JPH0651087U - Track belts for snowmobiles - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] It is possible to effectively prevent the track belt body from being damaged and the studs from falling off, improve the driving force of the snowmobile, and slip the track belt body. (EN) Provided is a snowmobile track belt capable of improving the prevention effect. [Structure] Reference numeral 4 denotes a track belt main body, 6 denotes a rod, and a metal fitting body 12 is caulked and fixed to the rod 6 via a cushioning rubber 11. A stud base 13 is fitted on the upper surface of the metal fitting body 12 so as to cover the terminal portion 12a, and a stud 14 is erected on the stud base 13. The metal fitting body 12 and the stud base 13 are locked and fixed via locking members 14a and 14b, and the stud 14 standing on the stud base 13 has a screw hole formed on the upper surface 13a of the stud base 13. A bolt is screwed into the screw hole at the base end of the stud 14 and is fixed by the press nut 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a snowmobile track belt, and more particularly to a snowmobile track belt to which a stud for slip prevention can be attached without damaging the track belt body.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, as shown in FIGS. 7 and 8, a track belt for a snowmobile has a sprocket-shaped drive wheel 2, a driven wheel 3, and an idler wheel (not shown) provided on a drive track portion 1 provided at a rear portion of a vehicle body frame. A plurality of endless track belt main bodies 4 (three in this embodiment) are wound around, and slide rails 5 are disposed on the ground-side back surface of the track belt main bodies 4 so as to be in sliding contact with each other. ing.

The track belt body 4 is connected by a plurality of rods 6 which are embedded in the belt width direction at predetermined intervals, and the weight of the snowmobile body is supported by the slide rails 5. The weight of the vehicle body is distributed over the entire width of the track belt main body 4 via the rod 6. By the way, on the surface of the conventional track belt body 4, a conical stud 7 for slip prevention is attached as shown in FIG. 7, and the stud 7 forms a through hole in the track belt body 4. The bolts and nuts 8 are fastened to the through holes.

[0004]

[Problems to be solved by the device]

 However, since the conventional stud 7 is attached to the track belt body 4 by forming a through hole, the track belt body 4 is damaged, which reduces the durability of the track belt body 4 and shortens its life. There is also a problem that the tension is applied to the track belt body 4 during traveling, so that the through hole expands and the stud 7 for slip prevention falls off.

In order to solve the above-mentioned problems, the applicant of the present invention, as a result of earnest research, has distributed the weight of the vehicle body to the entire width of the track belt body 4 via the rod 6, and the slide rail. Paying attention to the fact that a particularly large amount of distributed load is applied to the caulking metal fitting 9 that is located under 5 and is attached to the track belt body 4, the anti-slip stud 7 can be attached to and removed from the caulking metal fitting 9. It was designed to be attached firmly.

The present invention has been devised in view of such conventional problems, and can effectively prevent the track belt body from being damaged and the stud from falling off even during normal traveling of the snowmobile. It is an object of the present invention to provide a track belt for a snowmobile, which can improve the driving force of the snowmobile and can also improve the slip prevention effect of the track belt body.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a stud provided vertically on a rod for connecting a track belt main body at a predetermined interval to a crimping metal fitting for slidably mounting a slide rail via a rubber cushion. The idea is to fix it. The caulking metal fitting is composed of a metal fitting main body which is caulked to the rod through a cushioning rubber, and a stud base on which a stud is erected and fixed, and the metal fitting main body and the stud base are locked. The stud is removably attached to the stud base via the threaded portion so that the tip of the threaded portion can come into contact with the upper surface of the metal fitting body. At least one of the metal fitting body and the stud base is provided with a locking projection, and the other is provided with a recess with which the locking projection is engaged.

[0008]

[Action]

 In this invention, the studs are provided on the caulking metal fittings on which the slide rails are slidably mounted, so that the track belt body is not damaged or the studs fall off during normal running of the snowmobile. In addition, the stud is firmly held by crimping the stud base with the stud standing upright to the rod body with the cushioning rubber intervening between them, so that the stud can be firmly held and the driving force of the snowmobile can be improved. The anti-slip effect of the track belt body can also be improved.

[0009]

[Example of device]

 An embodiment of the present invention will be described below with reference to the accompanying drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. 1 and 2 are a sectional view and a perspective view of a caulking metal fitting 10 showing a first embodiment of the present invention, 4 is a track belt main body, 6 is a rod as a lateral rigid member, A metal fitting body 12 constituting a caulking metal fitting 10 is caulked and fixed to the rod 6 via a cushioning rubber 11.

A stud base 13 having a substantially U-shaped cross section is fitted on the upper surface of the metal fitting body 12 so as to cover the terminal portion 12 a, and a stud 14 is erected on the stud base 13. It is set up. The metal fitting body 12 and the stud base 13 are locked and fixed to each other via locking members 14a and 14b. The locking member 14a of the metal fitting body 12 has a brim-like shape extending downward from the center of both side surfaces of the metal fitting body 12. The locking member 14b of the stud base 13 is formed of a protrusion, and is formed in the center of both side surfaces of the stud base 13 by a slot that engages with the flange-shaped protrusion.

The stud 14 standing on the stud base 13 has a screw hole 15 formed in the upper surface 13 a of the stud base 13, and a bolt formed on the base end of the stud 14 in the screw hole 15. 16 is screwed and fixed by a press nut 17. That is, when the stud 14 that is erected on the stud base 13 is screwed and protruded, the tip of the bolt 16 comes into contact with the upper surface of the metal fitting body 12 and pulls the stud base 13 upward from the metal fitting body 12. As a result, as a result, the locking member 14a having the flange-shaped protrusions formed downward from the center of both side surfaces of the metal fitting body 12 is locked in the slot formed in the center of both side surfaces of the stud base 13. The metal body 12 and the stud base 13 are firmly locked and fixed to each other via the locking members 14a and 14b by abutting the upper surface of the member 14b and applying a pulling force.

Next, FIG. 3 and FIG. 4 show a cross-sectional view and a perspective view of a caulking metal fitting 10 showing a second embodiment of the present invention. In this embodiment, the metal fitting body 12 and the stud base 13 are shown. As a modified example of the locking members 14a and 14b provided on the and, the engaging groove portions 14c are formed at the center of both side surfaces of the metal fitting body 12, and the engaging groove portions 14c are engaged at the center of both side surfaces of the stud base 13. The mating hook member 14d is integrally provided.

Since the other configurations and operations are the same as those of the first embodiment, the same reference numerals are given and the description thereof will be omitted. 5 and 6 are a cross-sectional view and a perspective view of a caulking metal fitting 10 showing a third embodiment of the present invention. This embodiment is the same as the first embodiment except the metal fitting body 12 and the stud. As a means for tightening and fixing the locking members 14a and 14b provided on the base 13, a bolt 16 formed at the base end of the stud 14 is brought into contact with the upper surface of the metal fitting body 12, and the stud base 13 is pulled upward from the metal fitting body 12. In this modified example, the screw hole 18 is formed in the upper surface 13a of the stud base 13 without using the bolt 16 formed at the base end of the stud 14, and the screw hole 18 is fixed for fastening. By individually providing the screws 19 and operating the fixing screw 19, the tip of the fixing screw 19 is brought into contact with the upper surface of the metal fitting body 12 so that the stud base 13 is pulled upward from the metal fitting body 12. Those were.

The other configurations and operations are the same as those in the first embodiment, and therefore, the same reference numerals are given and the description thereof is omitted. According to the present invention, the stud 14 is provided on the caulking metal fitting 10 on which the slide rail is slidably mounted as described above, so that the track belt body is damaged even when the snowmobile is normally driven, or the stud is removed. Not to say, the stud 14 is firmly held because the stud base 13 on which the stud 14 is erected and fixed is caulked and fixed to the metal fitting body 12 which is caulked to the rod 6 through the rubber 11 for cushioning. It is possible to improve the driving force of the mobile and also improve the anti-slip effect of the track belt body.

[0015]

[Effect of device]

 In this invention, the studs are provided on the rod that connects the track belt main bodies at a predetermined interval as described above, and the crimping tool that slidably mounts the slide rail via the cushioning rubber. Even during normal running of a snowmobile, the track belt body will not be damaged or the stud will not fall off.The stud is a metal fitting that is fixed to the rod with a stud base fixed to the rod via cushioning rubber. Since it is fixed to the main body by crimping, it is firmly held, and it is possible to improve the driving force of the snowmobile and also to improve the anti-slip effect of the track belt main body.

Further, the caulking metal fitting is composed of a metal fitting body which is caulked to the rod through a cushioning rubber, and a stud base on which a stud is erected and fixed, and the metal fitting body and the stud base are locked. The studs are locked and fixed via a member, and the studs are detachably attached to the stud bases via the threaded parts. Since the stud is held in place and the stud is configured to be exchangeable, another stud can be easily attached and replaced even if it is damaged or falls off.

[Brief description of drawings]

FIG. 1 is a sectional view of a caulking metal fitting showing a first embodiment of the present invention.

FIG. 2 is an overall perspective view of FIG.

FIG. 3 is a sectional view of a caulking metal fitting according to a second embodiment of the present invention.

FIG. 4 is an overall perspective view of FIG.

FIG. 5 is a sectional view of a caulking metal fitting showing a third embodiment of the present invention.

6 is an overall perspective view of FIG.

FIG. 7 is a partially cutaway perspective view of a conventional track belt body.

FIG. 8 is a perspective view of a drive track portion of a conventional track belt body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Drive track part 4 Track belt main body 5 Slide rail 6 Rod 10 Caulking metal fitting 11 Buffer rubber 12 Metal fitting body 13 Stud stand 14a, 14b Locking member 15 Screw hole 16 Bolt 17 Holding nut

Claims (4)

[Scope of utility model registration request] 1. A snow comprising a rod for connecting endlessly formed track belt main bodies at a predetermined interval, and a crimping metal fitting for slidably mounting a slide rail via a cushioning rubber. A track belt for a mobile, wherein a stud is erected and fixed to the caulking metal fitting. 2. The caulking metal fitting comprises a metal fitting main body which is caulked to the rod through a cushioning rubber, and a stud base on which a stud is erected and fixed. The metal fitting main body and the stud base are engaged with each other. The track belt for a snowmobile according to claim 1, wherein the track belt is locked and fixed via a stop member. 3. The track belt for a snowmobile according to claim 1, wherein the stud is detachably attached to a stud base through a threaded portion, and a tip of the threaded portion is provided so as to abut against an upper surface of the metal fitting body. . 4. The snow according to claim 1, wherein the locking member has a locking projection provided on at least one of the metal fitting body and the stud base, and a recess for engaging the locking projection on the other. Track belt for mobile.