JPH0939686A - Simplified waterproof device around electrical switch of moving agricultural machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the rusting and defective contact around switches and improve the durability of parts by integrally arranging multiple operation switches operating a control actuator device posteriorly fitted to an agricultural tractor at one place, preventing water from being scattered directly around the switches when the tractor is washed, and easily drying the infiltrating water, if any. SOLUTION: A switch panel having multiple operation switches 2, 2,... at the front section is fitted on the floor 1 below a seat 7 between the right and left fenders 6, 6. Wires 4, 4,... are extended backward from the operation switches 2, 2,..., and the upper sections and side sections of the operation switches 2, 2,... and the wires 4, 4,... are covered with a soft cover too 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple waterproof device around a mobile agricultural electrical switch.

[0002]

2. Description of the Related Art There is no conventional mobile agricultural machine provided with an electric switch for electrical equipment at the bottom of a seat, and it is usually installed at a position such as around an instrument panel or a fender that can be operated by the driver just reaching for it. It was However, in mobile agricultural machines, various work devices are attached and detached to perform various work, and there are many cases where an electrical switch is additionally attached for special work that was not considered at the shipping stage. .

Conventionally, if it is a single switch, it suffices to mount it by using a switch mounting seat which is provided in advance of the instrument panel or around the fender, but the number and the place of such unused mounting seats are limited. Therefore, when multiple switches are assembled and installed in a certain place, the post-switch parts have poor durability or are likely to cause malfunctions in terms of additional man-hours, accuracy, and function maintenance such as wiring. There was a flaw.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem of the conventional device,
The following technical measures were taken. That is, on the floor 1 below the seat 7 between the left and right fenders 6, 6, a plurality of operation switches 2, 2. . Attach the switch panel 3 having the operation switches 2, 2. . From the rear to the wiring 4,4. . . And extend this operation switch 2, 2. .
And wiring 4,4. . . A simple waterproofing device around the mobile agricultural machinery electrical switch is characterized in that the upper side and the lateral side are covered with a cover 5 made of a soft material.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The mobile agricultural machine shown in the figure is an agricultural tractor 8, and operation switches 2, 2 ... . . . The present invention is folded into a section. The agricultural tractor 8 is provided with a main frame 12 including a front frame 9, a clutch housing 10, a transmission case 11 and the like in the front-rear direction of the machine body.
The front and rear axle cases (not shown) for the front and rear wheels 13, 14 and the engine 15 are attached to the.

The upper and inner portions of the left and right rear wheels 14, 14 are covered with respective fenders 6, 6, and the fenders 6, 6 are connected left and right by a floor 1 made of a thin iron plate.
A seat 7 is attached to the upper portion as shown in FIG.
The front edge of floor 1 is a substantially horizontal step 1 where the driver puts his foot.
6 are connected vertically by a connecting plate 17 in the vertical direction, and the rear edge of the floor 1 constitutes a floor plate portion of the cabin room 19 as a rear wall surface 18 protruding upward behind the seat 7. . A mat 20 made of rubber or a soft resin material is attached on the step 16.

A space is provided between the floor 1 and the lower surface of the seat 7, and the operation switch 2 which is the gist of the present invention is arranged therein. The seat 7 has a front portion pivotally mounted 65 on the mounting frame body 21 and a rear portion elastically supported by a spring 22. Reference numerals 23 and 23 denote front and rear mounting legs, which are formed by bending a strip plate.
The front and rear parts of are attached and supported between floors 1. The mounting leg 23 has a U-shape with a lower opening when viewed from the front, and a lower part of the front end of the switch panel 3 formed by bending a flat plate having a "U" shape in a side view on the floor 1 below the front mounting leg 23 is a bolt, a nut or the like. The fasteners 24, 24 are attached by tightening.

As shown in FIG. 1, the front surface of the switch panel 3 is a surface whose upper portion is inclined rearward and inclined. Above the front surface, four operation switches 2a in the lateral direction are provided as shown in FIG. 2b, 2c, 2d are attached, and a lid 26 having a bottom plate 25 is attached around these operation switches 2 so as to be openable and closable. 2a is an operation switch for initial setting, which is used when the reference position of the control posture is set.
Is a check operation switch, and when the actuator of each part is moved after the operation, a certain signal sound is emitted to inform the quality of the control part. 2c is an operation switch for switching the sensitivity high and low, and 2d is a wide and narrow setting range. This is an operation switch for switching the numerical value of.

Operation switch 2, 2. . On the back of the terminal 2
7, 27. . . Is provided, and wiring between the couplers 28, 28 attached to the rear portion of the ceiling of the switch panel 3 is performed.
4. . Are connected by The switch panel 3 is opened on the left and right sides and the rear as shown in the figure, and the top surface of the cover panel 5 made of a soft material is covered with a one-touch clip on the upper surface so as to cover from above the front lid 26 to above the coupler 28. It is attached at 29. Since the cover 5 is a soft material, both sides and front and rear parts of the cover 5 hang down to the lower floor 1 side, and water is prevented from splashing directly to the electrical components when washing the car.
In addition, since the lower part of the cover 5 communicates with the release space, the water that has entered into the lower part of the cover 5 is easy to circulate air without a seal, and the moisture does not remain inside so that the water is durable. The property is improved.

This electrical switch is used for rolling control, and a control operation box 30 is provided on the right fender 6 and a CPU 31 which is a control computer is provided below the rear wall surface 18, and each sensor is provided. (Not shown.) Wires are connected to each other. Further, the rotary tiller 32, which is one of the working machines attached to the rear part of the agricultural tractor 8 via the three-point link 33 so as to be able to move up and down, includes a switch 34 in the control operation box 30.
To extend and retract the auxiliary cylinder 35 to change the length of one of the lift rods 36 to perform rolling manual control, or to detect the levelness of the traveling ground automatically with a slope sensor (not shown), The automatic horizontal control of the tiller 32 can be performed.

Next, a description will be given of air-conditioning related matters in the cabin room 19 which is another main part. When there is no cabin 19, the driver sitting in the seat 7 is directly exposed to the outside air, wears winter clothes when it is cold, wears a hat when it is hot, and turns on a small fan to keep out the heat. I was working.
In recent years, the number of agricultural tractors 8 equipped with a cabin room 19 has increased, and as in automobiles, a heater is operated in the winter and a cooler or an air conditioner is operated in the summer to perform agricultural work.

First, the structure of the heater will be described. Inside the hood 38, the radiator 3 is provided in front of the engine 15.
6 is provided, and cooling air is sucked by the fan 37 to cool the cooling water in the radiator 36. Here engine 1
The flow of cooling water in No. 5 will be described with reference to FIG. The engine 15 includes a cylinder head 39 and a cylinder body 4.
It has a water jacket at 0 part, and has a thermostat 41 and a cylinder body 40 in front of the cylinder head 39.
In the front water pump 42, when the thermostat 41 is open, high-temperature cooling water is supplied to the radiator 36 through the upper pipe 43, and cooling water whose temperature has been lowered by the fan 37 is supplied from the lower pipe 44 to the water pump 42 in the cylinder body 40. When the temperature of the engine 15 is high, the engine 15 is cooled. When the temperature of the cooling water is low when the thermostat 41 is closed, when the water pump 42 rotates and sucks the cooling water, the cooling water of the low temperature of the engine 15 only slightly goes around from the bypass pipe 45, and the temperature of the cooling water of the engine 15 rises quickly. To do.

A heater 46 for heating is provided in the cabin room 19.
A hot water inlet pipe 47 is provided here as shown in FIG.
To the outlet pipe 48 to raise the temperature in the cabin chamber 19. In this case, when the heater 46 is far away, a large amount of hot water flows from the bypass pipe 45, which causes a drawback that the temperature rise of the cabin chamber 19 is delayed. The heater 46 shown in FIG. 5 is intended to solve this problem.
In the hot water circuit, the temperature of the heater 46 rises quickly by removing the bypass pipe 45 and attaching the inlet pipe 47a and the outlet pipe 48a to that portion.

Further, by connecting the inlet pipe 47a and the outlet pipe 48a in the vicinity of the heater 46 with a short-circuit pipe 49 having a small inner diameter as shown in FIG.
In the summer when 6a is not used, the inlet pipe 47 with the cock 50
Even if the space between a and the outlet pipe 48a is closed, no problem occurs in the cooling water circuit of the engine 15 in the summer. 51 is a temperature sensor, and the movement of the sensor is opened and closed by a link 52
It is also possible to automatically switch to the heater water passage 46a or the short-circuit pipe 49.

FIG. 7 is an explanatory view of the air conditioner. A refrigerant compressor 54 is mounted above the front of the engine 15 and driven and rotated by a pulley inside the fan 37. A box-shaped support frame 55 is attached to the upper rear part of the engine 15 on the side of the cabin chamber 19, and a condenser 56, an evaporator 57, and a heater 46 are attached to the inside of the support frame 55 from the front. Is sucked and cooled, the refrigerant in the condenser 56 is cooled and flowed to the evaporator 57, the refrigerant is vaporized in the evaporating dish portion to lower the temperature of the surroundings, and the cold air passing through the evaporator 57 is heated by the heater 46. Then, the temperature is adjusted to an appropriate temperature, and the air is blown into the cabin chamber 19 by the blower fan 59. Reference numeral 60 denotes a duct, which is an air passage that connects the blower fan 59 and the cabin chamber 19 and is detachable.

The refrigerant compressor 54 and the condenser 56 are connected by a refrigerant pressure feed pipe 61 and a refrigerant return pipe 62, and the intermediate portions thereof are detachably attached by one-touch couplers 63, 63 each having a closed-retaining lid. . Reference numeral 64 denotes a dryer, which is provided on both the refrigerant pressure-feeding pipe 61 and the refrigerant return pipe 62, and prevents a problem such as residual moisture from occurring even if a small amount of air enters the pipe when the pipe is attached.

This air conditioner includes a fan section 59 of a box-shaped support frame 55 in the upper rear part of the engine 15 and a cabin room 19.
The ducts 60 are connected to each other, and the cabin chamber 19 can be attached / detached by removing the duct 60 during maintenance of the agricultural tractor 8. Therefore, the attachment / detachment of the cabin chamber 19 can be performed by the components of the air conditioner without being restricted. Further, the air conditioner parts are separated into two parts in front of and behind the upper part of the engine 15 so that the engine 1
Since it is attached to the frame on the side of 5, the single attachment / detachment for maintenance of the engine 15 can be performed without being limited to the piping of the air conditioner. Further, a condenser 56 and an evaporator 57 are arranged in a box-shaped support frame 55 in the upper rear part of the engine 15, and the one-touch coupler 6 having a lid body which is closed and held between the condenser 56 and the refrigerant compressor 54.
Since it is detachably attached by 3, 63, it is easy to attach and detach one side of both, and maintainability around the engine 15 head is not deteriorated.

[0018]

Since the switch panel 3 having the plurality of operation switches 2 and 2 is mounted on the floor 1 below the seat 7 and the upper portion of the switch panel 3 is covered with the cover 5 made of a soft material, the plurality of switches can be fixed at a certain place. It became easy to collect and install it afterwards, and the water resistance of the retrofitted switch parts was improved, and the deterioration of durability due to rust and corrosion at the wiring terminals could be prevented.

[Brief description of drawings]

FIG. 1 is a side view of a main part with a partial cross section.

FIG. 2 is a front view of the main part of FIG.

FIG. 3 is an overall side view with a partial cross section.

FIG. 4 is an explanatory view of another main part and an engine cooling water channel.

5 is an explanatory diagram of an engine cooling water channel of the modified example of FIG. 4. FIG.

FIG. 6 is an explanatory diagram showing a partial improvement of FIG. 5;

FIG. 7 is an overall side view with partial cross-section showing the installation of an air conditioner.

[Explanation of symbols]

 1 Floor 2 Operation switch 3 Switch panel 4 Wiring 5 Covering tool 6 Fender 7 Seat

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaki Kiyasu No. 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A plurality of operation switches 2, 2 .. on the floor 1 below the seat 7 between the left and right fenders 6, 6. .
Attach the switch panel 3 having the operation switches 2, 2. . From the rear to the wiring 4,4. . . And extend this operation switch 2, 2. . And wiring 4,4. . . A simple waterproofing device around a mobile agricultural machinery electrical switch, characterized in that an upper part and a lateral part are covered with a cover 5 made of a soft material.