JPH01229778A - Engine hood device for industrial vehicle - Google Patents

Abstract

PURPOSE:To prevent the accumulation of dust in an engine hood by providing longitudinally longer pans which are opened on a top plate side while extending nearly along side walls on the side walls inside an engine hood having these side walls along both side faces of an engine. CONSTITUTION:The engine room 10 of an industrial vehicle is surrounded by a frame 12 while housing an engine 30 inside, and an engine hood 42 is provided on the upper portion of the frame 12. The engine hood 42 has a pair of side walls 44 which extend along both side faces 32 of the engine 30, and end wall 48, and a top plate 52 extending along the top face 50 of the engine 30. In this case, a pair of pans 70 are fixed to the inner face of the engine hood 42. The pan 70 has a dust receiving portion 72 and fixed to the inner face of the side wall 44 at the installing portion 74 thereof by means of welding, etc. The dust receiving portion 72 extends along the side wall 44 while opening toward the top plate 52, and a housing box 80 is installed on one end portion thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an engine hood device for an industrial vehicle, and particularly to an engine hood device that airtightly covers an engine compartment.

Conventional Technology In addition to the engine, the engine room of an industrial vehicle such as a forklift truck is usually equipped with equipment such as a radiator fan and radiator for cooling the engine, a battery, and an air cleaner. Equipment generates noise when operating.

Therefore, as a noise prevention means, an engine hood device is provided above a vertically open frame surrounding the engine room. This type of engine hood device includes an engine hood and an engine hood seal, and the engine hood includes a pair of side walls extending along both sides of the engine, and an end extending along the end surface of the engine on the opposite side from the radiator fan. It has a wall and a top plate extending along the upper surface of the engine to cover the upper side of the engine, etc., and the gap between the lower edge of the engine hood and the upper surface of the frame is covered by an engine hood seal 6. There are some types that prevent the sound inside the engine room from leaking to the outside by substantially airtightly closing the engine room.

When the engine compartment is covered with this engine hood device, as the radiator fan rotates, outside air is sucked in through the opening at the bottom of the frame, cools the radiator, and then is discharged to the outside.

Problems to be Solved by the Invention However, since the lower opening of the frame is located near the road surface on which the industrial vehicle travels, the air sucked in contains dust. Most of this dust rides on the air flow inside the engine hood, passes through the radiator, and is discharged to the outside. However, on both sides of the engine, the dust that is removed from the air flow is collected on the side walls of the engine hood. It falls along the inner surface. As mentioned above, various equipment is installed in the engine room, so it is difficult to remove the dust that falls and accumulates on the upper surface of the frame, especially near the engine hood seal, and it takes time to remove the dust. This problem arises.

Another problem is that the accumulated dust may cause equipment in the engine room to malfunction.

In view of this problem, the present invention has been made with the object of preventing the accumulation of dust within the engine hood.

Means for Solving the Problems The gist of the present invention is an engine hood device including the engine hood and the engine hood seal,
A rectangular tray that opens toward the top plate and extends substantially along the side wall is provided near at least one of the pair of side walls inside the engine hood, with one side of the tray in close contact with the side wall or the top plate. That's true.

Effect: If you do this, the dust that is sucked in with the air will
It is avoided that the air falls out of the flow of air within the engine hood and along the inner surface of the side wall of the engine hood.

That is, by attaching the tray near the side wall inside the engine hood, the tray receives the dust that is carried by the flow of air that is diverted by the top plate of the engine hood and directed toward the side wall. The tray has a longitudinal shape that extends almost along the side wall, and the lower side portion is provided in close contact with the side wall or the top plate, so dust does not cross the tray and enter the side wall side, and the tray is securely closed. can be accepted.

The tray may be attached to either the side wall or the top plate, and is preferably provided along both of the pair of side walls, but may be provided only along one side wall. Further, the lengths of the tray in the longitudinal direction and the width direction can be changed as appropriate depending on the structure within the engine room.

Effects of the Invention By providing the tray near the side wall in this manner, dust is prevented from falling along the inner surface of the side wall and being deposited on the upper surface of the frame, so there is almost no need to perform dust removal work. Furthermore, since the means for achieving this goal are simple, the goal can be achieved at low cost.

Embodiment Next, an embodiment in which the present invention is applied to a forklift truck will be described in detail based on the drawings.

1 and 2, 10 is an engine room of a forklift truck, and this engine room 1
0 is surrounded by frame 12. frame 12
are a pair of side frames 14 and 16. that extend in the front-rear direction on both sides of the forklift trunk. The space between the front parts of the side frames 14, 16 includes a toe board 18, a cross member (not shown) connecting the rear ends of the side frames 14, 160, etc., and is open upward and downward. The rear wheel 20, only the position of which is indicated by a two-dot chain line in FIG. 2, is attached to the cross member via a suspension device (not shown).

An engine 30 is disposed within the engine room 10, and is supported by side frames 14, 16 via a mounting device (not shown).

The upper half of the engine 30 is made to protrude upward from the upper opening of the frame 12. Side frame 14.16
Above, along both sides 32 of the engine 30, an air cleaner 34 is placed on the right side in FIG. 1, and a battery 36 is placed on the left side. battery 3
6 are each connected to an engine 30.

A radiator fan 37 is attached to the rear of the engine 30, and a radiator 38 is provided behind the radiator fan 37 and supported by the frame 12. A counterweight 40 is further provided behind the radiator 38 and is fixed to the frame 12, and an exhaust port 41 is formed in the counterweight 40.

An engine hood 42 is provided above the frame 12. The engine hood 42 includes a pair of side walls 44 extending along both side surfaces 32 of the engine 30 and
The engine 30 includes an end wall 48 extending along an end surface 46 opposite to the radiator fan 37, and a top plate 52 extending along an upper surface 50 of the engine 30. Further, a radiator cover 54 is attached above the radiator 38.

A seat 56 for the driver to sit on is fixed on the top plate 52 of the engine hood 42, and a pair of opening/closing hinges 58 are attached to the end opposite to the end wall 48 side. . Since the other end of the opening/closing hinge 58 is fixed to the radiator cover 54, the engine hood 42 can be opened and closed by rotating around the hinge 58. A sound absorbing material 60 is attached to the entire inside of the engine hood 42.

The gaps between the lower edges of the pair of side walls 44 and end walls 48 of the engine hood 42 and the upper surfaces of the side frames 14 , 16 of the frame 12 and the toe board 18 are substantially hermetically closed by the engine hood seal 62 . The engine hood seal 62 includes a mounting portion 64 that is attached to the lower edge of the side wall 44 and the end wall 48, and a seal portion 66 that abuts on each upper surface of the frames 1 and 8. The engine hood 42 and the engine hood seal 62 constitute an engine hood device, and the engine hood 42 and the engine hood seal 62 constitute an engine hood device. Operation noise from the air cleaner 34 and the like is effectively prevented from leaking to the outside of the engine room 10. In addition, the engine hood 42 and the radiator cover 54
Seals 68 and 69 are also provided between the radiator cover 54 and the counterweight 40, respectively.

A pair of saucers 70 are fixed to the inner surface of the engine hood 42. As shown in FIG. 3, the tray 70 includes a dust receiving section 72 and a mounting section 74. The mounting portion 74 is attached to the engine hood 4 by spot welding, gluing, etc.
The dust receiving part 72 is a long dish-shaped part, and after the attachment part 74 is fixed, the dust receiving part 72 extends along the side wall 44 and the top plate 5
It is in an open state facing 2. This dust receiving part 7
A storage box 80 is attached to one end of 2. The storage box 80 is a container-shaped member, and has a dust receiving part 72 at one end.
It has an opening 82 that can be fitted with one end of the opening 82, and a pair of engaging arms 84 are formed on both sides of the opening 82. A groove 86 as shown in FIG. 5 is formed along the longitudinal direction inside each of the engaging arms 84, and a pair of hemispherical recesses 88 are formed on both sides of the groove 86. On the other hand, a protrusion 90 and a pair of hemispherical protrusions 92 are formed at the fitting part of the dust receiving part 72 with the storage box 80. When attaching the storage box 80 to the dust receiving part 72, the protrusion 90 into the groove 86, and the dust receiving part 72 is inserted into the opening 82 of the storage box 80.
When pushed in, each hemispherical protrusion 92 engages with each hemispherical recess 88 with elastic deformation of the engaging arm 84, and both are fixed.

When removing the storage box 80 from the dust receiving part 72,
When the storage box 80 is pulled out from the dust receiving part 72, the hemispherical protrusion 92 and the hemispherical recess 88 are disengaged.

In the engine hood device configured as described above, when the radiator fan 37 is rotated with the operation of the engine 30, air is sucked in from the lower opening of the frame 12. The air sucked into engine room 10
around the engine 30 at its end face 46 and side face 3
2, it flows from the end wall 48 side toward the radiator 38, passes through the radiator 38, and is discharged from the exhaust port 41 of the counterweight 40 behind it.

Most of the dust sucked in with the air is carried by this air flow and discharged to the outside from the exhaust port 41, but after rising inside the engine room 10, its direction is changed by the top plate 52, and the dust is removed from the side wall 44. Some dust is carried by the flowing air with a kinetic component toward . Conventionally, this dust fell along the inner surface of the side wall 44, but in this embodiment, it is received by the tray 70. That is, the tray 70 is attached to both side walls 44, and the tray 70 and the side wall 4 are connected to each other.
4, the dust heading toward the side wall 44 falls into the dust receiving part 72 of the receiving tray 70, or is returned to the engine 30 side, and is discharged from the exhaust port 41 along with the air flowing there. It is.

The dust collected in the dust receiving portion 72 of the receiving tray 70 is stored in the storage box 80 when the engine hood 42 is opened. That is, as shown by the two-dot chain line in Fig. 4,
When the engine hood 42 is opened by rotating around the hinge 58, the tray 70 also rotates together with the engine hood 42 and is brought into a nearly vertical state, so that the dust in the dust tray 72 is placed in the storage box below. It falls into the 80s. When a certain amount of dust has accumulated in the storage box 80, the storage box 80 can be removed from the dust receiving section 72 and the dust can be discarded.

Providing the tray 70 inside the engine hood 42 in this manner prevents dust from falling along the inner surface of the side wall 44 and accumulating on the upper surface of the frame 18.

Note that, like the saucer 96 shown in FIG.
8 can also be fixed to the top plate 52. Further, as shown in the figure, the receiving tray 98 may be provided only on the air cleaner 34 side, and the protrusion 100 may be formed on the sound absorbing material 60 on the battery 36 side to block the flow of air toward the side wall 44.

Furthermore, the tray inner body can be removably attached to the side wall or top plate. In that case, there is no need to provide a storage box in the tray, and if dust accumulates in the tray,
All you have to do is remove the saucer from the engine hood and remove the dust.

The engine hood 102 shown in FIG. 7 has an opening/closing hinge (not shown) attached to the lower end of the side wall 44 on the side of the air cleaner 34, and the other end of the hinge is fixed to the side frame. can be opened and closed in the direction of the arrow by rotating around the hinge. A rib 110 is provided on the dust receiving part 106 of the left receiving part 104 of the pair of receiving parts 104 in the engine hood 102 on the side opposite to the mounting part 108. The rib 110 is provided along the longitudinal direction of the dust receiving portion 106, and extends toward the opening side by a distance that does not hinder the receiving tray 104 from receiving dust. Further, a similar bulge 110 is provided on the mounting portion 108 side of the right engine hood 102 as well.

Therefore, when the engine hood 102 is opened, the left side wall 44 is positioned upward, and the saucer 104
is also rotated together with the engine hood 102. At this time, the dust in the trays 104 is collected to the right side of the dust receiving portion 106, but each tray 104
Since the rib 110 is attached to the lower portion of the tray 104, dust is prevented from falling from the tray 104. If the engine hood is to be opened in the direction opposite to the direction of the arrow, a rib may be provided on the opposite side of each tray to similarly prevent dust from spilling out. In this case, it is desirable that the entire tray 104 be removable from the engine hood 102.

In addition, the present invention can be practiced with various modifications and improvements based on the knowledge of those skilled in the art, such as changing the size of the saucer.

[Brief explanation of the drawing]

FIG. 1 is a rear sectional view (1-1 sectional view in FIG. 2) schematically showing the engine hood and frame of a forklift truck that is an embodiment of the present invention, and FIG. 2 is a side sectional view. be. FIG. 3 is a perspective view showing a tray attached to the engine hood of the forklift truck, and FIG. 4 is a side sectional view showing the engine hood with the tray attached. FIG. 5 is an enlarged front sectional view of the bone plate, and FIGS. 6 and 7 are partial rear sectional views showing an engine hood according to another embodiment of the present invention. 10: Engine room 12: Frame 30: Engine 37: Radiator fan 41: Exhaust port
42: Engine hood 44: Side wall 48:
End wall 52: Top plate 60: Sound absorbing material 62: Engine hood seal 70: Receiver 72: Dust receiver 74: Mounting part 80: Storage box 96: Receiver 98: Mounting part 102: Engine hood 104: Receiver 106: Dust receiver 108:
Mounting part 110: Replica applicant Toyota Industries Corporation No. 50 No. 6 = Fig. 7

Claims (1)

[Scope of Claims] Provided above a vertically open frame surrounding an engine room of an industrial vehicle, including: (a) a pair of side walls extending along both sides of the engine and an end face of the engine opposite to the radiator fan; (b) an engine hood that substantially airtightly closes a gap between a lower edge of the engine hood and an upper surface of the frame; In an engine hood device including a seal, a rectangular tray opening toward the top plate and extending substantially along the side wall is provided near at least one of the pair of side walls inside the engine hood, and one side of the tray An engine hood device for an industrial vehicle, characterized in that the engine hood is provided in close contact with a side wall or a top plate.