CN109789902B

CN109789902B - Elastic crawler belt

Info

Publication number: CN109789902B
Application number: CN201880003156.1A
Authority: CN
Inventors: 崔镕宰
Original assignee: Individual
Current assignee: Cui Rongzai
Priority date: 2017-03-06
Filing date: 2018-02-22
Publication date: 2021-12-03
Anticipated expiration: 2038-02-22
Also published as: CN109789902A; KR20200013007A; JP6779583B2; JP2018144633A; KR20180102003A

Abstract

The invention provides an elastic crawler which can effectively prevent vibration and cracking. The elastic crawler according to the present invention is an elastic crawler in which drive teeth are provided on an outer peripheral side of a crawler body, and vibration-proof teeth are provided, both end sides of the vibration-proof teeth being arranged so as to be connected to or close to the drive teeth adjacent in a circumferential direction and corresponding to a wheel rotational movement region on an inner peripheral side of the crawler body. The outer periphery of the crawler belt body is provided with a left row and a right row of teeth, and the driving teeth and the shockproof teeth are alternately arranged along the circumferential direction of the crawler belt body through the teeth. The shockproof teeth are approximately equal to the driving teeth in height.

Description

Elastic crawler belt

Technical Field

The present invention relates to an elastic crawler belt used for crawler traveling mechanisms of transport vehicles, agricultural machinery, snow blowers, construction machinery, and the like.

Background

Japanese patent laying-open No. 54-83235 relates to an elastic crawler for a crawler travel mechanism of a transport vehicle or the like, in which vibration-proof teeth are arranged between driving teeth adjacent in a circumferential direction on a circumferential side of a crawler body in order to reduce vibration during traveling and to prevent cracks from occurring.

The elastic crawler belt is provided with a driving wheel combination part at the center of the width direction of the inner periphery side of the crawler belt body, driving teeth are respectively arranged at the two sides of the width direction of the driving wheel combination part in a left row and a right row at the outer periphery side of the crawler belt body, and shockproof teeth are arranged between the adjacent driving teeth in the circumferential direction. The left and right driving teeth are provided with inner end zigzag portions zigzag along the circumferential direction so as to correspond to wheel transmission areas (i.e., roller rollers) on both sides of a driving wheel coupling portion of the crawler body, the vibration-proof teeth are arranged along a central portion in the width direction, and both end portions in the width direction are arranged so as to correspond to the transmission areas of the respective wheels.

Disclosure of Invention

In the conventional elastic crawler, the inner end bent portions of the respective driving teeth are provided so as to correspond to the left and right wheel transmission regions, and the both end portions of the vibration-proof teeth are provided between the inner end bent portions of the circumferentially adjacent driving teeth, so that it is possible to further prevent vibration generated by the rotational motion of the wheel rotational motion region by moving the rotating wheel during traveling and cracks generated by the bending of the crawler body, compared to the case where there are no inner end bent portions and vibration-proof teeth.

However, in the conventional elastic crawler, the inner end bent portions of the driving teeth and the anti-vibration teeth are provided so as to correspond to the wheel rotation movement region, and there is a large interval in the circumferential direction between the driving teeth and the anti-vibration teeth, so that it is difficult to sufficiently prevent the occurrence of vibration and cracks.

In other words, the wheel is moved to rotate during traveling, and the elastic crawler belt is guided in the circumferential direction. However, when the movable rotary wheel rotates the wheel rotation movement region, the movable rotary wheel rises along the teeth of the driving teeth and the anti-vibration teeth at any part of the teeth, and the movable rotary wheel reversely falls at a part of the interval where the driving teeth and the anti-vibration teeth are not present. Therefore, there is a problem that the moving rotor is frequently repeatedly moved up and down even when the moving rotor travels on a flat road surface, or the occurrence of vibration cannot be sufficiently prevented.

Further, since the elastic crawler belt is rotated in the circumferential direction while being wound around the driving wheel and the driven wheel, if there is a gap between the driving teeth and the vibration-proof teeth, cracks are likely to occur from the gap to the crawler belt body.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide an elastic crawler belt which can effectively prevent occurrence of vibration and cracks.

In the elastic crawler according to the embodiment of the present invention, two rows of teeth are provided on an outer peripheral side of a crawler body in a width direction of the crawler body, each of the teeth has a plurality of drive teeth arranged at substantially equal intervals in a circumferential direction of the crawler body, each of the teeth has a vibration prevention tooth arranged between the drive teeth adjacent in the circumferential direction and corresponding to a wheel rotational movement region on an inner peripheral side of the crawler body, the drive teeth of each of the teeth have an inclined shape in which an inner end portion side in the width direction is positioned on one side in the circumferential direction and an outer end portion side in the width direction is positioned on the other side in the circumferential direction, and the vibration prevention teeth of each of the teeth are connected to a connection portion on one side in the circumferential direction corresponding to the wheel rotational movement region, And a connecting portion connected to the other circumferential side corresponding to the wheel rotational motion region, wherein the connecting portion on one circumferential side is located further outward in the width direction than the connecting portion on the other circumferential side in the tooth row, and the vibration-proof teeth are each formed in an inclined shape in a direction opposite to the drive teeth.

Preferably, each of the anti-rattle teeth is substantially flush with each of the drive teeth. Preferably, the respective tooth rows substantially form line symmetry along the width direction. The two tooth rows enable the driving teeth and the shockproof teeth to be staggered by half pitch along the circumferential direction. Of the drive teeth of the respective tooth rows, inner end portions of the drive teeth of one side of the tooth row may be located between inner end portions of the drive teeth adjacent in the circumferential direction of the other side of the tooth row. The inner end portions of the drive teeth of the respective tooth rows may overlap each other in the width direction. The inner end portions of the drive teeth of the respective tooth rows may be arranged so as to correspond to a central wheel rotational movement region provided between the coupling portions for the drive wheels of the two rows in the width direction, and the anti-vibration teeth may be arranged so as to correspond to a wheel rotational movement region provided outside the coupling portions of the two rows.

The elastic crawler according to the embodiment of the invention has the advantage of effectively preventing the occurrence of vibration and cracks.

Drawings

Fig. 1 is a side view of a crawler travel mechanism using an elastic crawler belt according to embodiment 1 of the present invention.

Fig. 2a is a cross-sectional view of the elastic crawler according to embodiment 1 of the present invention, which is on the driving wheel side.

Fig. 2b is a cross-sectional view of the elastic crawler according to embodiment 1 of the present invention, taken along the driven wheel side.

Fig. 2c is a cross-sectional view of the elastic crawler according to embodiment 1 of the present invention, which is on the side of the moving rotating wheel.

Fig. 3 is a perspective view of the elastic crawler according to embodiment 1 of the present invention.

Fig. 4 is a plan view of the outer peripheral side of the elastic crawler according to embodiment 1 of the present invention.

Fig. 5 is a sectional view taken along line a-a of fig. 4.

Fig. 6 is a rear view of the inner peripheral side of the elastic crawler according to embodiment 1 of the present invention.

Fig. 7 is a side view of a crawler travel mechanism using an elastic crawler belt according to embodiment 2 of the present invention.

Fig. 8a is a cross-sectional view of the elastic crawler according to embodiment 2 of the present invention, which is on the driving wheel side.

Fig. 8b is a cross-sectional view of the elastic crawler according to embodiment 2 of the present invention, taken along the driven wheel side.

Fig. 8c is a cross-sectional view of the elastic crawler according to embodiment 2 of the present invention, which is on the side of the moving rotating wheel.

Fig. 9 is a plan view of the outer peripheral side of the elastic crawler according to embodiment 2 of the present invention.

Fig. 10 is a rear view of the inner periphery of the elastic crawler according to embodiment 2 of the present invention.

Fig. 11 is a plan view of the outer peripheral side of the elastic crawler according to embodiment 3 of the present invention.

Fig. 12 is a plan view of the outer peripheral side of the elastic crawler according to embodiment 4 of the present invention.

Fig. 13 is a sectional view of the elastic crawler of embodiment 4 of the present invention.

Fig. 14 is a bottom view of the elastic track of embodiment 4 of the present invention.

Fig. 15 is a plan view of the outer peripheral side of the elastic crawler according to embodiment 5 of the present invention.

Fig. 16 is a plan view of the outer circumferential side of the elastic crawler according to embodiment 6 of the present invention.

Fig. 17 is a sectional view of an elastic crawler of embodiment 6 of the present invention.

Fig. 18 is a plan view of a main part of the elastic crawler of the 7 th embodiment of the present invention.

Fig. 19 is a sectional view taken along line B-B of fig. 18.

Detailed Description

Hereinafter, preferred embodiments of the elastic crawler of the present invention will be described in detail with reference to the accompanying drawings.

The present invention can be realized in various forms, and is not limited to the embodiments described below.

In the following, in order to clearly explain the present invention, detailed explanation of parts that are not closely related to the present invention is omitted, and in the entire explanation of the present invention, the same reference numerals are given to the same or similar components, and redundant explanation is omitted.

An elastic crawler according to embodiment 1 of the present invention is shown in fig. 1 to 6. As shown in fig. 1 and 2c, a crawler travel mechanism (1) using an elastic crawler according to embodiment 1 of the present invention includes: a drive wheel (2) disposed on the upper side; driven wheels (3) arranged in a pair in front and rear on the lower side; an elastic crawler belt (4) having a crawler belt shape wound around the drive wheel (2) and the driven wheel (3); a plurality of rotating wheels (5) in the front-rear direction move the rotating wheels (5), are arranged between the front and rear driven wheels (3) below the driving wheels (2), and guide the elastic crawler belt (4) in the circumferential direction.

As shown in fig. 1 and 2a, the drive wheel (2) includes: a driving wheel body (6) driving wheel bodies (6a), (6b) which are arranged in the left-right direction at a predetermined interval; and coupling ports (7) that are fixed at substantially equal intervals in the circumferential direction between the wheel bodies (6a), (6b), and the drive wheel (2) is supported by a support frame (not shown in the drawings) in a forward and reverse rotational manner by the drive of a drive source (not shown in the drawings).

As shown in fig. 1 and 2b, the driven wheel (3) includes driven wheel bodies (8a) and (8b), and the driven wheel bodies (8a) and (8b) are arranged in a pair of left and right rotatable bodies and supported by both front and rear end sides of the support frame.

As shown in fig. 1 and 2c, each of the turning wheel (5) moving turning wheels (5) includes turning wheel bodies (9a) and (9b), and the turning wheel bodies (9a) and (9b) are arranged in a pair of left and right sides that can be turned integrally, and are supported by the support frame so as to be able to move up and down.

As shown in fig. 2a to 6, the elastic crawler (4) comprises: a crawler belt body (10) having a belt shape made of an elastic material such as rubber; a coupling section (11) for the drive wheel (2) which is provided on the inner peripheral side of the crawler body (10); tooth rows (12a, 12 b); the crawler belt body (10) is provided with two rows of left and right along the circumferential direction on the outer circumferential side.

The crawler belt body (10) has no core metal, and a plurality of tension members (13) such as steel wires are embedded in the crawler belt body in the width direction. The coupling section (11) is coupled with a coupling port (7) of the drive wheel (2), and is configured by a protrusion protruding from the crawler body (10) toward the inner peripheral side, and a plurality of the coupling ports are provided in a row shape at substantially equal intervals along the circumferential direction at substantially the center in the width direction of the crawler body (10).

As shown in fig. 2a to 2c, 4 and 6, wheel rotational movement regions (14a, 14b) are provided on both the left and right sides of the coupling portion (11) on the inner peripheral side of the crawler body (10), the drive wheel body (6) of the drive wheel (2) drives the wheel bodies (6a, 6b), the driven wheel body (8a, 8b) of the driven wheel (3), and the rotational movement wheel bodies (9a, 9b) of the rotation wheel (5) moving the rotation wheel (5) rotationally move the respective wheel rotational movement regions (14a, 14 b).

As shown in fig. 2a to 4, two rows of left and right rows of teeth (12a, 12b) are disposed on both sides of the track body (10) in the width direction, and a plurality of drive teeth (15) and anti-vibration teeth (16) are alternately disposed in the circumferential direction on each of the rows of teeth (12a, 12 b). The left and right driving teeth (15) are formed into a gently curved arc shape between the inner end (15A) on the center side and the outer end (15B) on the outer side in the width direction of the inner end (15A) in the width direction of the crawler body (10), and the driving teeth (15) are arranged in an inclined shape along the inclined direction with respect to the line segments in the circumferential direction and the width direction of the crawler body (10) so that the inner end (15A) is arranged on one side in the circumferential direction of the crawler body (10) and the outer end (15B) is arranged on the other side in the circumferential direction.

As shown in fig. 4, the left and right tooth rows (12a, 12b) are arranged with a shift 1/2 pitch (half pitch) in the circumferential direction, the inner end portion (15A) of the drive tooth (15) of the other tooth row (12b, 12a) is arranged between the inner end portions (15A) of the drive teeth (15) of the one tooth row (12a, 12b), and the inner end portions (15A) of the drive teeth (15) of the left and right tooth rows (12a, 12b) are arranged to overlap each other by a dimension "X" in the width direction of the crawler body (10). Therefore, the inner end parts (15A) of the driving teeth (15) of the tooth rows (12a, 12b) in two rows on the left and right sides at the central part of the crawler belt body (10) in the width direction are inserted and arranged in an alternating mode.

Each anti-vibration tooth (16) is connected to the drive teeth (15) adjacent in the circumferential direction, and as shown in fig. 3 and 4, is curved in a gentle arc shape like the drive teeth (15), and is arranged in an inclined shape in the direction opposite to the drive teeth (15). As shown in fig. 3 and 4, each anti-vibration tooth (16) is provided with connecting portions (16A) and (16B) at both ends in the circumferential direction of the crawler body (10), one connecting portion (16A) in the circumferential direction is integrally connected to one driving tooth (15) in the circumferential direction, and the other connecting portion (16B) in the circumferential direction is integrally connected to the other driving tooth (15) in the circumferential direction. Each of the vibration-proof teeth (16) is provided such that the entire or a part (at least a part) of the connecting portion (16A, 16B) including each of the connecting portions (16A) is provided with a substantially entire length between the circumferentially adjacent drive teeth (15) within a range corresponding to each of the wheel rotational movement regions (14a, 14B).

Further, each of the vibration-proof teeth (16) is arranged in an inclined shape in the direction opposite to the drive teeth (15) by connecting one side connecting portion (16A) thereof to the vicinity of the outer end portion (15B) in the longitudinal direction so as to correspond to one side drive teeth (15) in the circumferential direction, and connecting the other side connecting portion (16B) to the vicinity of the center in the longitudinal direction (substantially the center, or the inside or outside slightly closer to the center) so as to correspond to the other side drive teeth (15) in the circumferential direction.

As shown in fig. 2a to 5, the driving teeth (15) and the anti-vibration teeth (16) are formed in a belt shape by the same elastic material section as the crawler body (10), and the heights of the heads (15C, 16C) from the crawler body (10) to the driving teeth (15) and the anti-vibration teeth (16) are substantially the same.

The drive teeth (15) are formed in an arc shape that expands the outside of the crawler belt (10) in the width direction, but may be formed in an arc shape in the opposite direction. The driving teeth (15) and the vibration-proof teeth (16) may be formed in a substantially straight shape or a zigzag shape. The width of the tension body (13) is approximately the same as the size between the two ends of the rotating wheel (5) moved by the rotating wheel (5).

In the elastic crawler belt (4) configured as above, the anti-vibration teeth (16) are arranged at both ends so as to correspond to the wheel rotation movement regions (14a, 14b), the anti-vibration teeth (16) are connected to the drive teeth (15) adjacent in the circumferential direction, and the heights of the anti-vibration teeth (16) and the heads (15C, 16C) of the drive teeth (15) and the anti-vibration teeth (16) are substantially the same, so that even when the rotation movement wheels (9a, 9b) for moving the rotation wheel (5) by the rotation wheel (5) rotate the wheel rotation movement regions (14a, 14b) of the crawler belt body (10), the vibration and the like that the rotation wheel (5) moves the rotation wheel (5) in the vertical direction between the drive teeth (15) can be eliminated, and compared with the prior art, the vibration generated during walking can be effectively prevented.

Further, since both ends of the vibration-proof teeth (16) are connected to the circumferentially adjacent driving teeth (15), and the height of the vibration-proof teeth (16) is substantially the same as that of the driving teeth (15), there is an advantage in that cracks can be prevented from occurring in the crawler body (10) in advance, as compared with the conventional art in which the distance between the driving teeth (15) and the vibration-proof teeth (16) is large.

Further, the tooth rows (12a, 12b) of the two right and left rows are shifted by 1/2 pitches (half pitches) in the circumferential direction, and the inner end portions (15A) of the drive teeth (15) of the tooth rows (12b, 12a) of the other side are arranged between the inner end portions (15A) of the drive teeth (15) of the tooth rows (12a, 12b) of the one side, and at the same time, the inner end portions (15A) of the drive teeth (15) of the right and left tooth rows (12a, 12b) are arranged so as to overlap in the width direction of the crawler body (10), so that the length of each drive tooth (15) can be sufficiently secured, and the driving force to the ground side can be sufficiently secured.

Further, since the circumferentially adjacent drive teeth (15) of the respective tooth rows (12a, 12b) of the two left and right rows are connected in the circumferential direction by the vibration preventing teeth (16), not like between the respective drive teeth (15), soil, snow or the like moves to the outer side in the width direction along with the drive teeth (15), but between the drive teeth (15) closer to the inner side than the vibration preventing teeth (16) of the respective tooth rows (12a, 12b) of the two left and right rows, so that soil, snow or the like is inserted. Therefore, the driving force when walking on dry fields, snowfields, etc. can be increased again as compared to the case where there are no vibration-proof teeth (16), the vibration-proof teeth (16) connecting the driving teeth (15) in the circumferential direction.

An elastic crawler of embodiment 2 of the present invention is shown in fig. 7 to 10.

As shown in fig. 7, the crawler travel mechanism (1) is configured such that a plurality of turning wheel (5) moving turning wheels (5) are disposed between a front and rear large-diameter driving wheel (2) and a small-diameter driven wheel (3), and an elastic crawler belt (4) is wound around the turning wheels.

As shown in fig. 8a to 8c and fig. 10, coupling portions (11a) and (11b) of driving wheels (2) are provided in two rows in the left-right direction on the inner peripheral side of a crawler body (10), a rotational movement region (14c) of the wheels is formed between the coupling portions (11a) and (11b) in the two rows, and right-left rotational movement regions (14a) and (14b) are formed outside the coupling portions (11a) and (11 b).

As shown in fig. 8a to 8c and fig. 9, two rows of right and left teeth rows (12a, 12b) are provided on the outer peripheral side of the crawler body (10), as in embodiment 1.

As shown in fig. 8a, the drive wheel (2) includes: a drive wheel body (6) which can rotationally move a central wheel rotational movement region (14 c); and coupling ports (7a, 7b) fixed to both sides of the drive wheel body (6), the coupling ports (7a, 7b) on both sides being coupled to the coupling portions (11a, 11b) in two rows.

As shown in fig. 8b, the driven wheel (3) includes, in a form capable of rotating integrally: a central driven wheel body (8c) which can perform rotary motion on a central wheel rotary motion area (14 c); and outer driven wheels (8a, 8b) that can rotationally move the outer wheel rotational movement regions (14a, 14 b).

As shown in fig. 8c, each of the drive rotors (5) is integrally rotatable and includes: a central rotational movement wheel body (9c) which can rotationally move the central wheel rotational movement regions (14a, 14 b); and outer rotational movement wheel bodies (9a, 9b) which can rotationally move outer wheel rotational movement regions (14a, 14 b). The other constitution is the same as that of embodiment 1.

This crawler travel mechanism (1) can also be implemented in the same manner as in embodiment 1. Particularly, a central wheel rotation movement area (14c) is arranged between the left and right connecting parts (11a, 11b), and although the driving wheel (2), the driven wheel (3) and the rotating wheel (5) move the wheel bodies (6, 8c, 9c) of the rotating wheel (5) to rotate the wheel rotation movement area (14c), inner end parts (15A) of the driving teeth (15) of the tooth rows (12a, 12b) in the left and right rows are arranged in a state of being alternately assembled from the left and right sides on the outer peripheral side of the crawler belt body (10) in a mode of corresponding to the central wheel rotation movement area (14c), so that the vibration can be prevented from being generated on the central wheel rotation movement area (14c) as far as possible.

Figure 11 shows an elastic track of embodiment 3 of the invention.

As shown in fig. 11, the elastic crawler belt (4) has inner ends (15A) of the drive teeth (15) of the one row of teeth (12a), (12b) extended toward the drive teeth (15) of the other row of teeth (12b), (12a) inside the drive teeth (15) of the two rows of teeth (12a), (12b), and the drive teeth (15) of the two rows of teeth are connected to each other in the central wheel rotational movement region (14 c).

As described above, the inner end portion (15A) side of each drive tooth (15) of the tooth rows (12a), (12b) of the right and left rows is made elongated toward the opposite side so that the inner end portion (15A) side of each drive tooth (15) can be connected in a zigzag continuous manner in the circumferential direction in the form of the central wheel rotational movement region (14c) due to the opposite side being connected to the drive tooth (15) in the range corresponding to the central wheel rotational movement region (14 c). Therefore, even if the wheels (8c, 9c) do not restrict the rotation of the central wheel rotation area (14c), the wheels (8c, 9c) do not move up and down, and the vibration can be prevented from occurring during traveling, as in the case of the wheel rotation areas (14a, 14b) on the outer sides.

Furthermore, the drive teeth (15) of the two rows of teeth (12a, 12b) are connected in the circumferential direction at three locations, namely, the center and the outer side in the width direction of the crawler body (10), so that the occurrence of cracks in the crawler body (10) can be further reduced.

Fig. 12 to 14 show an elastic crawler of embodiment 4 of the present invention.

As shown in fig. 12 to 14, in the elastic crawler belt (4), core metals (18) arranged at equal intervals in the circumferential direction and tensile members (13) arranged on the outer peripheral side of the core metals (18) are embedded in a crawler belt body (10). The core metal (18) includes in one piece: a connecting portion (11) provided at the widthwise central portion of the elastic body (10); wing sections (19a, 19b) that extend outward in the width direction of the crawler (10) from both sides of the connecting section (11); and guide projections (20a, 20b) projecting from both sides of the connecting portion (11) toward the inner circumferential side of the crawler body (10).

In the crawler body (10), a coupling hole (20) is formed between coupling portions (11) of a core metal (18), and a coupling protrusion provided outside and behind a drive wheel (2) is coupled to the coupling portions (11) from inside the coupling hole (20). On the inner peripheral side of the crawler body (10), left and right wheel rotation movement areas (14a, 14b) are provided on the outer side of the crawler body (10) in the width direction with respect to the guide projections (20a, 20b), and the wheel rotation movement areas (14a, 14b) are rotated by rotating movement wheels (9a, 9b) and the like of a rotation wheel (5) which is moved by the rotation wheel (5).

The tooth rows (12a, 12b) of the left and right rows are configured such that the drive teeth (15) and the anti-vibration teeth (16) are alternately arranged in the circumferential direction, and the coupling portions (11) and the coupling holes (20) are arranged in a narrow manner substantially in line symmetry along both sides of the crawler body (10) in the width direction. The left and right driving teeth (15) are formed into a gently curved arc shape between an inner end portion (15A) near the coupling hole (20) and an outer end portion (15B) on the outer side in the width direction, the inner end portion (15A) is positioned on one side in the circumferential direction of the crawler body (10), and the outer end portion (15B) is positioned on the other side in the circumferential direction. The drive teeth (15) are provided at equal intervals along the circumferential direction so as to correspond to the core metal (18), and the wing sections (19a, 19b) of the core metal (18) are arranged in a cross shape at substantially the center in the longitudinal direction of the drive teeth (15).

The vibration-proof teeth (16) connect the driving teeth (15) adjacent to each other in the circumferential direction at positions corresponding to the rotational motion regions (14a, 14B) of the wheels, and are inclined in the opposite direction to the driving teeth (15), and the connecting parts (16A, 16B) of the connecting parts (16A) at both ends are connected to the driving teeth (15) at both sides in the circumferential direction. Furthermore, the vibration-proof teeth (16) preferably converge substantially entirely within the width of the wheel rotational movement regions (14a, 14b), but may be bent such that the main portions thereof correspond to the wheel rotational movement regions (14a, 14 b). In this case, the vibration-proof teeth (16) are arranged to be slightly offset outward with respect to the centers of the wheel rotational movement regions (14a, 14 b).

Thus, the elastic crawler belt (4) having the core metal (18) embedded in the crawler belt body (10) can also obtain the same effect as that of each of the embodiments including embodiment 1, in which the vibration-proof teeth (16) are disposed so as to correspond to the respective wheel rotation driving regions (14a, 14b), thereby preventing the occurrence of vibration or the like during traveling, and the vibration-proof teeth (16) connect the circumferentially adjacent driving teeth (15).

Figure 15 shows an elastic track of embodiment 5 of the invention.

As shown in fig. 15, the elastic crawler belt (4) is configured such that the driving teeth (15) and the anti-vibration teeth (16) of the two rows of teeth (12a, 12b) are arranged 1/2 pitches apart in the circumferential direction. The other structure is substantially the same as that of embodiment 3.

In the elastic crawler belt (4) having the core metal (18) embedded in the crawler belt body (10), the same effects as those of embodiment 4 can be obtained even when the driving teeth (15) and the anti-vibration teeth (16) of the two rows of teeth (12a, 12b) are disposed with a pitch of 1/2 offset in the circumferential direction.

Fig. 16 and 17 show an elastic crawler according to embodiment 6 of the present invention.

As shown in fig. 16 and 17, in the elastic crawler 4, a connecting portion 15D is provided at the center in the width direction of the crawler body 10, and the connecting portion 15D connects inner end portions 15A of the driving teeth 15 of the two rows of the right and left

teeth rows

12a and 12 b.

The left and right driving teeth (15) can be integrally connected to a central connecting portion (15D). In addition, when the left and right driving teeth (15) are formed integrally, as indicated by a dotted line (two point chain) outside the left and right vibration prevention teeth (16), vibration prevention teeth (16D) may be provided so as to correspond to each other, and the vibration prevention teeth (16D) are connected to the connecting portion (15D) in the circumferential direction.

Fig. 18 and 19 show an elastic crawler of embodiment 7.

As shown in fig. 18 and 19, the drive teeth (15) and the anti-vibration teeth (16) are alternately arranged in the two rows of the left and right rows of the teeth (12a, 12b) along the circumferential direction, and the heights of the drive teeth (15) and the anti-vibration teeth (16) from the heads (15C, 16C) are substantially the same. Short and shallow groove portions (22) are provided between the drive teeth (15) and both end sides of each vibration-proof tooth (16), and both ends of the head portion (16C) of the vibration-proof tooth (16) are inserted into the groove portions (22) so as to approach the head portion (15C) of the drive teeth (15).

The driving teeth (15) and the heads (15C, 16C) of the shockproof teeth (16) are in a state of being close to each other along the circumferential direction, and a groove part (22) can be arranged between the driving teeth (15) and the shockproof teeth (16). Therefore, the drive teeth (15) and the shockproof teeth (16) are not required to be arranged to realize the continuity of the heads (15C, 16C).

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments, and various modifications are possible. For example, in the embodiment, the shapes of the driving teeth (15) and the anti-vibration teeth (16) forming the two rows of teeth (12a, 12b) on the left and right sides of the outer periphery of the crawler body (10) can be changed appropriately according to the conditions on the track, regardless of the road and the off-road. Therefore, the pattern is not limited to the lug pattern shown in each embodiment. The use of the crawler travel mechanism (1) using the elastic crawler belt (4) is not limited, and any other mechanism such as a transport vehicle, an agricultural machine, a snow remover, a construction machine, and the like can be targeted.

Although it is a normal situation that the drive teeth (15) and the anti-vibration teeth (16) are alternately arranged in the two rows of the left and right rows of the teeth rows (12a, 12b), the drive teeth (15) may be constituted by two rows of main teeth which are long in the width direction and auxiliary teeth which are short compared with the main teeth but are arranged inside the width direction of the anti-vibration teeth (16) and are connected to adjacent main teeth in the circumferential direction by the anti-vibration teeth (16) along the circumferential direction.

The anti-vibration teeth (16) are located in the wheel rotation movement regions (14a, 14b), and may be arranged over substantially the entire length in the circumferential direction between the drive teeth (15) adjacent in the circumferential direction. Therefore, the vibration-proof teeth (16) may be arranged to correspond to the total width of the wheel rotational movement regions (14a), (14b), but need not necessarily be provided. The vibration-proof teeth (16) are preferably substantially equal in height to the drive teeth (15), but may have a slight difference in height within a range where no vibration occurs.

Preferably, the drive teeth (15) are arranged in an inclined shape, but may be provided in a linear shape along the width direction. Further, the vibration-proof teeth (16) may be provided in a linear shape along the circumferential direction in accordance with the wheel rotational movement regions (14a), (14b) in any case where the drive teeth (15) are formed in an inclined shape or a linear shape in the width direction. Preferably, the rows of teeth (12a, 12b) in the two left and right rows form the same lug pattern so that the rows of teeth (12a, 12b) form substantially line symmetry in the width direction of the track body (10), or are arranged 1/2 pitches offset in the circumferential direction, but the rows of teeth (12a, 12b) in the two left and right rows may form different lug patterns.

When the rotation wheel (5) moves the central rotation wheel body (9c) of the rotation wheel (5) to rotationally move the central wheel rotation movement region (14c) by setting the space between the two rows of coupling parts (11) of the crawler body (10) as the central wheel rotation movement region (14c), the inner end parts (15A) of the left and right driving teeth (15) may be alternately arranged in the circumferential direction in a manner corresponding to the central wheel rotation movement region (14c), and the shockproof teeth (16) corresponding to the central wheel rotation movement region (14c) may be provided so that the driving teeth (15) are connected in the circumferential direction by the shockproof teeth (16).

While the preferred embodiments of the elastic crawler according to the present invention have been described above, the present invention is not limited thereto, and various modifications may be made within the scope of the claims, the description of the invention, and the accompanying drawings, and the scope of the present invention is also encompassed by the present invention.

Claims

1. An elastic crawler belt having two rows of teeth provided on an outer circumferential side of a crawler belt body in a width direction of the crawler belt body, each of the rows of teeth having a plurality of driving teeth arranged at substantially equal intervals in a circumferential direction of the crawler belt body,

the teeth are provided with shockproof teeth which are arranged between the adjacent driving teeth in the circumferential direction and correspond to a wheel rotation movement area on the inner circumferential side of the crawler belt body,

the drive teeth of the respective tooth rows are inclined in such a manner that an inner end portion side in the width direction is located on one side in the circumferential direction and an outer end portion side in the width direction is located on the other side in the circumferential direction,

the vibration-proof teeth of the tooth rows are connected to the connecting portion on one side in the circumferential direction corresponding to the wheel rotational movement region and the connecting portion on the other side in the circumferential direction corresponding to the wheel rotational movement region,

in the above-described configuration, the connecting portion on one side in the circumferential direction is located further outward in the width direction than the connecting portion on the other side in the circumferential direction, and the vibration-proof teeth of the respective tooth rows are inclined in a direction opposite to the respective driving teeth.

2. The elastomeric track of claim 1, wherein each anti-vibration tooth is substantially flush with each drive tooth.

3. The elastic track according to claim 1 or 2, characterized in that each row of teeth forms substantially line symmetry along the width direction.

4. The elastomeric track of claim 1 or 2, wherein the two rows of teeth are such that the drive teeth and the anti-shock teeth are offset by half a pitch in the circumferential direction.

5. The elastic track according to claim 4, wherein, of said drive teeth of said respective tooth rows, inner end portions of said drive teeth of one side of said tooth rows are located between inner end portions of said drive teeth adjacent in said circumferential direction of said other side of said tooth rows.

6. The elastic track of claim 5, wherein inner ends of said drive teeth of said respective tooth rows overlap in said width direction.

7. The elastic crawler according to claim 5 or 6, wherein inner end portions of the driving teeth of the respective tooth rows are arranged so as to correspond to a central wheel rotational movement region provided between the coupling portions of the driving wheels of two rows in the width direction, and the anti-vibration teeth are arranged so as to correspond to a wheel rotational movement region provided outside the coupling portions of the two rows.