JPS6211205Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tractor with a cabin device having a door for getting on and off.

(Prior Art) For example, in agricultural tractors and the like, the upper portions of the left and right steps serve as entrances and exits, and generally no doors are provided for entry and exit. However, doors are required to hide the operator's feet, to mount a gear shift lever, various meters, and for other reasons.

On the other hand, some agricultural tractors are equipped with a cabin device, in which a control space above a bottom cover separated by a bonnet and left and right fenders is surrounded by a cabin structure having transparent glass on the front, rear, left and right sides. This cabin device has a bonnet,
The left and right fenders and bottom cover are used for the lower cabin structure, and the left and right doors do not separate the upper and lower cabin structures.

(Problems to be solved by the invention) In the above-mentioned conventional technology, it is easy to install a door on a tractor without a cabin device, but when a tractor with a door is used as a tractor with a cabin device, the door may interfere with the device. Therefore, it was difficult and two models had to be made, and users could only adopt two types of usage modes: a bare tractor, a cabin device, or a door.

(Means for Solving the Problems) The present invention comprises a cabin device C by mounting a cabin upper structure CU on a tractor provided with a lower door 30 on at least one of the left and right step portions 13, and In the body CU, the door 29 on the side corresponding to the lower door 30 is sized to form a single door together with the lower door 30, and is formed so as to be integrally openable and closable via a connecting member 41. It is designed to solve the problems of.

That is, the specific configuration of the problem solving means in the present invention is that the engine 2 and the transmission case 3 are connected to form a tractor body T, and the floor seat part 9 and the left and right step parts 13 are installed above the transmission case 3. A bottom cover 10 is provided, and a seat 15 can be arranged on the floor seat part 9, and fenders 8 are arranged on the left and right sides of the seat 15. In a tractor with a space as a control space, a lower door 30 is connected to the bonnet 1 via a vertical shaft 33 above at least one of the left and right step portions 13.
A cabin upper structure CU that surrounds the upper part of the control space is mounted above the left and right fenders 8 bonnet 1 and the lower door 30. The door 29 on the corresponding side is formed to a size that forms a single door together with the lower door 30, and is formed to be integrally openable and closable via a connecting member 41.

(Function) The cabin device C is configured by mounting the cabin upper structure CU on a tractor having a lower door 30 on at least one of the left and right step portions 13, and the door 29 corresponding to the lower door 30 is installed by using the lower door 30. Along with that 1
The upper and lower doors 29 and 30 are formed into a single sheet and can be opened and closed integrally via the connecting member 41 without interfering with each other.

(Example) This invention will be explained below with reference to the illustrated example.

In Figures 1 to 5, the tractor body T
is equipped with an engine 2 covered by a bonnet 1 at the front, and is formed by connecting a transmission case 3 to the rear of the engine 2, and from the engine 2 there is a front wheel bearing frame that extends forward. 4, and the front wheel 5 is centered via the protrusion.

The front wheels 5, like the rear wheels 6, are of a drive type, and are driven through a front wheel power transmission device 7 shown in the figure.

On the other hand, above the transmission case 3, a bottom cover 10 is installed, which has fenders 8 for the rear wheels 6 at the rear on both sides and has a floor seat part 9 integrally formed between the two fenders 8. Reference numeral 10 makes the floor seat part 9 correspond to a hydraulic system (not shown), and makes the front-sloping front seat part 11 in front of the floor seat part 9 correspond to the front of the hydraulic system,
Furthermore, it has an integral mid seat part 12 that covers the upper front part and both sides of the mission case 3, and step parts 13 are integrally provided on both sides of this seat part 12. The pedals 14 can be freely operated through the cable. While installing the seat 15 on the floor seat part 11 in this way,
A steering wheel 17 is provided through a rear panel 16 of the bonnet 1.

18 is a rear mounting box provided at the bottom of the floor seat section 9; 19 is a front mounting box; the steering wheel 17 can be attached to or removed from either of them; from the front mounting box 19 to the relay box 20; from the rear mounting box 18 can also be freely transmitted to the relay box 20 via the universal joint 21, and by making the front wheels 5 freely steerable from the relay box 20 via the common joint 22, the front wheels 5 can be steered not only in the forward steering position shown, but also in the rearward direction. In this case, by opening and closing the top cover of the rear panel 16 and mounting the seat 15 facing backwards, the vehicle can be seated facing backwards.

The space above the bottom cover 10, which is divided by the bonnet 1 including the rear panel 16 and the left and right fenders 8, is a control space.

In this way, the cabin device C is installed, and this cabin device C has a passenger door 28 on the front right side.
In this case, the upper door 29 and the lower door 30 are a single door divided into upper and lower parts.

First, regarding the lower door 30, a gate-shaped frame 3 is fixedly installed between the bonnet 1 and the rear panel 16.
A U-shaped pivot frame 32 is protruded from the right side of the machine frame 32, and a pair of upper and lower lower hinges 33, 33 (vertical shafts) are formed at the outer end of the frame 32. The door 30 is pivoted around a vertical axis so that it can be opened and closed. Although the lower door 30 is box-shaped here, it may also be simply L-shaped, for example, with front and outer plates.

The lower door 30 has a front part a that completely closes the outside from the gate-shaped frame 31, and a bottom part b that continues to the outside of the right step part 13 and closes the bottom part. The surface portion d is adapted to be closed to the front surface of the right fender 8 via the elastic sealing material 3.

The CU is the upper structure of the cabin device C, and has a windshield, a rear glass, a rear side glass, and left and right doors supported by a frame.
mounted on top.

The undercabin structure is formed by left and right fenders 8, a bonnet 1, a bottom cover 10, a lower door 30, and the like.

The upper door 29 is sized to form a single door (conventional cabin door) together with the lower door 30, and has an upper hinge 35 (vertical axis) concentric with the lower hinge 33 at the front right end of the cabin device C. A pair of these are provided, and can be opened and closed via these upper hinges 35.
In this way, the upper and lower doors 29, 30 are installed so that they can be opened and closed independently.

In this case, the opening/closing means is first provided with a lower handle 36 on the lower door 30, and by operating the lower handle 36, the main lock pin 3 shown in the second figure is opened.
7 can be freely engaged and detached from the inside of the right fender 8, and of course can be locked with a key, and the upper wall part e of the lower door 30 is equipped with a spring 38 and a cam 39 as shown in FIG. Upper and lower lock pins 41 (connecting members) that can be freely engaged and detached from the entrance 40 of the door are provided in a state that can be operated from inside the room, and by engaging and disengaging the upper and lower lock pins 41, the upper and lower doors 29 and 30 can be connected individually or simultaneously. It can be opened and closed. Nao 4
Reference numeral 2 designates an upper handle for independently opening and closing the upper door 29, which is simply a concave handle, and is not in a closed state or actively forms a locking mechanism with others. On the other hand, something similar to this upper handle may be arranged on the indoor side of the upper door 29, and in this case, it is configured to have a mutual locking function for the upper and lower doors 29 and 30 of the L-shaped lock lever shown in Fig. 5. It is also free to aim for unification. Further, the upper door 29 is configured to be able to be locked from the outside as required. 43 indicates a canopy plate.

The lower door 30 may be provided not only on the right side but also on the left side, and it is sufficient that it is pivotally supported on the bonnet 1 via a vertical shaft 33 above at least one of the left and right step portions 13, and is attached to the upper cabin structure CU. The door is formed of an upper door 29 which is divided into upper and lower halves on the side corresponding to the lower door 30. Further, the lower door 30 may be equipped with a speed change lever or a fuel tank, and in this case, it is configured so that opening and closing of the lower door 30 and the arrangement of the upper door 29 are not hindered.

(Effects of the invention) According to the invention detailed above, a tractor having a door for getting on and off with a lower door 30 provided on at least one of the left and right step portions 13 is used, and the upper cabin structure CU is mounted on the upper part of the tractor. By doing so, the cabin device C can be formed, the lower door 30 can be used effectively, and the door 2 of the upper cabin structure CU can be formed.
9 and the lower door 30 can form a single door without interfering with each other, and can also be opened and closed integrally by the connecting member 41. Therefore, the tractor with a cabin device does not have a cabin device in the manufacturing process. In addition to C and a bare tractor without a door, a tractor with a door can be manufactured, and the lower door 30 can be used for multiple purposes.

[Brief explanation of drawings]

Fig. 1 is a perspective overall view showing an example of the present invention;
The figure is a right side view, FIG. 3 is a view taken in the direction of the X arrow in FIG. 2, FIG. 4 is a plan view, and FIG. 5 is an enlarged sectional view of the vertical locking mechanism. T... Tractor body, C... Cabin device,
CU...Cabin upper structure, 8...Fender, 9
...Floor seat section, 10...Bottom cover, 13
... Step section, 15 ... Seat, 28 ... Boarding door, 29 ... Upper door, 30 ... Lower door, 33 ... Lower hinge (vertical axis), 35 ... Upper hinge (vertical axis), 4
1...Upper and lower lock pin (connection member).

Claims (1)

[Claims for Utility Model Registration] The engine 2 and the transmission case 3 are connected to form a tractor body T, and above the transmission case 3 there is a floor seat part 9 and left and right step parts 13.
A bottom cover 10 is provided, and a seat 15 can be arranged on the floor seat part 9, and fenders 8 are arranged on the left and right sides of the seat 15. In the tractor with a space as a control space, a lower door 30 is connected to the bonnet 1 via a vertical shaft 33 above at least one of the left and right step portions 13.
A cabin upper structure CU that surrounds the upper part of the control space is mounted above the left and right fenders 8 bonnet 1 and the lower door 30. A tractor with a cabin device, characterized in that the door 29 on the corresponding side is formed to a size that forms a single door together with the lower door 30, and is formed so as to be integrally openable and closable via a connecting member 41.