JP2003192287A - Engine hood open-close device of forklift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an engine hood open-close device having a release lever at a position where a foot of an operator does not touch when the operator gets on and off a forklift and capable of reducing operation force of the release lever. <P>SOLUTION: A base part 21 of the release lever 20 of an engine hood is stuck through a side part inner panel 13 above a tank 17, the release lever 20 is directly connected to a hook member 25 for engaging with a engaging member 24 of the engine hood 9, and a tip end part 49 of the release lever is positioned near a step rear end collar 51 of the forklift. The tip end part 49 of the release lever is arranged so that it does not protrude forward of the step rear end collar 51. A guard member 53 is provided upright forward of the front collar part 52 of an upper member 15 of a tank. A through-hole 54 of the release lever 20 is provided at the guard member 53. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine hood opening / closing device for a forklift (vehicle).

[0002]

2. Description of the Related Art Conventionally, an engine room for accommodating a forklift engine is provided in a substantially central portion of a vehicle, and as an opening / closing device for an engine hood mounted on the upper portion of the vehicle, as shown in FIGS. There is something like the one shown. Figure 6
As shown in FIGS. 6A and 6B, the hook member 1 that engages with the engaging member 101 provided inside the engine hood 100.
02 is provided inside the engine room 103, and the hook member 1
A grip 104 for rotating 02 is provided on the front guard (dash panel) 105, and a flexible tube 106 connecting the grip 104 and the hook member 102 is arranged inside the front guard 105 and on the back side of the floor board 118. A structure is used in which the engine hood 100 is opened and closed by remote control.

That is, the grip 104 is moved backward (arrow Y
Direction), the inner cable 107 housed in the tube 106 moves forward, and the hook member 102 rotates clockwise to engage the engaging member 10.
The engagement (lock) with 1 is released. Hook member 102
Is rotatably supported by a support shaft 109 fixed to a support member 108, and is biased counterclockwise by a spring 110. The support member 108 is fixed to a portion of the side inner plate 111 forming a part of the frame structure, facing the engine room 103.

The side inner plate 111 is provided inside the vehicle of the side outer plate 112 forming the side surface of the frame structure with a certain space, and between the side inner plate 111 and the side outer plate 112. The fuel tank 113 is integrally formed. The fuel tank 113 is provided on the left side in the traveling direction of the vehicle, and includes a side inner plate member 111 forming a frame structure, a side outer plate 112, a tank upper member 114, and a front member 114a extending below the step member 115 and a step member 115. The fender member 116, the tank rear member 117, and the lower end edge of the side outer plate 112 are surrounded by the tank lower member 112a that is bent inward, and are welded and fixed oil-tightly. There is. A driver's seat 119 is provided on the upper surface of the engine hood 100.

[0005]

However, when the grip 104 is pulled abnormally strongly when the lock of the engine hood is unlocked, or when the engine hood is repeatedly opened and closed, it is installed in the flexible tube 106. The inner cable 107 that is present may stretch. Furthermore, when trying to increase the link ratio of the hook member 102, it is necessary to lengthen the pull amount (pull margin) of the inner cable 107. On the other hand, if the length is increased, the inner cable 107 is fixed to the inner cylindrical surface of the tube 106 and does not move smoothly, so that the grip operation may become heavy.

In order to eliminate these disadvantages, it is conceivable to increase the diameter of the inner cable 107 to increase the tensile strength. However, since the tensile strength is increased but the flexibility is reduced, it is not suitable for an inner cable that requires flexibility.

Further, instead of the cable system, an operating lever is provided on the front guard 105 so that the hook member 102
A remote-controlled structure in which a link and a rod are connected between and is also conceivable. However, a link or rod and a bracket for supporting them are required, and the floorboard 11
It is inconvenient to dispose the rod because the underside equipment and the like are provided on the back side of 8.

It is also conceivable to provide an operating lever near the engine hood 100. However, the position where the operation lever is provided forms a part of the fuel tank 113, and the front member 1
It becomes a site of the side inner plate member 111a in front of 14a. If the operation lever is provided at this portion, the operation lever is located above the step member 115, so that the foot portion may come into contact with the driver when getting on and off the forklift.

As another prior art, for example, Japanese Patent Laid-Open No. Hei 5
As described in JP-A-310150, a handle that is slidably inserted into a through hole formed in the upper surface of an engine hood and has a grip portion on the front surface side of the engine hood and a stopper on the rear surface side; A hook, one end of which is pivotally supported on the back surface of the hood and the other end of which engages with an engaging portion provided in the engine room, and a hook connected to the hook and the stopper, which engages when the grip moves toward the grip portion side. A structure having a link rod for releasing is known.

With this structure, when the engine hood is opened, the grip of the handle provided on the upper surface of the engine hood is lifted and the handle is moved upward until the stopper comes into contact with the back surface of the engine hood. The lock is released by. Therefore, in the case of a forklift having a driver's seat on the upper surface of the engine hood, the handle cannot be attached at a remote position where it does not interfere with the driver's seat.

The present invention has been made in view of the above points, and has an opening lever at a position where a foot portion does not come into contact with a driver when getting on and off a forklift, and an engine hood capable of reducing the operating force of the opening lever. An object is to provide a switchgear.

[0012]

According to a first aspect of the present invention, a side inner plate is provided on a vehicle inner side of a side outer plate forming a side surface of a vehicle with a constant interval, and the side outer plate is provided. In a forklift engine hood opening / closing device in which a tank is formed by providing a tank forming member between a plate and a side inner plate, and a step is formed in a front portion of the tank upper portion, in the side portion above the tank. The plate penetrates the base of the engine hood opening lever, and is directly connected to the hook member that locks the opening lever to the locking member of the engine hood, and the tip of the opening lever is located after the step of the forklift. The structure is located near the edge.

In this opening / closing device, when the engine hood is opened, the hook member is rotated clockwise by raising the opening lever to engage (lock) the engaging member provided inside the engine hood. ) Is released. Further, the engine room is opened by lifting and rotating the engine hood.

Next, when the engine hood is closed, the engine room is closed by rotating the engine hood downward, and the engine hood is pressed downward so that the hook member engages with the engaging member. Keep locked.

As described above, since the opening lever is directly connected to the hook member, the opening and closing operation of the engine hood can be performed with a lighter operating force than that of the conventional cable system by a series of operations.

Further, since the tip end portion of the opening lever is provided in the vicinity of the step rear end edge of the forklift, it is possible to avoid the tip end portion of the opening lever from contacting the foot portion when the driver gets on and off the vehicle.

As described in claim 2, it is preferable that the tip end portion of the opening lever is arranged so as not to project forward from the step rear end edge of the forklift.

With this configuration, even when the driver steps on and off the step of the forklift by stepping on the rear edge of the step and getting on and off, the tip of the opening lever moves forward from the rear edge of the step. Since it does not project to the right, contact with the foot can be properly avoided.

According to a third aspect of the present invention, it is preferable that a guard member is erected above the front edge portion of the upper member of the tank, and the guard member is provided with a through hole for the opening / closing lever.

With this arrangement, the periphery of the base of the opening lever can be surrounded and protected. Further, since only the grip portion of the opening lever is exposed to the outside from the guard member, the appearance is improved.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic side view of a forklift according to the present invention, FIG. 2 (a) is a side view showing a schematic structure of the engine hood opening / closing device and a frame (left side), and FIGS.
2 (b) is a cross-sectional view taken along the line AA of FIG. 2 (a), and FIG. 2 (c) is a plan view taken along the line BB of FIG. 2 (a). 3A is a detailed view of a portion C of FIG. 2A, showing an engaged state of the hook member, and a released state thereof is indicated by a chain line. FIG. 3B is a plan view of FIG. 3A. FIG. 4 and FIG. 4 show exploded perspective views, respectively.

As shown in FIG. 1, a frame 2 constituting a forklift (vehicle) 1 is provided on the left and right sides in the traveling direction, a mast 3 is provided on the front part, and a fork 4 is provided so as to be able to move up and down. There is. Front struts 5 on frame 2
Two a columns and two rear columns 5b are provided upright, and a head guard 6 is attached to the upper part. A front guard 7 is provided at the front end of the frame 2 and is linked to a floor board 8. An engine room for accommodating an engine is provided in an approximately central portion of the left and right frames 2, and an engine hood 9 for closing the engine room is provided. The engine hood 9 is configured such that a front end portion thereof abuts on the floorboard 8, a side end portion thereof abuts on a side portion outer plate 12 constituting a part of the frame 2, and a rear end portion thereof abuts on a rear portion of the vehicle body. The engine hood opening / closing device 10 can be opened / closed. A driver's seat 11 is provided on the upper end surface of the engine hood 9.

Next, the structure of the frame 2 of the vehicle shown in FIGS. 2 (a), 2 (b) and 2 (c) will be described. Frame 2
Is on the vehicle inward side of the side outer plate 12 forming the side surface of the vehicle,
The side inner plates 13 are provided at regular intervals, and the side outer plates 1
2 and the side inner plate 13 between the tank forming member (tank front member 14 and tank upper member 15, tank rear member 1
By providing 6), the fuel tank 17 is integrally formed as a part of the frame 2 of the vehicle. In this example, the left side portion is shown in the traveling direction of the vehicle, but the right side portion is provided with an oil tank with the same layout. Further, each element constituting the tank is oil-tightly joined by welding so that fuel does not leak.

The lower side edge of the side outer plate 12 is bent and extends toward the inside of the vehicle, and the leading edge portion of the side outer plate 12 is welded to the side inner plate 13 to form the lower portion of the fuel tank 17, which constitutes the lower part of the tank 1.
2a.

The upper portion and the front portion of the fuel tank 17 are composed of a tank front member 14 located at the tank front portion and forming a step horizontal portion 14a, and a tank upper member 15 located at the tank rear portion and having a step portion. Composed. The left and right edges of the tank front member 14 and the tank upper member 15 are
It is joined to the side outer plate 12 and the side inner plate 13 by welding. The rear portion of the fuel tank 17 is composed of the tank rear member 16.

The tank front member 14 has a step horizontal portion 14a extending in the horizontal direction and a vertical plate portion 14b extending below the front end edge of the step horizontal portion 14a. The vertical plate portion 14b and the side inner plate 13 are provided. On the other hand, the front fender 18 is attached by welding.

In order to form a step, the tank upper member 15 has a front lower plate 15a located at a lower position, a rear upper plate 15b located at a higher position, and a lower space between them. The intermediate plate portion 15c is connected to the front side in an inclined state. Further, the tank upper member 15 is
A vertical plate portion 15d (step rear surface portion), which extends further below the front edge of the lower plate portion 15a and is welded to the rear edge portion (step horizontal portion 14a) of the tank front member 14, is provided in front of the lower plate portion 15a. Has been done. The fact that the lower side is positioned closer to the front side means that the vehicle is inclined toward the inner side of the vehicle in the front-rear direction of the vehicle so as not to prevent the driver from getting in and out of the vehicle using steps. In this manner, the step horizontal portion 14a and the vertical plate portion 15d (step rear surface portion) form a step for getting on and off.

Next, the opening / closing device 10 for the engine hood 9
Will be described. The opening lever 20 for opening the engine hood 9 is arranged above the lower plate portion 15a at a lower position which forms the stepped portion of the tank upper member 15.
With this arrangement, the base portion 21 of the opening lever 20 is inserted into the through hole 22 formed in the side inner plate 13 described later.

As shown in FIGS. 3 (a), 3 (b), and 4,
The base portion 21 is bent at a right angle on the same plane as the grip portion 23 of the opening lever 20, and the tip end thereof is at the engine hood 9
Hook member 25 that engages with an engaging member 24 provided inside
Is directly connected to the lower end 26 of the. The lower end 26 has a through hole 26a.
The base 21 is perforated, the tip of the base 21 is projected, and the base 21 is fixed by welding. A cover member 23a is provided at the tip of the grip portion 23 of the opening lever 20. The engaging member 24 is U-shaped,
The front end side 27 engaging with the hook member 25 is inclined rearward and downward with respect to the base side 28, and the base side 28 is fixed to a support plate 29. Further, the engagement member 24 is attached to the bracket 30 fixed to the inside of the engine hood 9 by welding by screwing the stud bolt 32 through the washer 31. The upper end 33 of the hook member 25 has the engaging member 2
4 has a curved shape so as to be engaged with the front end side 27 of No. 4.
Further, the support shaft 35 fixed to the support member 34 is provided at the substantially central portion.
A through hole 36 through which the shaft is inserted is bored, and a bearing collar 37 is fixed to the side through which the support shaft 35 is inserted by welding. Support shaft 35
A pin hole 39 into which the snap pin 38 is fitted is provided at the tip of the pin. The support member 34 is provided with a through hole 40 into which the support shaft 35 is inserted, and the support shaft 35 is projected and fixed by welding.
The support member 34 has a substantially T-shape, and forms a corner portion 34 a for holding one end of the spring 41 provided between the hook member 25 and the support member 34, and a pilot hole pilot hole 43 for attaching to the bracket 42. Set up two places.

The bracket 42 has a recess 44 formed in the center thereof, and screw holes 46 which are concentric with the pilot hole 43 of the support member 34 and which are screwed into the stud 45 are provided on both sides of the recess 44.

Next, the assembly of the opening / closing device 10 will be described. The support shaft 35 of the support member 34 having the spring 41 fitted therein is inserted into the through hole 36 of the hook member 25 to which the opening lever 20 is fixed. Further, one end of the spring 41 is held by the corner 34 a of the support member 34, the support shaft 35 is inserted while compressing the spring 41 in the axial direction, and the snap pin 38 is fitted into the pin hole 39 via the washer 48. By locking the other end of the spring 41 to the hook member 25, the hook member 25 is urged counterclockwise. In this case, when the opening lever 20 is substantially horizontal, the hook member 2
5 is engaged (locked) with the engaging member 24 of the engine hood 9.
Make sure to keep the vertical direction in the state.

The opening / closing device 10 assembled in this way is
The position of the through hole 22 through which the base portion 21 of the opening lever is inserted is determined by the following factors in order to provide the side inner plate 13 on the left side of the vehicle in a portion facing the engine room 47.

The position of the through hole 22 in the front-back direction is shown in FIG.
As shown in the plan view of (c), the tip end portion 49 of the opening lever 20 is located in the vicinity of the rear end edge 51 of the step horizontal portion 14a (shown by diagonal lines) forming a part of the tank front member 14. To decide.

The vertical position of the through hole 22 is shown in FIG.
As shown in the side view of (a), it is determined that the hook member 25 is kept in the engaged (locked) state with the engaging member 24 of the engine hood 9.

When the position of the through hole 22 is determined in this way, the position of the bracket 42 to which the support member 34 is attached is also determined. Therefore, the opening lever 2 is inserted into the through hole 22.
0 (base 21) is inserted, and the bracket 42 is fixed by welding facing the engine room 47 of the side inner plate 13. After the bracket 42 is attached, the support member 34 is attached to the washer 50.
The support member 34 can be attached and the opening / closing device 10 can be provided by screwing the stud 45 into the screw hole 46 via. The side inner plate 13 is omitted in the side view of FIG. 3A in order to explain the opening / closing device 10 as a main part.

In the opening / closing device 10, when the engine hood 9 is opened, the hook member 25 is rotated clockwise by lifting the opening lever 20 as shown by the alternate long and short dash line, and the inside of the engine hood 9 is rotated. The engagement (lock) with the engagement member 24 provided on the is released. Further, as shown by the alternate long and short dash line in FIG.
The engine room 47 is opened by lifting up and rotating via the hinge 19 at the rear of the vehicle body. As the engine hood 9 is lifted, the hook member 25 is rotated counterclockwise by the bias of the spring 41, and the opening lever 20 returns to the original position (locked state) again.

When the engine hood 9 is closed, the engine room 47 is closed by rotating the engine hood 9 downward, and the engine hood 9 is pressed downward, so that the hook member 25 and the engaging member 24 are engaged. Engage and keep locked.

Since the opening lever 20 is directly connected and fixed to the hook member 25 as described above, the opening / closing operation of the engine hood 9 can be performed by a series of operations with a lighter operating force than that of the conventional cable system. it can.

Further, since the tip end portion 49 of the opening lever is provided near the step rear end edge 51 of the forklift,
It is possible to prevent the tip end portion 49 of the opening lever from coming into contact with the foot portion when the driver gets on and off the vehicle.

Next, as shown in FIG.
As shown in the plan view of (c), the forward and backward directions of the through hole 22 are adjusted so as not to project forward from the rear end edge 51 of the step horizontal portion 14a (shown by diagonal lines) forming a part of the tank front member 14. Determine the position.

With this arrangement, when the driver steps on and off the step of the forklift, even if the driver steps on and off the rear end edge 51 of the step, the tip 49 of the opening lever still has the rear end of the step. Since it does not project to the front from the edge 51, contact with the foot is appropriately avoided.

Furthermore, another embodiment is shown in FIGS.
This will be described with reference to (b) and FIG. 5 (c). 5A is a side view corresponding to FIG. 2A, showing a partial cross section in the FF direction of FIG. 5C, and FIG. 5B is the EE direction of FIG. 5A. Arrow view, FIG. 5 (c)
5A is a plan view of FIG. 5A. As shown in FIG.
A guard member 53 for protecting the base portion 21 of the opening lever 20 is erected on the front edge portion 52 of a by welding. The guard member 53 is similar to the front edge portion 52 in the side inner plate 13 of the vehicle.
It is inclined so as to be located closer to the front side in the vehicle front-rear direction. Furthermore, the guard member 53 also serves as a member that extends upward the vertical plate portion 15d forming the step rear surface portion, and both side edge portions are fixed to the side outer plate 12 and the side inner plate 13 by welding. Further, as shown in FIG. 5B, a through hole 54 for inserting the opening lever 20 and an air intake louver 55 for cooling the engine are provided. The through hole 54 is a long hole that allows the opening lever 20 to be operated up and down.

In this way, the lever 2 for opening is opened by the guard member 53 provided upright on the front edge portion 52 of the upper member 15.
The periphery of the base 21 of 0 can be surrounded and protected. Further, since only the grip portion 23 of the opening lever 20 is exposed to the outside from the guard member 53, the appearance is improved.

In the above-described embodiment, the opening / closing device 10 is provided on the left side of the vehicle, but it may be provided on the right side.

[0046]

The present invention is implemented as described above and has the following effects.

According to the first aspect of the present invention, since the opening lever is directly connected and fixed to the hook member, the engagement (lock) of the engine hood can be released by a series of operations for lifting the opening lever. . Therefore, the opening / closing operation of the engine hood can be smoothly performed with a lighter operation force than the remote operation using the conventional cable.

Further, since the tip of the opening lever is provided in the vicinity of the step rear edge of the forklift, it is possible to avoid the tip of the opening lever coming into contact with the foot when the driver gets on and off the vehicle.

According to a second aspect of the present invention, if the tip end of the opening lever is arranged so as not to project forward from the step rear end edge of the forklift, the driver puts his foot on the step of the forklift. Even when stepping on and off the rear edge of the step when getting on and off, the tip portion of the opening lever does not project forward from the rear edge of the step, so it is possible to appropriately avoid contact with the foot portion.

According to a third aspect of the present invention, if the guard member is erected above the front edge of the upper member of the tank and the through hole of the opening lever is provided in the guard member, the opening lever is opened. It can be protected by surrounding the base of the.
Further, since only the short grip portion is exposed to the outside from the guard member without projecting the opening lever for a long time, the appearance is improved.

[Brief description of drawings]

FIG. 1 is a schematic side view of a forklift according to the present invention.

2 (a) is a side view showing a schematic configuration of an engine hood opening / closing device and a frame (left side), and is taken along line DD of FIG. 2 (c).
The partial cross section to a direction is shown. 2 (b) is A-A of FIG. 2 (a).
FIG. FIG. 2C is a plan view taken along line BB of FIG. 2A and shows a partial cross section.

FIG. 3 (a) is a detailed view of a portion C of FIG. 2 (a), showing an engaged state of the hook member, and showing a released state by a chain line.
FIG. 3B is a plan view of FIG.

FIG. 4 is an exploded perspective view of a main part of the opening / closing device.

5 (a) is a side view corresponding to FIG. 2 (a), and FIG.
The partial cross section in the FF direction of (c) is shown. 5 (b) is shown in FIG.
A partial cross section is shown in the EE direction arrow view of (a). FIG. 5C is a plan view of FIG. 5A and shows a partial cross section.

FIG. 6 (a) is a schematic side sectional view showing a mounting state of the opening / closing device when the conventional engine hood is locked. FIG. 6B is a schematic perspective view of the opening / closing device when the lock of the conventional engine hood is released.

[Explanation of symbols]

2 frames 9 engine hood 10 Switchgear 12 side skin 13 Side inner plate 14 Tank front member 15 Tank upper member 17 Fuel tank 20 Release lever 21 Base of opening lever 22 Base hole 24 Engine hood locking member 25 hook members 34 Support member 35 spindle 42 bracket 49 Tip of release lever 51 step rear edge 52 Front edge of upper tank member 53 Guard member 54 Opening lever through hole

Claims (3)

[Claims] 1. A side inner plate is provided on a vehicle inner side of a side outer plate forming a side surface of the vehicle with a constant space, and a tank is formed between the side outer plate and the side inner plate. In a forklift engine hood opening / closing device in which a tank is formed by providing a member, and a step is formed in a front side portion of the tank upper part, in a side inner plate above the tank, a base part of the engine hood opening lever is provided. The opening lever is directly connected to a hook member that locks the locking member of the engine hood, and the tip end of the opening lever is located near the step rear end edge of the forklift. Forklift engine hood opening and closing device. 2. The engine hood opening / closing device for a forklift according to claim 1, wherein a tip end portion of the opening lever is arranged so as not to project forward from a step rear end edge of the forklift truck. 3. The guard member is provided upright above the front edge of the upper member of the tank, and a through hole for the opening lever is provided in the guard member. Forklift engine hood opening and closing device.