JPH0349792B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hood opening/closing structure for a vehicle equipped with a safety frame.

(Prior art) For example, a cargo-handling tractor equipped with a load device such as a lift device in the front of the vehicle body requires a heavy weight to be attached to the rear to balance the front weight of the vehicle body. In this case, the grill member is made of cast metal or the like and the weight is permanently installed.

For such cargo-handling tractors, when performing maintenance and inspection inside the bonnet, it is difficult to attach or remove the grille member, so the bonnet is divided into a top plate and a pair of left and right side plates, and the left and right side plates are separated from the top plate and the vehicle body. It is attached removably.

(Problems to be Solved by the Invention) When the cargo handling tractor is permanently equipped with a four-post safety frame that protects the control section, the pair of left and right supports of the safety frame may be arranged on the left and right side plates of the bonnet. In this case, the pillars may make it difficult to open and close the side panels. Also,
It is difficult to perform maintenance and inspection work above the engine by opening only the side plates, and although it is possible to attach and detach the top plate, it is also difficult to attach and detach the top plate.

(Means for Solving the Problems) The present invention utilizes the left and right columns 95 of the safety frame 14, and installs a horizontal shaft 109 protruding from the bonnet 22 in a vertical guide groove 106 formed in the columns 95. The bonnet 22 is inserted so that the bonnet 22 can be moved vertically and freely rotated when raised, and the bonnet 22 is
The above-mentioned problem can be solved by providing a holding means 113 between the safety frame 14 and the safety frame 14 for holding the holder in the upward rotational position A.

That is, the specific structure of the problem-solving means of the present invention is characterized in that the engine 5, the clutch housing 4, and the transmission case 3 are connected to form the traveling vehicle body 1, and the control section structure is provided at the front and rear of the engine 5, respectively. Arranging the member 103 and the grill member 11,
The bonnet 22 that covers the upper and left and right sides of the engine 5 is connected to the steering section component 103 and the grille member 1.
1, a four-post safety frame 14 is attached to the traveling vehicle body 1, and a pair of left and right columns 95 of the safety frame 14 are arranged on the left and right sides of the bonnet 22. In a running vehicle, a guide groove 106 in a substantially vertical direction is formed in the left and right pillars 95, and the bonnet 22 is inserted into the guide groove 106 so that it can move vertically and freely rotate in the raised position. A horizontal shaft 109 is protruded, and between the bonnet 22 and the safety frame 14 there is a holding means 1 for holding the bonnet 22 in the upward rotational position A.
13 is provided.

(Function) The safety frame 14 protrudes from the bonnet 22.
When the horizontal shaft 109 inserted into the guide groove 106 of the left and right struts 95 is raised within the guide groove 106, the bonnet 22 separates from and rises from the traveling vehicle body 1, the steering section component member 103, and the grille member 11. However, when the bonnet 22 is rotated around the horizontal shaft 109 at the position where the horizontal shaft 109 is raised, that is, at the position where it is engaged with the bearing portion 107 at the upper part of the guide groove 106, the bonnet 22 is rotated so that the steering section component 103 and the grille are rotated. It can be opened without being obstructed by the member 11,
Fully open the area around engine 5. In this state, by holding the bonnet 22 with the holding means 113 provided between the bonnet 22 and the top plate 105 of the safety frame 14, the bonnet 22 is held in the upward rotational position A, and the bonnet 22 is held above the engine 5 and on both the left and right sides. remains open.

(Example) Hereinafter, the present invention will be described in detail with reference to the illustrated example.

FIGS. 1 and 2 illustrate a traveling vehicle dedicated to cargo handling, which is equipped with a lift device 2 with a fork attached to the front of a traveling vehicle body 1. As shown in FIG.

The vehicle body 1 is constructed by joining a transmission case 3, a clutch housing 4, an engine 5, etc. in series in the front and rear, and a pair of left and right main frames 6 are arranged in the front and rear direction on the upper side of both sides of the vehicle body 1. There is. Further, on the vehicle body 1, an operation panel 7, a handle 8, etc. are provided at the front, a fuel tank 9, a driver's seat 10, etc. are provided at the center, and a grill member 11 which also serves as a weight is provided at the rear end. 12 is a front wheel, 13 is a rear wheel, and 14 is a safety frame.

As shown in FIGS. 3 and 4, the rear axle frame 15 that protrudes rearward is attached to both left and right sides of the engine 5. A rear axle case is connected to the rear axle frame 15 via a pair of front and rear axle brackets 16. 17
is swingably suspended around the center pin. A rear wheel 13 is attached to both left and right ends of the rear axle case 17 via gear cases 18 and 19 so as to be steerable around a king pin. The rear end of the rear axle frame 15 is connected to the left and right by a connecting plate 20,
A grill member 11 is attached to the rear end of this rear axle frame 15 via a connecting plate 20 and a mounting plate 21.

As shown in FIGS. 3 to 5, the grill member 11 is made of heavy weight cast metal or the like and serves as a weight. It is provided so as to hold and close the rear end opening side. The grill member 11 has a main body portion 23 corresponding to the shape of the bonnet 22, a projecting portion 24 projecting laterally from the main body portion 23, and a mounting portion 25 projecting rearward from the main body portion 23. A plurality of air introduction holes 26, which are long in the left-right direction, are formed in the main body part 23 in the vertical direction.

Each overhang 24 is attached to a mounting plate 27 at the rear end of the main frame 6.
The mounting portion 25 is mounted on the connecting plate 20 of the rear axle frame 15, and the mounting plate 21 is engaged with the bolt 29. Connecting plate 2
0 is engaged with the main body portion 23 by a bolt 30. A recess 31 is formed on the back surface of the lower end of the main body 23, and two upper and lower projecting walls 32, 33 are formed in the left and right direction within the recess 31, and a hit pin 34 is formed on the projecting walls 32, 33. are inserted in a removable manner, and these constitute a hitch device 35 for towing a trailer or the like.

Note that the rear edge of the bonnet 22 overlaps the rear side of the main body portion 23 of the grill member 11 from the outside. Inside the bonnet 22 there is a third
As shown in the figure, in addition to the engine 5, an air cleaner 36, a radiator 37, etc. are provided, and the engine 5 has a downward U-shape when viewed from the front so as to cover the upper side and left and right sides of the engine 5. The air cleaner 36
The intake port 3 is located on the air introduction hole 26 side of the grill member 11.
Place the mounting base 39 on the mounting section 25 with the
It is installed through. Note that a battery 40 may be placed on the placing portion 25.

The fuel tank 9 has a flat shape and is arranged above the front and rear center of the vehicle body 1, and is attached to a bracket 4 mounted on the left and right main frames 6 as shown in FIG.
1, and this fuel tank 9
is covered by a tank cover 42. The tank cover 42 has an L-shaped side surface, and the driver's seat 10 is mounted on the tank cover 42 via a support device 43.
is installed. The support device 43 is the link 4
4, 45, a cushion body 46, etc., and the driver's seat 10 can be adjusted back and forth and up and down.

Note that the tank cover 42 is attached to the left and right brackets 4.
An inverted U-shaped reinforcing member 47 provided astride 1
is also supported by the fuel filler port 48 of the fuel tank 9.
is projected upward from the rear end of the fuel tank 9, passing behind the driver's seat 10.

Reference numeral 101 denotes a heat shield plate provided between the engine 5 and the fuel tank 9, which stands upright from the vehicle body 1. Its upper and left and right sides are connected to the tank cover 42, and the bonnet 22 It holds the front edge of the. The tank cover 42, heat shield plate 101, etc. constitute a control part component 103 at the rearmost part of a control part 102 where the steering wheel 8 and the driver's seat 10 are located.

As shown in FIG. 7, the vehicle body 1 is engaged with the left and right main frames 6 via mounting brackets 49 on both sides of the clutch housing 4, and as shown in FIGS.
As shown in the drawings and FIG. 9, the front end side of the mission case 3 is also engaged with the left and right main frames 6 via a connecting plate 50.

That is, the left and right main frames 6 are connected to the connecting plate 5 at their front ends.
0, and this connecting plate 50 is connected by bolts 51.
is engaged with the front end surface of the transmission case 3. The front wheel 12 is supported on the end surface side of the transmission case 3 via a final reduction case 52, a front axle case 53, a front axle 54, and the like. Left and right front wheels 1
Front wheel fenders 55 are respectively provided on the inside of the main frame 6 so as to cover them from the inside, and each of the front wheel fenders 55 is fixed to an appropriate location on the main frame 6 or the like.

Further, between the left and right front wheel fenders 55, there is a step plate 56 that covers the upper part of the transmission case 3 on the front side from the tank cover 42, a front cover 57 that stands upward from the front end of the step plate 56, and a front cover 57 that extends upward from the front end of the step plate 56. An operation panel 7 bent rearward and downward from the upper end is provided to connect the left and right rear wheel fenders 55.

In the operation panel 7, a handle post 58 that supports the handle 8 is arranged at the left and right center, and various instruments 59 and a control lever 60 are arranged on both the left and right sides of the handle post 58. The control levers 60 are for the hydraulic control valve device 62 attached to the reinforcing member 61 on the rear side of the front lever 57, and there are a plurality of them in the left and right direction, and the lift device 2 side can be controlled by operating the control levers 60. It's becoming like that. The handle 8 is the rear wheel 13
for steering the rear wheels 13 through a mechanism not shown.
can be operated around the kingpin.

A step plate 63 for getting on and off is provided on the rear lower side of the front wheel fender 55, and a lever box 64 is arranged inside the front wheel fender 55 on the right side. A high/low speed switching lever 67, a rear wheel drive on/off lever 68, etc. are provided. On/off lever 6
Reference numeral 8 is for turning on/off the rear wheel drive system, and when the system is turned on, the front and rear wheels 12 and 13 are four-wheel drive, and when it is turned off, only the front wheels 12 are two-wheel drive.

The lift device 2 includes a pair of left and right fixed masts 69,
It consists of an elevating table 70 attached to this via an elevating mast or the like, and a fork 71 etc. detachably attached to the elevating table 70, and the fork 71 can be changed to a bucket or the like as necessary.

As shown in FIG. 10, the fixed mast 69 has a pair of mounting brackets 7 that protrude rearward on both sides of its lower end.
2 and 73, respectively, and between each pair of mounting brackets 72 and 73, a boss portion 74 on the vehicle body 1 side is detachably fitted from the rear and is detachably attached by a mounting pin 75. The boss portion 74 is the main frame 6
It is attached to the lower end of the support member 76 that hangs downward from the lower end. The support member 76 has a structure in which two parallel strips 77 and 78 are fixed to another strip 79 and connected to each other.
A boss portion 74 is attached to straddle 78.
The support member 76 is reinforced by a reinforcing member 81 fixed to the front axle case 53 via a mounting plate 80. The reinforcing member 81 is formed by engaging a strip material 82 and a reinforcing plate 83 in a T-shape.

The fixed mast 67 has connecting members 84 and 8 at the lower end where the mounting bracket 73 is located, as well as at the upper end and middle part.
5 and 86, and a tilt cylinder 89 is connected to the intermediate connecting member 86 via a bracket 87 and a pin 88.

There are a pair of tilt cylinders 89 on the left and right, and the cylinder bodies 90 are attached to a bracket 91 attached to the main frame 6 near the upper front part of the front axle 53a.
It is pivotally connected to by a pin 92. Note that the cover 57 is formed with a hole 93 through which the tilt cylinder 89 is inserted.

99 is a clutch pedal that connects and disconnects the clutch in the clutch housing 4, and 100 is a pair of left and right brake pedals, so that the left and right brakes incorporated in the left and right final reduction cases 52 can be operated simultaneously or independently. It's summery.

Clutch pedal 99 of the left and right fender 55
And in the part facing the brake pedal 100,
A guide member 98 is provided. An inclined guide surface 98a is formed on the upper part of this guide member 98 so as to approach each pedal 99, 100 side, so that even when the operator is about to step on the outer side of each pedal 99, 100, The foot is guided to the side of the pedals 99, 100 to prevent the pedal from being erroneously pressed. The guide member 98 may be formed integrally with the fender 55 by expanding it.

The safety frame 14 is a four-post type having a pair of left and right front posts 94 and a pair of left and right rear posts 95, and the four posts 94 and 95 are formed of, for example, square pipes or round pipes, and a ceiling frame is attached to the upper end of the safety frame 14. 105 is fixed and a canopy is stretched over the top frame 105 to serve as a sunshade device. The left and right front struts 94 are attached to the front end of the main frame 6 via a mounting plate 96, and the left and right rear struts 95
is a mounting plate 97 on the upper surface of the main frame 6 in the front-rear direction.
The engine 5 and the bonnet 2
It is located on the left and right sides of 2. Front and rear struts 94,
95 are inclined so that their upper ends approach each other, but may be perpendicular to the main frame 6.

A guide groove 106 extending substantially in the longitudinal direction (vertical direction) is formed on the opposing surfaces of the left and right rear struts 95, and the upper part of the guide groove 106 is bent in a V-shape to form a bearing portion 107. has been done.

A reinforcing member 108 is fixed to the front part of the bonnet 22 from the top part 22a to the left and right shoulders 22b, and a pair of left and right horizontal shafts 109, 109 protrude outward from both ends of the reinforcing member 108, concentrically. It is set up. The left and right horizontal shafts 109, 109 are inserted into the left and right guide grooves 106, are vertically movable and rotatable, and can also be supported by the bearing portion 107.

Reference numeral 111 denotes a mast and engagement tool provided on the rear side of the top portion 22a of the bonnet 22, and can be freely engaged with and detached from the engagement receiver 112. This engagement receptacle 112 is provided at the center of the back of the top frame 105, and holds the bonnet 22 in a position in which the horizontal shaft 109 is supported by the bearing portion 107 and the rear end is rotated upward, that is, in the first position.
When it is in the upward rotational posture A shown by the two-dot chain line in the figure,
The engagement tool 111 and the engagement receiver 112 engage with each other.

The engagement tool 111 and the engagement receiver 112 are the holding means 1 for holding the bonnet 22 in the upward rotational position A.
The holding means 113 may be used alone, but it is easier to hold the bonnet 22 with the assistance of the bearing 107, and the bonnet 22 can also be rotated more easily.

The engagement receptacle 112 is formed of a spring plate in the shape of an Ω, and elastically holds the engagement member 111 formed in the shape of a round bar by pushing it into the engagement receptacle 112.

The holding means 113, as shown in FIG.
The engagement tool 111 and the engagement receiver 112 are connected to the bonnet 2.
2 and the top frame 105 may be installed in the opposite manner, or,
Bonnet 22 and top frame 105 (or rear support 9
5), a hook may be provided on one side and a hook engaging portion may be provided on the other side.

The bonnet 22 has a lower width (distance between the lower ends of the side surfaces) wider than an upper width when viewed from the front, and the upper length is longer than the lower length when viewed from the side, so that it can be easily raised and rotated. Become. Further, the reinforcing member 108 may be made of a bar material, but it is better in terms of strength and design to form it from a strip plate and extend it to the lower ends of the left and right sides. Further, the reinforcing member 108 can also be provided on the inner surface side of the bonnet 22.

Furthermore, the horizontal shaft 109 may be directly planted on the bonnet 22 without providing the reinforcing member 108, or may be installed directly on the top 22.
It can also be formed by fixing one horizontal bar longer than the entire width of a. Further, although the horizontal shaft 109 can be formed as a straight shaft, it is preferable to form a large diameter retaining portion 114 at the end of the shaft. In this case, as shown in FIG. A retaining portion 1 is provided on the upper end side of the guide groove 106.
It is necessary to form 14 holes 115 for insertion and removal.

(Effect of the invention) In the present invention detailed above, the bonnet 2
A pair of left and right columns 95 of the four-post safety frame 14 arranged on the left and right sides of the frame 2 have guide grooves 1 in a substantially vertical direction.
06 is formed, and the bonnet 22 is provided with a protruding horizontal shaft 109 which is inserted into the guide groove 106 and is movable up and down and freely rotatable in the raised position. It can be moved upward, and after being raised, it can be rotated and held in the upward rotational posture A via the holding means 113.
Therefore, opening and closing of the bonnet 22 is extremely easy, and the engine 5 is exposed, making maintenance and inspection easier.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the present invention, in which FIG. 1 is a side view of the whole, FIG. 2 is a plan view thereof,
Figure 3 is a cutaway side view of the rear part of the vehicle, Figure 4 is a rear view of the same, Figure 5 is a cross-sectional plan view of the grille member attachment part, Figure 6 is a cutaway side view of the front part of the vehicle, and Figure 7 is the clutch housing. Figure 8 is a cutaway plan view of the rear of the vehicle, Figure 9 is a front view of the same cross-section, Figure 10 is a cross-sectional plane view of the lift device mounting part, Figure 11 is a rear strut and bonnet. 12 is a side view showing the holding means, and FIG. 13 is a side view showing a modification of the holding means. 1... Running vehicle body, 3... Mission case, 4
...Clutch housing, 5...Engine, 11
...Grill member, 14...Safety frame, 22...
... Bonnet, 95 ... Left and right struts, 103 ... Control part components, 106 ... Guide groove, 109 ...
Horizontal axis, 113... Holding means, A... Rising rotational posture.

Claims (1)

[Claims] 1 The engine 5, the clutch housing 4, and the transmission case 3 are connected to form the traveling vehicle body 1,
A control section component 103 and a grill member 11 are arranged at the front and rear of the engine 5, respectively, and a bonnet 22 that covers the upper part and the right and left sides of the engine 5 can be freely attached and detached in the vertical direction between the control section component 103 and the grill member 11. In a traveling vehicle with a safety frame, a four-post safety frame 14 is attached to the traveling vehicle body 1, and a pair of left and right columns 95 of this safety frame 14 are arranged on the left and right sides of the bonnet 22. A guide groove 106 extending substantially vertically is formed in the bonnet 22, and a horizontal shaft 109 is inserted into the guide groove 106 and is movable up and down as well as rotatable in the raised position.
A bonnet for a traveling vehicle with a safety frame, characterized in that a holding means 113 is provided between the bonnet 22 and the safety frame 14 to hold the bonnet 22 in the upward rotational position A. Opening/closing structure.