JPH052480Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a support structure for a bonnet installed in, for example, an agricultural chemical spraying vehicle such as a speed sprayer or a boom sprayer.

[Conventional technology]

Figures 4 and 5 show the speed sprayer 10.
The present invention relates to a conventional bonnet support structure. Parts corresponding to the embodiments of this invention to be described later will be indicated by the same reference numerals, and the explanation will be omitted, and only the main points will be explained.

FIG. 4 is a structural diagram of a device for supporting the bonnet 16 in a half-open state. When opening the bonnet 16, make sure that the rear end of the bonnet 16 rises.
After appropriately rotating the bonnet 16 around the hinge 20, the stay 22 is erected. The stay 22 is rotatably supported at its lower end by an appropriate vertical body at the rear of the engine room, and is locked at an appropriate location on the inner surface of the upper wall of the bonnet 16 at its upper end. In this way, the bonnet 16 is held in an inclined, half-open position.

FIG. 5 is a structural diagram of a device that supports the bonnet 16 in a fully open state. No stay 22 is provided,
A bonnet receiver 24 is fixed to the upper surface of the bonnet 16 or the drug tank 12 near the hinge 20. Then, the bonnet 16 is rotated around the hinge 20 until it almost collapses onto the top surface of the drug tank 12, and is supported in a fully open state on the top surface of the drug tank 12 via the bonnet receiver 24.

[The problem that the idea attempts to solve]

In the case of FIG. 4, since the bonnet 16 is in a half-open state, inspection of the equipment in the engine room,
Maintenance such as servicing is difficult, and the stay 22 is required, increasing the number of parts.

In the case shown in FIG. 5, the bonnet 16 is fully opened, but the force applied to the hinge 20 increases, so it is necessary to increase the strength of the base of the bonnet 16 and the hinge 20.

The purpose of this invention is to solve these problems of the prior art, and to create a bonnet support that allows maintenance to be performed with the bonnet fully open, while avoiding an increase in the number of parts and an increase in the strength of certain parts. It's about providing structure.

[Means to solve the problem]

This invention will be explained using reference numerals in the drawings that correspond to the embodiments.

The bonnet support structure of this invention has the following components (a) to (e).

(a) A bonnet 1 which is connected to the upper part of the tank 12 via a hinge 20 and is swingable above the input port 26 at the upper part of the tank 12 by rotation at the hinge 20.
6 (b) A lever 34 rotatably connected to the top surface of the tank 12 at the end on the hinge 20 side (c) A lever 34 arranged below the lever 34 and able to freely close the input port 26 by being applied to the top surface of the tank 12 (d) Connectors 42, 46 that pass through the input port lid 28 in a loosely fitted state and connect the lever 34 and the input port lid 28 to each other by leaving a gap between the lever 34 and the input port lid 28 ( e) When locked, the input port cover 28 is opened via the lever 34.
the anti-hinge 2 so as to press it against the top surface of the tank 12.
Locking tools 36, 38, 40 that releasably lock the end of the lever 34 on the 0 side to the top surface of the tank 12 [Operation] Locking of the lever 34 to the top surface of the tank 12 by the locking tools 36, 38, 40 Release the stop and release the lever 34.
is rotated at the end on the hinge 20 side, and sufficiently raised at the end on the side opposite to the hinge 20. The input port cover 28 is loosely fitted into the connectors 42 and 46 and has an appropriate distance from the lever 34, so that it can be placed on both the hinge 20 side and the opposite side of the hinge 20.
The hinge 20 side portion of the input port cover 28 is dropped into the input port 26 of the tank 12 by tilting relative to the lever 34 so as to increase and decrease the distance from the lever 34 at the side portions, respectively. Then, due to the weight of the lever 34 and the input port cover 28,
The input port cover 28 comes into an inclined state while contacting and engaging with the peripheral wall of the input port 26 at the portion on the side of the hinge 20, and the lever 34 moves the opposite side of the input port cover 28 from the hinge 20 at the end on the side opposite to the hinge 20. It is supported in an inclined position at the upper part of the tank 12 by applying it to the upper surface of the side part. The bonnet 16 swings around the hinge 20 toward the top of the inlet 26 of the tank 12, and hits the lever 34, so that the lever 3 is fully opened.
Supported by 4.

When closing the input port 26 with the input port cover 28, first hold the end of the lever 34 on the side opposite to the hinge 20.
After pulling up sufficiently to release the engagement of the input port cover 28 with the peripheral wall of the input port 26, the portion of the input port cover 28 on the hinge 20 side is pulled up from the input port 26. Next, the part of the input port cover 28 on the hinge 20 side is connected to the input port 2.
6, lower the lever 34, and place the lever 34 on the top side of the tank 12 so that the input port cover 28 closes the input port 26. Further, the end of the lever 34 on the side opposite to the hinge 20 is locked to the top surface of the tank 12 by the locking tools 36, 38, 40, and thereby the input port cover 28 is pressed downward via the lever 34, and the input Close the mouth 26.

〔Example〕

This invention will be explained below with reference to the embodiments shown in FIGS. 1 to 3.

FIG. 3 is an overall schematic diagram of the self-propelled speed sprayer 10 as an agricultural chemical spraying vehicle. The truck of the speed sprayer 10 includes a chemical tank 12 for storing chemicals inside, and a suction port facing the rear. A blower 14 is placed approximately at the center and at the rear, respectively. Furthermore, running and blower 1
A bonnet 16 covering the engine room of the driving engine No. 4 is disposed at the rear of the drug tank 12,
A nozzle 18 for ejecting the medicine is arranged in a gap between the blower 14 and the bonnet 16.

1 and 2 show the structure with the bonnet 16 open and closed, respectively.

The bonnet 16 is connected to the upper wall of the drug tank 12 by a hinge 20 at its end on the upper drug tank 12 side, and is rotatable around the hinge 20 so that the rear side opens upward. An input port 26 serving as an opening is provided on the upper wall of the drug tank 12 for inputting a drug into the drug tank 12, and is opened and closed by an input port cover 28. The support device 30 is the hinge 2
At the end on the 0 side, the drug tank 1 is connected via the pin 32.
The operating tool 3 includes a lever 34 as a support member rotatably fixed to the upper wall of the lever 34, and has a rotatable loop 36 at the end of the lever 34 on the side opposite to the hinge 20.
8 is swingably attached. The hook 40 is fixed to the upper wall of the drug tank 12 so as to be able to engage with the loop 36 of the operating tool 38. The pin 42 is the lever 3
4 and the input port cover 28 at the center in the longitudinal direction and the center in the diametrical direction, respectively, a bulge 44 is formed at the upper end, and a flange member 46 is attached at the lower end. The bulging portion 44 and the flange member 46 serve to prevent the lever 34 and the input port cover 28 from coming off the pin 42. pin 42
The hole 48 of the input port 28 through which the input port 28 passes has an inner diameter larger than the outer diameter of the pin 42, and the pin 42 is loosely fitted into the hole 48, so that the input port 28 cannot be rotated relative to the support device 30. It is supported by a lever 34 so as to be tiltable. Seals 50, 52 have holes 48
is fixed to the input port cover 28 on both sides of the pin 4.
The fluid tightness is maintained in the penetration portion of No. 2. The length of the pin 42 is appropriately large, and the input port lid 28 is the second one.
As shown in the figure, when the inlet 26 is closed, the distance between the flange member 46 and the seal 52 is α.

The operation of the embodiment will be explained.

When closing the input port 26, place the lower periphery of the input port cover 28 against the upper surface of the edge of the drug tank 12 that partitions the input port 26, and press the lever 34 against the pin 32.
, the end of the lever 34 on the operating tool 38 side is lowered, and the loop 36 is hooked on the hook 40 to lower the operating tool 38. As a result, the input port lid 28 is pressed against the upper wall of the drug tank 12, and the inside of the drug tank 12 is sealed.

When opening the bonnet 16 and performing maintenance inside the engine compartment, move the lever 34 to pin 3.
Rotate upward around 2. Along with this, the input port cover 28 opens the input port 26, lowers the pin 42 until it comes into contact with the flange member 46, and is rotated relative to the pin 42 by α formed between the lever 34 and the seal 50. Becomes able to move and swing freely. In this way, the input port cover 28 swings on the upper surface of the flange member 46, and at the edge on the hinge 20 side,
It is dropped into the input port 26 (range A in Figure 1),
It is locked to the peripheral wall of the input port 26, and the anti-hinge 20
The side edge contacts and locks the lower surface of the lever 34 (range B in FIG. 1), and as a result, the lever 34
is held at an inclined angle with the side opposite to the hinge 20 rising as shown in FIG. Bonnet 16 is pivoted about hinge 20 and lever 34
(range C in Figure 1), and the lever 34
It is supported in a fully open tilted position.

After completing the inspection of the engine room and closing the bonnet 16, pull the lever 34 slightly upward to bring the end of the input port cover 28 on the hinge 20 side out of the input port 26, and then close the input port cover. 28 hinges 20
The free end side of the lever 34 is swung downward around the pin 32 so that the side end does not fall into the slot 26 again. Then, operate the operating tool 38 to lock the loop 36 to the hook 40 (second
figure).

[Effect of idea]

According to this invention, in a case where the bonnet is swingably connected to the upper part of the tank via a hinge, the opposite side of the lever to the hinge is swung upwards, and the input port cover is closed, and the hinge side is connected to the top of the tank. The lever is held in the inclined state while being engaged with the peripheral wall, and the lever is placed on the upper surface of the input port lid at the end opposite to the hinge and held in the inclined state. Therefore, the bonnet is supported by the tilted lever and is fully opened, making inspection inside the engine compartment more efficient and reducing the number of parts by omitting the stay. Furthermore, since the fully open state of the bonnet around the hinge maintains an appropriate angle of inclination to the top wall of the tank, the load on the hinge due to the weight of the bonnet is reduced, and the Strength can be reduced.

[Brief explanation of drawings]

Figures 1 to 3 relate to an embodiment of this invention, Figures 1 and 2 are structural diagrams of the bonnet support structure showing the bonnet in open and closed states, respectively, and Figure 3 is a structural diagram of the bonnet support structure. FIG. 4 is a structural diagram of a device that supports the bonnet in a half-open state, and FIG. 5 is a structural diagram of a device that supports the bonnet in a fully open state. 12... Drug tank (tank), 16... Bonnet, 20... Hinge, 26... Inlet, 28...
...Insertion port lid, 34...Lever, 36...Loop (locking tool), 38...Operation tool (locking tool), 40...
Hook (locking tool), 42...Pin (connecting tool), 46
...Flange member (connector).

Claims (1)

[Scope of utility model registration request] A bonnet 16 is connected to the upper part of the tank 12 via a hinge 20 and can swing upwardly from the input port 26 at the upper part of the tank 12 by rotation at the hinge 20, and a bonnet 16 is rotatable at the end on the hinge 20 side. A lever 34 coupled to the top surface of the tank 12
and an input port cover 28 which is disposed below the lever 34 and can be applied to the top surface of the tank 12 to freely close the input port 26; Said input port lid 2
connectors 42 and 46 that interconnect the lever 34 and the input port cover 28 with a space between them;
When locked, the end of the lever 34 on the side opposite to the hinge 20 is releasably locked to the top surface of the tank 12 so as to press the input port cover 28 to the top surface of the tank 12 via the lever 34. Locking tool 3
6, 38, and 40.