure as evenly as possible. It is desirable to use a mounting method in which the number of slips is eight rather than seven and always prevents slipping at four locations on the road surface as long as no dropout occurs. Of course, if it is 9 or 10 or more, you can expect more advanced anti-slip effect and stability improvement assuming drop-off, but normally, the installation method of 8 on each side is fine, The effect without can be obtained.

  According to the vehicle crawler anti-slip structure, the plate-like hook structure, and the vehicle crawler anti-slip method of the present invention, stable and sufficient crawlers including prevention of skidding on any bad roads such as mud, snow, freezing, etc. The anti-slip effect can be obtained. In addition, it is easier to handle and practical than the prior art. Therefore, the invention is highly industrially applicable in the fields of agriculture, forestry, civil engineering, construction, and other related fields.

10, 20, 210, 220, 310, 410, 420 ... plate-like hook structures 13, 23, 223, 413, 423 ... connection portions 14, 24, 214, 224, 314, 315, 414 of the plate-like hook structures, 415, 424, 425 ... Braking means (on plate-like hook structure)
17, 27, 217, 227, 317, 417, 427... Locking portion 30, 230, 430... Connection structure 31, 32, 232. 550A, 550B, 550C, 550D, 550E, 550F, 550G, 550H ... Anti-slip structure for vehicle crawler C ... Band C8 ... Convex part (convex lug)
C9 ... concave line

510, 520... Plate-like hook structure 513... Connection portions 514, 524, 515, 525... For plate-like hook structure Braking means (on plate-like hook structure)
517, 527 ... locking part 530 ... connection structure 531 ... connection part 518, 528 ... covering part 56 ... connection member of connection structure

Claims (18)

An anti-slip structure for a vehicle crawler comprising a loop-shaped band, a plurality of convex lugs provided on the band, and a concave strip formed between the lugs, the anti-slip structure Comprises two plate-like hook structures that are engaged with the respective side end portions of the belt, a connection structure that connects the plate-like hook structures, and a braking means for preventing the crawler from slipping. An anti-slip structure for a crawler for a vehicle, wherein the braking means is provided on the plate-like hook structure, and the connecting structure itself functions as the braking means. 2. The anti-slip structure for a vehicle crawler according to claim 1, wherein the braking means on the plate-like hook structure is a protrusion. The anti-slip structure for a crawler for a vehicle according to claim 1, wherein two or more braking means on the plate-like hook structure are provided. 4. The anti-slip structure for a vehicle crawler according to claim 3, wherein one of the braking means is provided at an outer end portion when the plate-like hook structure is used. The anti-slip structure for a vehicle crawler according to claim 3, wherein one of the braking means is provided at an outermost end of the plate-like hook structure. 6. The crawler for a vehicle according to claim 5, wherein an end portion of a ¬-shaped (key-shaped) portion constituting a locking portion related to the plate-like hook structure forms the braking means. Anti-slip structure. 5. The anti-slip structure for a vehicle crawler according to claim 4, wherein one of the braking means is provided on an inner end side when the plate-like hook structure is used. The anti-slip of a crawler for a vehicle according to any one of claims 1 to 7, wherein at least one of the concave portion and the convex portion is provided in at least one of the braking means. Construction. 9. The vehicular crawler slip according to claim 1, wherein the plate-like hook structure is formed in a shape that covers one or a plurality of convex portions of the belt body. Stop structure. The anti-slip structure for a vehicle crawler according to any one of claims 1 to 9, wherein the connection structure is a chain. The anti-slip structure for a crawler for a vehicle according to claim 10, wherein only one chain is provided. The anti-skid structure for a crawler for a vehicle according to any one of claims 1 to 11, wherein the connecting structure is provided in each plate-like hook structure so as to be engaged with each other. The anti-slip structure for a crawler for a vehicle according to claim 12, wherein the connecting structures on the plate-like hook structures are connected to each other by another connecting member. A plate-like hook structure for constituting the anti-slip structure of a vehicle crawler according to any one of claims 1 to 13. A belt for use in anti-slip in a vehicle crawler comprising a loop-shaped belt, a plurality of convex lugs provided on the belt, and a concave portion formed between the lugs. A plate-like hook structure capable of being locked to a side end portion, wherein at least an outermost end thereof is provided with a braking means for preventing the crawler from slipping. The plate-like hook according to claim 15, wherein an end portion of a ¬-shaped (hook-like) portion constituting a locking portion related to the plate-like hook structure forms the braking means. Construction. The plate-like hook structure according to claim 15 or 16, wherein at least one of a concave portion or a convex portion is provided in the braking means. 14. A vehicle crawler anti-slip method, wherein the vehicle crawler anti-slip structure according to claim 1 is mounted on a target vehicle crawler.