JP2001171565A - Vehicle with cabin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control broad inclination movement in the lateral direction of a cabin. SOLUTION: An engaged part 40 is provided on the body side, and an engaging part 39b engaged with the engaged part 40 to control lateral inclination of the cabin is provided on the cabin side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle with a cabin (for example, a tractor with a cabin) in which a cabin surrounding a driver is mounted on a vehicle body.

[0002]

2. Description of the Related Art As a vehicle equipped with a cabin, there is a tractor with a cabin. In the tractor with a cabin, a pair of right and left support brackets are usually fixed to a front portion and a rear portion of a vehicle body. A cabin is attached to the vehicle via a vibration-proof rubber so as to absorb the transmission of vibration from the vehicle body side to the cabin side.

[0003]

In the tractor with a cabin, since the cabin is attached to the vehicle body via a vibration-proof rubber, the cabin has a structure capable of tilting left and right. If it leans too much left and right (in this case, the driver does not lean with the cabin), the left and right side walls of the cabin will fall within the specified minimum required area (required space) around the driver (driver placement section). There is a risk of intrusion. In view of the above problems, an object of the present invention is to regulate a large left and right inclination of a cabin.

[0004]

The technical means taken by the present invention to solve the above-mentioned problem is a vehicle equipped with a cabin in which a cabin is attached to a vehicle body via a vibration isolating member made of an elastic body. And an engaging portion that engages with the engaged portion and regulates the left and right inclination of the cabin is provided on the cabin side. Also,
A stay is fixed to the cabin side, a support stand for supporting the stay is fixed to the vehicle body side, and a pair of upper and lower vibration isolator members are arranged so as to sandwich the upper wall of the support stand, and a lower vibration isolator member is provided. An engaging member is arranged on the lower side, the stay is placed on the upper side of the upper vibration isolating member, a bolt penetrating these stays, the upper wall of the support base, the upper and lower vibration isolating members and the engaging member, and a screw is attached to the bolt. The stay may be fastened and fixed to the support base by a mating nut, and the support base may be provided with an engaged portion located above the engagement portion of the engagement member.

[0005] The support base has front and rear walls and an upper wall connecting upper ends of the front and rear walls, and the engaged portion extends from the inner surfaces of the front and rear walls of the support base to above the engagement portion of the engagement member. The front and rear engagement portions may be formed such that the front and rear engagement portions are narrower on the inner side than on the outer side in the left-right direction.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 4 to 6,
Numeral 1 denotes a tractor with a cabin exemplified as a vehicle with a cabin.
The main structure is formed by coupling a power transmission mechanism 4 for transmitting power from the engine 3 to drive wheels and a PTO shaft and the like, and is supported by a pair of left and right front wheels and rear wheels 16 so as to be able to travel. ing.

The transmission case 4 is connected to the rear of the engine 3 and houses a clutch housing 4A.
And a transmission case 4A or the like that is connected to the rear of the clutch housing 4A and houses a transmission and the like. In the rear part of the vehicle body 2, a cabin 5 of an independently mounted type is detachably mounted on the vehicle body 2 via a vibration isolating member 6 made of an elastic body such as rubber. A cabin frame serving as a framework of the cabin 5 includes a pair of left and right front struts 7 arranged at the front, a pair of left and right rear upper struts 8 and a pair of left and right rear lower struts 9 arranged at the rear, and a front strut 7. , A pair of left and right intermediate posts 10 arranged between the rear upper posts 8 and upper front frames connecting the upper ends of the left and right front posts 7, and upper rear frames connecting the upper ends of the left and right rear upper posts 8. , And the front strut 7 and the rear upper strut 8 on the same side on the left and right
Upper frame 1 composed of upper frame material connecting the upper ends of
1, a rear horizontal frame member 12 connecting the lower end portions of the left and right rear upper columns 8 and an upper end portion of the left and right rear lower columns 9 and a front frame member 15 connecting the lower end portions of the left and right front columns 7. And the like.

The lower ends of the left and right rear lower columns 9 are connected to the rear ends of lower frame members 13 arranged in the front-rear direction, and the lower ends of the intermediate column 10 and the rear upper column 9 on the same left and right sides. The members are connected by an intermediate frame member 14. Also, the front frame material 15
Is composed of a portal portion 15A and a connecting portion 15B that connects the lower end of the portal portion 15A and the lower end of the front support 7. A windshield 41 is provided between the left and right front supports 7, a rear glass is provided between the left and right rear upper supports 8, and an entrance 17 between the front support 7 and the intermediate support 10 is provided. 17 is closed by a door 18 so as to be openable and closable. Further, a side glass 19 is provided between the left and right intermediate columns 10 and the rear upper column 8, a fender 20 covering the rear wheel 16 is provided below the side glass 19, and a roof 21 is provided on the upper frame 8. .

At the bottom of the cabin 5, a floor sheet is stretched. The rear part of the floor sheet is formed one step higher than the front part, and on the rear part of the floor sheet formed one step higher, between the left and right fenders 20. A driver's seat 23 is provided. A steering device 24 having a steering wheel is disposed in front of the driver's seat 23.
Is attached to the portal 15A of the front frame member 15. The cabin 5 is supported by a pair of left and right front support brackets 25 attached and fixed to the traveling vehicle body 2 and a pair of left and right rear support brackets 26 via anti-vibration members 6, respectively.
Thereby, the cabin 5 is mounted on the vehicle body 2.

As shown in FIG. 1 to FIG. 5 and FIG. 7, the rear support bracket 26 is made of a plate material or the like which comes into contact with the upper surface of a left and right rear axle case 27 which accommodates a rear axle for transmitting power to the rear wheel 16. The main structure is composed of an upper mounting member 28, a lower mounting member 29 made of a plate material or the like contacting the lower surface of the rear axle case 25, and a support 30 fixed to the upper surface of the upper mounting member 28 by welding or the like. . The bolt 31 penetrates the mounting member upper part 28 and the mounting member lower part 29, and a nut 32 is screwed into the bolt 31, whereby the rear support bracket 26 is fixedly mounted on the rear axle case 27. I have.

The support base 30 includes front and rear walls 30a and 30b,
An upper wall 3 connecting the upper ends of the front and rear walls 30a and 30b.
0c, it is formed in an open U-shape facing downward in a side view. On the other hand, a stay 33 is fixed to the lower rear side of the left and right rear lower column 9 of the cabin 5 by welding or the like, and the stay 33 is a lower side connecting the pair of left and right side walls 33a and lower ends of the left and right side walls 33a. A lower plate 33b is fixed to the lower surface of the lower wall 33b by welding or the like. The stay 33 is fastened and fixed to the support bracket 26 by a bolt 35 and a nut 36 via a pair of upper and lower holding members 34 and a pair of upper and lower vibration isolator members 6, so that the rear portion of the cabin 5 is subjected to vibration isolation. It is attached to the vehicle body 2 via a member 6.

That is, the upper and lower vibration isolating members 6
0 is disposed above and below the upper wall 30c so as to sandwich the upper wall 30c.
8 is inserted, one holding member 34 is disposed on the upper vibration isolator 6, the other holding member 34 is disposed below the lower vibration isolator 6, and further, the lower holding member 34 is provided. On the underside,
An engaging member 39 comprising a vertically arranged tubular portion 39a and a flange portion 39b (engaging portion) projecting radially outward from a lower end of the tubular portion 39a is disposed. The lower wall 33 b of the stay 33, the backing plate 37, the upper and lower holding body 34, the cylindrical body 38, and the engaging member 39 are inserted from above, and a nut 36 is screwed to a lower end of the bolt 35.

The front wall 30a and the rear wall 3 of the support 30
On the inner surface (opposite surface) of Ob, an engaged portion 4 made of a plate material or the like is provided.
0 is fixed by welding or the like. This engaged portion 40
Above the flange portion 39b of the engagement member 39,
The flanges 39 are arranged at an interval L (for example, 5 mm) in the vertical direction, and extend from the inner surfaces of the front and rear walls 30a and 30b.
It is extended above b. Therefore, the cabin 5 is allowed to tilt left and right within a predetermined range, but tilting left and right beyond the predetermined range is caused by the flange portion 39 of the engaging member 39.
a is brought into contact (engagement) with the engaged portion 40 to be regulated.

The left and right ends of the engaged portion 40 are bent downward. The front-rear width B2 on the inner side in the left-right direction is formed to be narrower than the front-rear width B1 on the outer side in the left-right direction,
The space between the front and rear engaged portions 40 is configured to be wider on the inner side in the left-right direction. This is because it is easy to insert the anti-vibration member 6 and the like below the support base upper wall 30c from the inside in the left-right direction while ensuring the strength of the engaged portion 40. The front support bracket 25 is shown in FIGS.
As shown in FIG.
And a horizontal plate-like support portion 43 protruding outward in the left-right direction from an outer surface in the left-right direction of the mounting portion 42. An upright wall 44 projecting upward is provided at the front end of the support portion 43. A downwardly protruding hanging wall 45 is provided at the rear end of the support member 43, whereby the rigidity of the support portion 43 is firmly secured.

The mounting portion 42 of each support bracket 25 is fixed to a mounting portion 46 (thick portion) on the outer surface of the vehicle body 2 (clutch housing 4A) by bolts 47 or the like. That is, a pair of upper and lower and front and rear bolts 47 penetrate through the mounting portion 42 and are formed in the screw holes 49 formed in the mounted portion 46 of the vehicle body 2.
Is screwed into. In addition, a stud bolt 48 (or a pin) penetrates between the upper and lower bolts 47 of the mounting portion 42, and the stud bolt 48 is screwed into a screw hole 50 formed in the mounted portion 46. A nut 51 is screwed to the left and right outer sides of the stud bolt 48.

When a front loader is mounted on the front part of the vehicle body 2 of the tractor 1, the mounting portion of the support base for supporting the front loader is overlapped on the outer surface of the mounting portion 42 of the support bracket 25 and fastened together by bolts 47. However, if the stud bolts 48 are not provided, the mounting portion of the support for supporting the front loader is attached to the support bracket 25.
In the case where the stud bolts 48 (or pins) are provided, the bolts 47 must be screwed into the screw holes 49 while supporting the support base for supporting the front loader and the support bracket 25 in the case where the stud bolts 48 (or pins) are supported. By doing
Even if the bolts 47 are removed, the support bracket 25 is supported by the stud bolts 48, so that the workability of the work for attaching the support for supporting the front loader is improved.

The support portion 43 is fastened and fixed to the support bracket 25 by the bolt 55 and the nut 56 via a pair of upper and lower holding members 54 and a pair of upper and lower vibration isolator members 6. The front side is attached and supported. That is, the upper and lower vibration isolating members 6 are arranged so as to sandwich the support portion 43 vertically, and the cylinder 57 is inserted through the upper and lower vibration isolating members 6 and the supporting portion 43.
Is disposed on the upper vibration isolating member 6 and the other holding body 54
Is disposed below the lower vibration isolating member 6, and the bolt 55 is inserted through the bottom of the cabin 5, the upper and lower holding members 54 and the cylinder 57 from above, and a nut 56 is screwed to the lower end of the bolt 55. I have.

As shown in FIG. 9, the vertical width of the upright wall 44 on the inner side in the left-right direction is made wider toward the inner side in the left-right direction. The cabin 5 is located at a slight distance below the side and the front end of the cabin 5 abuts on the inner side (contact portion) of the upright wall 44 in the left-right direction, whereby the downward movement of the cabin 5 is regulated. It is configured to: A step mounting member 52 is provided on the left and right outer end sides of the left and right front support brackets 25.
In addition, an auxiliary step 53 which is located below the entrance 17 and serves as a step for getting on and off is fixedly mounted.

As shown in FIG. 6, on the indoor side of the cabin 5, in order to reduce the weight and secure the rigidity of the cabin 5, the middle of the left and right front columns 7 in the vertical direction and the front frame 15 A connection frame 58 that connects the upper part of the gate portion 15 </ b> A is provided at a distance from the windshield 41. On the other hand, the front glass 41 includes an upper glass 41A and a pair of left and right lower glasses 41B. The connecting frame 58 is made of a pipe material or the like, has a role of a handrail, and a portion 58a extending from the middle part in the left-right direction to the outer end in the left-right direction is arranged in the left-right direction, and is slightly connected to the connection line 59 of the upper and lower glass. It is located above. Therefore, when the operator on the driver's seat 23 looks down at the front, the portion 58a extending from the middle part in the left-right direction to the outer end in the left-right direction of the connecting frame 58 overlaps the connection line 59 of the windshield 41 so as not to obstruct the operator's view. It has become.

The inner portion 58b in the left-right direction of the connecting frame 58 is formed in an inclined shape which moves inward in the left-right direction and shifts downward, so that the visibility of the front side surface of the tractor 1 is improved. It does not hinder.

[0021]

According to the present invention, a large left-right tilt of the cabin can be restricted.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a support structure for a rear portion of a cabin.

FIG. 2 is a partial rear sectional view showing a support structure of a rear portion of the cabin.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a side view of a tractor with a cabin.

FIG. 5 is a rear view of the tractor with a cabin.

FIG. 6 is a front view of a tractor with a cabin.

FIG. 7 is a perspective view of a rear support portion of the cabin.

FIG. 8 is a perspective view of a front support portion of the cabin.

FIG. 9 is a front sectional view of a mounting portion of a front support bracket.

FIG. 10 is a side view of a mounting portion of a front support bracket.

[Explanation of symbols]

 2 Body 39b Engagement part 40 Engagement part

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Rumio Umemoto 64 Ishizukita-cho, Sakai City, Osaka Prefecture Inside Kubota Sakai Works (72) Inventor Koji Sonoi 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Corporation F-term (reference) in Sakai Works 2D015 EA02 EC02

Claims (3)

[Claims] 1. A cabin-equipped vehicle in which a cabin is attached to a vehicle body via a vibration isolating member made of an elastic body, wherein an engaged portion is provided on the vehicle body side, and the cabin is engaged with the engaged portion. A vehicle with a cabin, characterized in that an engagement portion for restricting left and right inclination is provided on the cabin side. 2. A stay is fixed to the cabin side,
A support base for supporting the stay is fixed to the vehicle body side, a pair of upper and lower vibration isolator members are arranged so as to sandwich the upper wall of the support base, and an engaging member is arranged below the lower vibration isolator member. , The stay is placed above the upper vibration isolating member, and these stays,
A stay is fastened and fixed to the support base by a bolt that penetrates the support base upper wall, the upper and lower vibration isolating members and the engagement member, and a nut that is screwed to the bolt, and is positioned on the support base above the engagement portion of the engagement member. The vehicle with a cabin according to claim 1, wherein an engaged portion is provided. 3. The support base includes front and rear walls and an upper wall connecting upper ends of the front and rear walls, and the engaged portion extends from an inner surface of the front and rear walls of the support base to an upper portion of the engagement member of the engagement member. 3. The vehicle with a cabin according to claim 2, wherein the front and rear engaging portions are formed so as to be narrower on the inner side than on the outer side in the left-right direction.