JP2000085640A - Car - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an automobile in which a triangular crawler unit can be attached to a tire mounting hub of a general vehicle or the like, and considering compatibility between a tire and a triangular crawler unit. A triangular crawler belt unit (30) having at least a sprocket (32), a housing (34) rotatable with respect to the sprocket (32), and an endless crawler (36) including the sprocket (32) as one vertex and arranged in a substantially triangular shape. Housing 34 of crawler unit 30
And a connecting member 96 for detachably connecting the sprocket 32 of the triangular crawler belt unit 30 to a tire mounting hub 94 of a drive shaft provided on the vehicle body side. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile suitable for running not only on ordinary roads but also on rough terrain, muddy terrain, snowy terrain, wilderness, and the like. Cars that can do.

[0002]

2. Description of the Related Art Hitherto, as an automobile (vehicle) that travels on uneven terrain, an automobile equipped with a triangular crawler belt unit is known. For example, there is Japanese Patent Application No. 8-359204 (hereinafter referred to as a prior application) filed by the present applicant. According to this prior application, in a construction machine, a triangular crawler device (triangular crawler unit) is provided in a lower part of a vehicle body in a forward direction and a rearward direction, respectively, of the construction machine. In this triangular crawler device, a sprocket is rotatably supported by a housing attached to a vehicle body,
At a position below the sprocket, a pair of idlers is arranged so as to sandwich the sprocket. While connecting these pair of idlers with a track frame,
A crawler belt is wound around the sprocket and the pair of idlers in a substantially triangular shape, and the track frame and the housing are connected by a pair of links to form a four-bar link with the housing, the track frame, and the pair of links. Make up.

In such a configuration, when the sprocket is driven from a drive source provided on the construction machine via a drive shaft, the crawler belt is forwarded with the driving of the sprocket, and the construction machine is driven by the action of the grounding portion of the crawler belt. Is to run. At this time, when the triangular crawler device comes into contact with the front obstacle, the track frame moves rearward with respect to the sprocket by the action of the pair of links, and the front end of the crawler device rises to easily catch the front obstacle. It is something that goes beyond.

[0004]

However, in such a prior application, since the triangular crawler device has a structure dedicated to a construction machine, the triangular crawler device is directly used for other general vehicles. There is a disadvantage that it cannot be applied. Further, as a conventional technique, there is a housing in which a housing is formed to be freely rotatable with respect to a vehicle body. In such a structure, a triangular crawler device is rotated by a front obstacle such as a projection during traveling, and the vehicle body portion is rotated. There is also a problem that it may be damaged. Further, in the case where the housing is provided with a tilt stopper of the triangular crawler device on the vehicle body in a freely rotatable configuration, the tilt stopper of the steering wheel portion is large and complicated due to a structure for stopping the entire triangular crawler device. There is also a drawback that it will.

An object of the present invention is to enable a triangular crawler belt unit to be mounted on a tire mounting hub in a general vehicle or the like,
An object of the present invention is to provide an automobile in which compatibility between a tire and a triangular crawler unit is considered.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to achieve the above object by providing a connecting member detachably connected to a tire mounting hub provided on a vehicle body side drive shaft on a triangular crawler belt unit. It is.

More specifically, the invention of claim 1 is arranged at least in a substantially triangular shape including at least a sprocket, a housing rotatable with respect to the sprocket, and the sprocket as one vertex, and along the triangular shape. A triangular crawler unit having an endless crawler capable of orbiting, a rotation locking member for locking a housing of the triangular crawler unit to a vehicle body, and a tire attachment of a drive shaft provided on a vehicle body side to a sprocket of the triangular crawler unit on the vehicle body side And a connecting member detachably connected to the hub.

According to the present invention, since the housing of the triangular crawler belt unit is locked to the vehicle body via the rotation locking member, the triangular crawler belt unit runs smoothly without tilting due to a forward obstacle or the like. be able to. In addition, since the sprocket of the triangular crawler unit is connected to the tire mounting hub of the drive shaft by a detachable connecting member, a general tire or triangular crawler unit can be replaced and mounted on the vehicle body as necessary. .

According to a second aspect of the present invention, in the vehicle according to the first aspect, a pair of idlers for arranging the endless crawler belt and the sprocket in a substantially triangular shape is provided. , The truck frame is supported by the housing via a pair of links, and the housing, the track frame and the pair of links constitute a four-bar link automobile.

According to the present invention, the obstacle side of the track frame rises when the triangular crawler belt unit passes over the front obstacle by the action of the four-bar link constituted by the housing, the track frame, and the pair of links. , You can easily get over obstacles ahead.

According to a third aspect of the present invention, in the automobile according to the first or second aspect, the rotation locking member comprises a connecting member for connecting the housing and the vehicle body side so as to be detachable from each other by a pin, a bolt, or the like. It is a configured car. According to the present invention, a suspension member such as a suspension knuckle on the vehicle body side can be easily connected to the vehicle body side by providing an end portion that can be shaft-coupled with the connection member, and the shaft connection is released, and normal tire replacement is performed. By simply performing the operation, it is possible to easily exchange the triangular crawler belt unit with the tire.

According to a fourth aspect of the present invention, there is provided an automobile according to the first or second aspect, wherein the rotation locking member is constituted by a connecting member which detachably fits and connects the housing and the vehicle body to each other. is there. According to the present invention, the connection between the housing and the vehicle body can be connected by simply fitting, and the connection operation can be further simplified.

According to a fifth aspect of the present invention, in the vehicle according to any one of the first to fourth aspects, the pair of links are:
An automobile in which the distance between the upper connection points of these links is formed longer than the distance between the lower connection points, and the pair of links is formed in a substantially inverted C shape. According to the present invention, when the triangular crawler belt unit rides on the front obstacle because the pair of links constituting the four-bar link is inverted, the pair of links are tracked by the inverted C-shape. Since the front of the frame is further raised, it is easier to pass the obstacle ahead.

According to a sixth aspect of the present invention, there is provided the automobile according to any one of the first to fifth aspects, further comprising a tension adjusting mechanism for adjusting the tension of the endless crawler belt. According to the present invention, the tension of the endless crawler belt can be made appropriate.

According to a seventh aspect of the present invention, in the vehicle according to the sixth aspect, the tension adjusting mechanism supports a pair of idlers for arranging the endless crawler belt and the sprocket in a substantially triangular shape so that the distance between the idlers can be changed. This is an automobile constituted by a track frame and an idler distance changing means for changing an idler distance of the track frame.

According to the present invention, the tension of the endless crawler belt can be adjusted very easily by the track frame capable of changing the idler distance and the idler distance changing means for changing the idler distance of the track frame. At this time, as the track frame in which the distance between idlers can be changed, a track frame is constituted by a pair of nested frames, or a slidable member is provided in a long groove provided in the frame body. An idler may be attached to each of the flexible member and the frame body. In addition, as a means for changing the distance between idlers, it is attached to a track frame capable of changing the distance between idlers,
It can be constituted by a cylinder operated by oil or the like, by a spring, or further by a turnbuckle mechanism. In addition, the above-described cylinders, springs, and the like act as so-called urging means, so that the endless crawler belt can always be properly tensioned.

In the present invention, the triangular crawler unit only needs to include a sprocket, a housing rotatable with respect to the sprocket, and an endless crawler belt having the sprocket as one vertex and arranged in a substantially triangular shape. The shape and the like thereof include all the structures disclosed hitherto. The vehicle to which the present invention is applied is not limited to general passenger cars, RV vehicles (recreational vehicles), etc., but can also be applied to construction machines and other special vehicles. The invention is not limited to two-wheel drive by rear-wheel drive, and may be four-wheel drive.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 to FIG. 6 show a first embodiment of the present invention. In FIG. 1 showing a schematic configuration, an automobile 1 includes a vehicle body 10, and a pair of front and rear tires 5 are mounted on the front and rear of the vehicle body 10 on the right and left sides in a direction perpendicular to the paper surface. In the present embodiment, a triangular crawler belt unit 30 is mounted instead of the tire 5. The triangular crawler belt unit 30 is arranged in a substantially triangular shape including a sprocket 32, a housing 34 rotatable with respect to the sprocket 32, and the sprocket 32 as one vertex, and is capable of orbiting along the triangular shape. Endless crawler belt 36.

The triangular crawler unit 30 is shown in FIGS.
In more detail. In the sectional view of FIG.
Teeth 38 are formed at predetermined intervals on the inner periphery of the endless crawler belt 36 made of a flexible member such as soft plastic (see FIG. 5). These teeth 38 are
2 (see FIG. 3), and the sprocket 32
With the rotation of, the endless crawler belt 36 is circulated along the triangular shape.

The sprocket 32 is raised at a predetermined interval on the bottom member 42 and the outer periphery of the bottom member 42, and the outer peripheral ends thereof are bent in directions axially away from each other, so that the cross-section becomes L-shaped. It comprises side walls 44 formed in an inverted L-shape and the teeth 40 formed at predetermined intervals between these side walls 44. At the right end in FIG. 3, a bearing base 46 is attached to the bottom member 42 by a reinforcing member 48.
Has been fixed through. The bearing base 46 is formed in a cylindrical shape with a flange. A cylindrical member 52 of the housing 34 is rotatably mounted on the outer periphery of the cylindrical portion via a bearing 50. At the right end in FIG. 3 of the cylindrical member 52, a bearing cover 54 that covers an end surface of the bearing 50 is attached to prevent dust and the like from entering the bearing 50, and grease in the bearing 50 leaks to the outside. Not to be.

A lower portion 58 of a semi-cylindrical shape is fixed to the lower half side of the cylindrical member 52 via two ribs 56. It extends to the left end side of the middle endless crawler belt 36. A long hole 60 is formed at the left end of the lower member 58 projecting from the endless crawler belt 36, and a pair of brackets 62 protruding downward from the lower member 58 are provided below the long hole 60. ing. This bracket 6
One end (lower end) of the rotation fixed link 64 as a connecting member is detachably connected to the shaft between the two by a pin 66. At the other end (upper end) of the rotation fixed link 64, a rotation fixed link mounting portion 70 formed integrally with a suspension member 68 constituting a part of the vehicle body 5 is detachably connected to a shaft via a pin 72. I have. At this time, a rotation locking member 74 is configured by the bracket 62, the rotation fixed link 64 as a connecting member, the pin 66, the rotation fixed link mounting portion 70, and the pin 72.

As shown in FIGS. 2 and 5, the suspension member 68 has a drive shaft insertion hole 76 at the center, and an upper arm mounting portion 78 and a lower arm mounting portion 80 above and below the drive shaft insertion hole 76. In addition, a steering rod mounting portion 82 is arranged to extend sideward. As shown in FIGS. 2 and 5, the suspension member 68 is provided with a brake main body mounting portion 84 for mounting a brake device (not shown).

The upper arm mounting portion 78 of the suspension member 68
The upper arm 86 and the lower arm 88 are connected to the lower arm mounting portion 80, respectively. The upper arm 86 and the lower arm 88 are respectively connected to the vehicle body side so as to be able to swing up and down. The device is configured. Suspension member 6
8 is inserted into the drive shaft insertion hole 76 (see FIG. 3), and a joint portion (not shown), a reduction gear in a hub, and the like are provided as necessary at the front end of the drive shaft 90. The brake disk 92 and the tire mounting hub 94 are mounted so as to be rotatable integrally with the drive shaft 90 via a mechanism provided, and are rotatably supported by the suspension member 68. The tire mounting hub 94 is provided with the above-described bearing base 4.
6 is detachably attached to a hub connecting portion 96 constituted by a left end surface in FIG. 3 by a connecting means 98 comprising a plurality of bolts, nuts and the like.

Therefore, the bearing base 46 is provided with the tire mounting hub 9 which can rotate integrally with the drive shaft 90 provided on the vehicle body side.
4 functions as a connecting member for detachably connecting the sprocket 32. At this time, it is needless to say that the connecting means 98 provided at a plurality of locations at predetermined intervals with respect to the hub connecting portion 96 can be removed, and the tire 5 can be mounted instead of the triangular crawler belt unit 30.

In FIG. 2, a long track frame 100 is disposed below the sprocket 32. The track frame 100 has an outer frame 102 made of a square pipe, and one end is inserted into the outer frame 102 and inserted therein. And an inner frame 104 having a square pipe shape. Further, a pair of front and rear idlers (guide wheels) is provided at both left and right ends of the track frame 100, that is, at the right end in FIG. 2 of the outer frame 102 and the left end in FIG. 2 of the inner frame 104 via a stepped shaft 106 and a bearing 108, respectively. 110 is rotatably supported. The pair of idlers 110 and the sprocket 32 form a substantially triangular shape, and the endless crawler belt 36 is wound around the sprocket 32 and the pair of idlers 110. The track frame 100 is composed of the outer frame 102 and the inner frame 10.
4, the track frame 100 is formed so that the idler distance can be changed.

In the track frame 100, the outer frame 102 and the inner frame 104 are moved forward and backward,
A cylinder 112 is incorporated as an idler distance changing means for changing the idler distance. This cylinder 1
12, one end located on the outer frame 102 side is swingably connected to the outer frame 102 via a universal joint-shaped joint portion 114,
The tip of a rod 116 located on the inner frame 104 side is similarly swingably connected to the inner frame 104 via a ball joint-shaped joint portion 118. At this time, a joint portion 114 connecting the cylinder 112 and the outer frame 102 is rotatable in a horizontal plane (horizontal direction) on a bifurcated portion at the base end of the cylinder 112 and in a vertical plane with respect to the outer frame 102 ( (Vertical direction)
And an intermediate joint member which is rotatable. The cylinder 112 is filled with, for example, grease.

Here, the track frame 10 composed of the outer frame 102 and the inner frame 104
0 and the cylinder 112, the outer frame 102 constituting the track frame 100 in which the tension adjusting mechanism 120 of the endless crawler belt 36 is formed. On the side surfaces, link brackets 122 each have a front end protruding from the outer frame 102, and the front ends are fixed to be inclined inward so as to approach each other. On the other hand, on the left and right sides of the lower member 58 of the housing 34 in FIG. 2, the ends protrude obliquely downward, opposite to the link bracket 122, and are provided at intervals in the direction perpendicular to the paper of FIG. 2. The pair of connection brackets 124 are respectively fixed. A link 130 is connected between the link bracket 122 and the connection bracket 124 via a connection pin 126 and a connection pin 128, respectively. Thereby, the housing 34, the track frame 100 and the pair of links 1
30 form a four-node link. The connecting point of the upper pair of links 130, i.e., connecting point distance L ₁ is lower between the connecting pin 128, i.e., it is longer than the distance L ₂ between the connecting pin 126, thereby the pair of link 130 Are formed in an inverted C shape.

In the description of the operation related to the link 130 in FIGS. 2 and 6, when the left link 130 and the right link 130 in FIG. , And a reference B may be added to the left link 130 in some cases. The same applies to other members.

In FIG. 2, the member protruding at the base of the connection bracket 124 is a swing stopper 132, and the member protruding at the base of the link bracket 122 of the outer frame 102 is the swing stopper 13.
The swing amount of the link 130 is regulated by the swing stopper 132 and the swing stopper 134.

In the middle part of the track frame 100, two pairs of intermediate rolling wheels 136 each formed in a direction perpendicular to the plane of FIG. 2 are rotatably supported.
The contact surface of the endless crawler belt 36 is configured to surely contact with the ground. In FIG. 5, one end of a shock absorber 138 is mounted on the upper arm 86. Further, although the shape of the idler 110 is different between FIG. 1 and the other drawings, FIG. 1 shows a state in which appropriate holes for reducing the weight of the idler 110 are formed, and these holes are not provided. Is also good.

Next, the operation of this embodiment will be described with reference to FIG. In FIG. 1, when the rotation of the drive shaft 90 is transmitted to the sprocket 32 via the hub 94 for mounting the tire and the hub connecting portion 96 of the bearing base 46, the triangular crawler belt unit 30 attached to the vehicle body 10 Will rotate. The rotation of the sprocket 32 depends on the teeth 40 of the sprocket 32 and the teeth 3 of the endless crawler belt 36.
As a result, the endless crawler belt 36 orbits around the triangular shape formed by the sprocket 32 and the pair of idlers 110. Accordingly, the endless crawler belt 36 moves on the ground contact surface of the endless crawler belt 36 with respect to the ground, and the automobile 1 runs.

When a force is applied from the front to the lower left end of the triangular crawler belt unit 30 shown in FIG. 6 by a front obstacle (not shown) in the running state of the automobile 1 as shown by an arrow F, the track frame 100 is moved rearward, that is, as shown in FIG. swings in 6 right, but as described above this time, spacing of the connecting pins 126 of the lower 4-bar linkage (distance between connection points) L ₂ is the spacing between the upper connecting pin 128 (connecting point distance) shorter than L _1, the front (as in the central arrow P idler 110A in FIG. 6 left), moves backward upwardly, while the rear as the center of the rear of the idler 110B arrow Q Move downward. The movement of the front idler 110A and the rear idler 110B is caused by the swing of the front link 130A in the direction of arrow R and the movement of the rear link 130B in the direction of arrow S. As described above, the front idler 110A moves rearward and upward, thereby easily overcoming the obstacle in front.

According to the above-described embodiment, the following effects can be obtained. That is, the sprocket 32 of the triangular crawler belt unit 30 can be detachably connected to the tire mounting hub 94 that rotates integrally with the drive shaft 90 via the hub connecting portion 96 of the bearing base 46 as a connecting member. By connecting and releasing the connecting means 98, the triangular crawler belt unit 30 and the tire 5 can be easily exchanged. Therefore, the vehicle 1 can run smoothly even on uneven terrain or muddy terrain.

In connecting the triangular crawler belt unit 30 to the tire mounting hub 94, the suspension member 6 on the vehicle body side is used.
8, the ends of the rotation fixed link 64 are axially connected to the bracket 62 of the housing 34 by the pins 72 and 66, respectively, and the position of the housing 34 is fixed to the vehicle body 10. Unlike the case where the housing 34 is freely rotatable as in the related art, the crawler belt unit 30 does not tilt due to a front obstacle and does not perform a stumble operation. Moreover, the pair of idlers 110 supported by the track frame 100
Since the idler 110A on the front side in the traveling direction can move rearward and upward by the action of the link 130 arranged in an inverted C shape, it can easily pass over the obstacle in front.

In the track frame 100, an outer frame 102 and an inner frame 104 are telescopically formed so as to be telescopic.
Since the cylinder 112 is interposed between the inner track 104 and the inner frame 104, the front and rear idlers 110 can always be urged in a direction away from each other, and an appropriate tension is applied to the endless track 36 of the triangular track unit 30. Can be given. Further, since a swing stopper 132 is provided on the housing 34 and a swing stopper 134 is provided on the track frame 100, excessive swing of the link 130 can be prevented, and the sprocket 32 of the triangular crawler unit 30 can be prevented. The amount of deformation of the triangle formed by the pair of idlers 110 can be reduced.

Accordingly, the endless crawler belt 36 does not loosen, and the teeth 38 of the endless crawler belt 36 and the sprocket 32
Of the teeth 40 does not occur. In this case, even if the meshing angle between the teeth 40 of the sprocket 32 and the teeth 38 of the endless crawler belt 36 is small, the endless crawler belt 36 does not jump or lose its track.

FIGS. 7 and 8 show a second embodiment of the present invention. The second embodiment is a modification of the rotation locking member that locks the housing to the vehicle body. Here, the same or corresponding components as those of the first embodiment are denoted by the same or corresponding reference numerals, and the description is omitted or simplified. In this embodiment, when the housing 34 and the suspension member 68 on the vehicle body side are locked, in the first embodiment, the pins 66 and 72 at at least one end of the rotation fixed link 64 are inserted and removed. The suspension member 68 on the side and the housing 34 are locked or released, but in the present embodiment, the housing 34 and the suspension member 68 are connected by a fitting connection member.

7 and 8, a bracket 140 is fixed to the lower member 58 of the housing 34 by welding or the like at a lower left position in FIG.
Reference numeral 40 denotes a fitting connection member 142 according to the present embodiment.
Are fixed by bolts 144. This connecting member 1
Reference numeral 42 includes a plate-like member 148 having a reinforcing rib 146 on the back surface, that is, the left side surface in FIG. This plate-like member 14
8 is provided with a notch 152 through which a connecting member mounting portion 150 integrally protruded from the suspension member 68 can be inserted, and a mounting portion that is provided on both sides of the notch 152 at the right side in FIG. A section locking section 154 is provided. The rest of the configuration is basically the same as that of the first embodiment, except for a part of the difference, that is, the link bracket 122 erected on the upper surface of the outer frame 102.
Is that a swing stopper 134 for regulating the swing angle of the link 130 is integrally provided.

In such a second embodiment, the triangular crawler belt unit 30 is attached to the tire mounting hub 94 on the vehicle body side.
When installing the tire mounting hub 94 and the bearing base 4
6 is the same as that in the first embodiment, but the engagement between the suspension member 68 and the housing 34 is different. That is, the connecting member 14 attached to the housing 34 side
The second plate-shaped member 148 is provided with a notch 152 having a groove width corresponding to the width of the connecting member mounting portion 150 of the suspension member 68 and a pair of mounting portion locking portions 154. In a state where the triangular crawler belt unit 30 is aligned with the connecting member mounting portion 150, the triangular crawler belt unit 30 is
4, the connecting member mounting portion 150 is automatically fitted between the mounting portion locking portions 154 via the cutout portions 152 of the plate-like member 148, and the housing 34 is rotated by the suspension member 68 on the vehicle body side. In the stopped state, they are fitted and connected.

According to the present embodiment, in addition to the effects of the first embodiment, the rotation of the housing 34 to the suspension member 68 can be simultaneously locked with the mounting of the triangular crawler belt unit 30, and the mounting efficiency is improved. Can be added.

The present invention is not limited to the above embodiments, but includes modifications and improvements as long as the objects of the present invention can be achieved.

For example, in the triangular crawler belt unit 30, the housing 34 and the track frame 100 are linked by a link 130.
Is not limited to a four-bar link, and the housing 34 and the track frame 100 may be integrally formed without a link.
The link 130 is not limited to an inverted C-shaped four-node link, but may be a parallel link-shaped four-node link. However, in the case of the inverted C-shape as in each of the above embodiments, the idler 110A provided at the front end side of the track frame 100 is lifted rearward and upward, so that there is an advantage that the obstacle can be easily moved over. . Track frame 10
Numeral 0 is not necessarily limited to a member in which a square pipe-shaped (square tube-shaped) member is formed into a telescopic shape, and may have another configuration. In some cases, the member is not a telescopic shape but an integral member. Is also good. However, if it is nested, the endless track 36
There is an advantage that the tension can be easily and appropriately maintained. Further, as an idler distance changing means, a cylinder 11
The configuration is not limited to 2, and other means such as a turn buckle may be used. In short, any configuration that can adjust the position of the outer frame 102 and the inner frame 104 is sufficient.

[0044]

According to the present invention constructed as described above, a normal tire and a triangular crawler belt unit can be appropriately replaced as needed with respect to the body of an automobile. And the like can be stably performed.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic overall configuration of a first embodiment of the present invention.

FIG. 2 is a partially cutaway front view showing a detailed structure of the triangular crawler belt unit in the embodiment of FIG.

FIG. 3 is a longitudinal sectional view at a substantially central portion of FIG. 2;

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a perspective view showing a state in which an upper arm, a lower arm, and a shock absorber are attached to a suspension member when FIG. 2 is viewed from the rear side.

FIG. 6 is an explanatory diagram illustrating an operation state of the present embodiment.

FIG. 7 is a front view of a triangular crawler belt unit according to a second embodiment of the present invention, with a part cut away.

8 is a sectional view taken along the line VIII-VIII in FIG. 7;

DESCRIPTION OF SYMBOLS 1 Automobile 5 Tire 10 Body 30 Triangular crawler unit 32 Sprocket 34 Housing 36 Endless crawler belt 46 Bearing base 64 as connecting member Rotation fixed link as connecting member 66 Pin for connecting shaft 68 Suspension member 72 For connecting shaft Pin 74 Rotation locking member 90 Drive shaft 94 Tire mounting hub 96 Hub connecting part 98 Connecting means 100 Track frame 102 Outer frame 104 Inner frame 110 Idler 112 Cylinder as idler distance changing means 120 Tension adjusting mechanism 130 Link 142 Connection Member 150 Connecting member mounting part 154 Mounting part locking part

Claims (7)

[Claims] 1. A triangle having at least a sprocket, a housing rotatable with respect to the sprocket, and an endless crawler including the sprocket as one vertex and arranged in a substantially triangular shape and capable of orbiting along the triangular shape. A crawler belt unit, a rotation locking member that locks the housing of the triangular crawler belt unit to the vehicle body, and a coupling member that detachably couples a sprocket of the triangular crawler belt unit to a tire mounting hub of an axle provided on the vehicle body side. An automobile comprising: 2. The vehicle according to claim 1, wherein the triangular crawler unit includes a pair of idlers for arranging the endless crawler along with the sprocket in a substantially triangular shape, and the pair of idlers is fixed to a track frame. The track frame is supported rotatably at an interval, and the track frame is supported by the housing via a pair of links, and the housing, the track frame, and the pair of links form a four-bar link. Car. 3. The motor vehicle according to claim 1, wherein said rotation locking member is constituted by a connecting member for removably connecting said housing and a vehicle body by a shaft. 4. The motor vehicle according to claim 1, wherein said rotation locking member is constituted by a connecting member which detachably fits and connects said housing and a vehicle body. 5. The vehicle according to claim 1, wherein said pair of links is formed such that a distance between said connection points above said links is longer than a distance between said connection points below said links. A vehicle characterized in that the link of (1) is formed in an inverted C shape. 6. The vehicle according to claim 1, further comprising a tension adjusting mechanism for adjusting the tension of the endless crawler belt. 7. A vehicle according to claim 6, wherein said tension adjusting mechanism comprises: a track frame for supporting a pair of idlers for arranging said endless crawler belt in a substantially triangular shape together with said sprocket so that a distance between idlers can be changed; An automobile comprising: an idler distance changing unit that changes an idler distance of a truck frame.