JP3747556B2 - Industrial vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an industrial vehicle such as a forklift, and more particularly to an industrial vehicle including an engine hood and a counterweight to which a seat is fixed.
[0002]
[Prior art]
As shown in FIG. 5, this type of industrial vehicle, for example, a forklift, loads a load on a fork 52 provided on the front side of a vehicle body 51a of the forklift 51 and transports the load to a predetermined place. A counterweight 53 is provided on the rear side of the vehicle body 51a. When a load is placed on the fork 52, the center of gravity of the forklift 51 moves forward, and the rear side of the forklift 51 rises. For this reason, a counterweight 53 serving as a weight is provided on the rear side of the forklift 51. Thereby, the cargo handling stability of the forklift 51 and the running stability of the forklift 51 are maintained.
[0003]
An engine hood 54 is provided in front of the counterweight 53 so as to cover an engine (not shown), and a seat seat 55 is fixed on the engine hood 54. The engine hood 54 is rotatably connected to the counterweight 53 via a hinge member 56. The engine hood 54 is opened during engine inspection.
[0004]
[Problems to be solved by the invention]
In order to maintain the stability and the like of the forklift 51, it is necessary to make the counterweight 53 heavier, and the counterweight 53 becomes larger. In the conventional forklift, since the upper surface of the engine hood 54 and the upper surface of the counterweight 53 are formed at substantially the same height, the rear part of the vehicle body 51a is relatively long, and the turning radius of the forklift is increased. In order to improve the workability of the forklift, there is a demand to reduce the turning radius, and in order to satisfy this demand, the body length of the forklift 51 needs to be shortened. In order to shorten the vehicle body length of the forklift 51 while securing the weight of the counterweight 53, it is conceivable to make the counterweight 53 vertically long as indicated by a chain line in FIG.
[0005]
However, when performing work such as engine maintenance and inspection, the operator needs to open the engine hood 54. When the engine hood 54 is opened with respect to the forklift having the counterweight 53 that is vertically long, the seat 55 fixed on the engine hood 54 hits the counterweight 53 provided behind the engine hood 54 and the engine hood 54 There is a problem that a sufficient opening angle cannot be secured.
[0006]
Also, if the engine hood is opened to the side of the engine hood, it will not hit the counterweight. However, the opened engine hood becomes unstable. In addition, it is necessary to secure an extra working space for opening the engine hood during maintenance inspection work.
[0007]
On the other hand, if the position of the engine hood is raised in accordance with the height of the counterweight, the problem that the seat seat hits the counterweight when the engine hood is opened and the opening angle of the engine hood cannot be secured can be solved. However, the position of the seat is increased and the center of gravity of the forklift is increased. Therefore, the running stability of the forklift is lacking.
[0008]
The present invention has been made to solve the above problems, and an object of the present invention is to provide an industrial vehicle capable of reducing the turning radius and sufficiently securing the opening angle of the engine hood. is there.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problem, in the invention according to claim 1, the engine hood includes a seat hood to which a seat is fixed, and a counterweight disposed in the vicinity of the rear of the engine hood. An industrial vehicle opened to a counterweight side, wherein an upper end of the counterweight is provided to a position higher than the engine hood, and an upper surface of the counterweight is positioned at the seat seat corresponding position when the engine hood is fully opened. A recessed portion capable of accommodating a part of the seat is provided, and the recessed portion is also opened on the engine hood side, and is disposed below the seat seat in a state where a part of the seat seat is accommodated when the engine hood is fully opened. A storage space is formed so as to exist, and on the bottom surface thereof, a restricting portion extending in the left-right direction is formed on the engine hood side, The serial restricting portion communicating portion for communicating the inside and the outside of the recess is formed.
[0010]
In the invention described in 請 Motomeko 2, in the invention according to the first, bottom surface of the recess is formed such that inclined downward toward the engine hood side.
[0012]
In the invention described in claim 3, in the invention of claim 1 or 2, in the bottom surface of the recess, thus cushioning member is attached, according to the invention described in the claims, and the counterweight and Vertical Therefore, the vehicle body length of the industrial vehicle is shortened. For this reason, the turning radius of an industrial vehicle becomes small. Further, when the engine hood is opened, a part of the seat is accommodated in a recess provided on the upper surface of the counterweight, and the opening angle of the engine hood becomes larger than when there is no recess. Moreover, since the storage space exists in the recess even in the fully opened state of the engine hood, the recess can be used as an accessory case. And since the restriction | limiting part is provided in the engine hood side, when a recessed part is used as an accessory case at the time of closing of an engine hood, it will be prevented by the restriction | regulation part that an accessory will come out of a recessed part. Moreover, since the communication part is provided in the control part, even if rainwater enters into the recess, it flows down through the communication part.
[0013]
According to invention of Claim 2 , even if rainwater enters into a recessed part, it will flow down by inclination .
[0014]
According to the third aspect of the present invention, even if the seat hits the recess, the seat is less likely to be damaged.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
A first embodiment in which the present invention is embodied in a forklift will be described below with reference to FIGS.
[0016]
As shown in FIG. 1, a fork 2 is provided on the front side of a vehicle body 1a of a forklift 1 as an industrial vehicle. On the other hand, a counterweight 3 serving as a weight is provided on the rear side of the vehicle body 1a in order to ensure the stability of the forklift during the work of loading and transporting the load on the fork 2. The counter weight 3 is formed in an arc shape on the rear side. The counterweight 3 is formed vertically in order to shorten the length in the front-rear direction, and the upper end of the counterweight 3 is formed higher than the upper end of the engine hood 4. Further, a notch 3 b is provided on the front side of the counterweight 3. This counterweight 3 is formed by filling lead into a hollow body formed of an iron plate and having a predetermined outer diameter.
[0017]
The counterweight 3 has a recess 3 a formed on the upper surface near the engine hood 4. As shown in FIG. 2A, the recess 3a is formed by a substantially semi-cylindrical recess that is also opened on the engine hood 4 side. The bottom surface of the recess 3a is formed horizontally. The position where the recess 3a is provided is the position corresponding to the seat when the engine hood is fully opened, that is, when the opening angle of the engine hood where the upper surface of the engine hood 4 is vertical is 90 degrees, the rear upper end 5a of the seat 5 is It is provided so as to be in a position in contact with the bottom surface.
[0018]
An engine hood 4 is provided in front of the counterweight 3 so as to cover an engine (not shown), and a seat 5 is fixed on the engine hood 4.
[0019]
Two props 7 that support the head guard 6 are provided behind the engine hood 4. As shown in FIG. 2A, the support column 7 is disposed at a position corresponding to the notch 3 b provided in the counterweight 3.
[0020]
As shown in FIGS. 2A and 2B, the first bracket 8 is attached to the support column 7. The first bracket 8 is formed of a square plate. Moreover, it fixes to the support | pillar 7 by welding. On the other hand, a second bracket 9 is attached to the engine hood 4. The second bracket 9 is formed in an L shape and is fixed to the upper rear of the engine hood 4 by welding. The second bracket 9 is supported to be rotatable with respect to the first bracket 8 via a rotation shaft 10. The engine hood 4 can be opened to an opening angle of 90 degrees (a state where the upper surface of the engine hood 4 is vertical).
[0021]
Next, the operation of the forklift 1 configured as described above will be described.
When performing work such as engine maintenance and inspection, the operator opens the engine hood 4. As shown by a two-dot chain line in FIG. 1, when the engine hood 4 is opened, the engine hood 4 and the seat 5 are rotated backward about the rotation shaft 10. Then, the seat seat 5 is rotated until the upper rear portion 5a of the seat seat 5 comes into contact with the bottom surface of the recess 3a of the counterweight 3, and a part of the seat seat 5 is accommodated in the recess 3a. At this time, the opening angle of the engine hood 4 is approximately 90 degrees.
[0022]
Since the recess 3a is provided on the upper surface of the counterweight 3, the engine hood 4 is opened until the upper rear portion 5a of the seat seat 5 contacts the bottom surface of the recess 3a. For this reason, even if it is the forklift 1 which provided the upper end of the counterweight 3 to the position higher than the upper end of the engine hood 4, the opening angle of the engine hood 4 becomes large and it becomes easy to perform work, such as an engine maintenance check.
[0023]
Further, since the opening angle of the engine hood 4 is approximately 90 degrees, the center of gravity of the engine hood 4 and the seat 5 moves to the counterweight 3 side. Therefore, the engine hood 4 and the seat 5 are locked in the recess 3a, and it is not necessary to lock the engine hood 4 with a stay or the like.
[0024]
On the other hand, the counterweight 3 has a longitudinal length that is shorter than the upper end of the engine hood 4 although the length in the front-rear direction is shortened. For this reason, there is no problem in the role of the counterweight 3 as a weight. Therefore, the forklift 1 is stable during the cargo handling operation of the forklift 1. Further, the entire length of the vehicle body 1a is shortened by the length of the counterweight 3 in the front-rear direction, and the turning radius of the forklift 1 is decreased.
[0025]
The above embodiment has the following effects.
(A) Since the counterweight 3 is provided with the recess 3a, when the engine hood 4 is opened, a part of the seat 5 is accommodated in the recess 3a, and the engine hood 4 when fully opened is compared with the case where there is no recess 3a. The opening angle of increases.
[0026]
(B) Since the opening angle of the engine hood 4 is approximately 90 degrees, the engine hood 4 and the seat 5 are locked to the recess 3a, and it is not necessary to lock the engine hood 4 with a stay or the like.
[0027]
(C) Since the counterweight 3 is vertically long and the upper end of the counterweight 3 is formed higher than the upper end of the engine hood 4, the counterweight 3 can be used as a weight even if the counterweight 3 is shortened in the front-rear direction. There is no problem with the role. Therefore, the forklift 1 is stable during the cargo handling operation of the forklift 1. Further, by shortening the length of the counterweight 3 in the front-rear direction, the overall length of the vehicle body 1a is shortened, and the turning radius of the forklift 1 can be reduced. As a result, the workability of the forklift 1 is improved.
(Second Embodiment)
Next, a second embodiment will be described with reference to FIGS.
In this embodiment, the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Therefore, the following description will focus on the points different from the first embodiment.
[0028]
As shown in FIGS. 3A and 3B, this embodiment is different from the first embodiment in that the shape of the recess 3a is different.
The recess 3a is formed so that the accommodation space 11 exists below the seat 5 in a state where a part of the seat 5 is accommodated in the recess 3a when the engine hood 4 is fully opened. That is, as shown in FIG. 3A, a substantially semi-cylindrical recess is further provided at the bottom of the recess 3a on the engine hood 4 side. Accordingly, the bottom of the recess 3a has a step. On the bottom surface of the recess 3a on the engine hood 4 side, a protrusion 12 is formed as a restricting portion extending in the left-right direction on the engine hood 4 side. And the communication part 15 which connects the inner side 13 and the outer side 14 of the recessed part 3a is formed in the protruding item | line 12. As shown in FIG. The position where the concave portion 3a is provided is the same as in the first embodiment.
[0029]
In this embodiment, since the concave portion is further provided at the bottom of the concave portion 3a on the engine hood 4 side, the accommodating space 11 exists below the seat 5 even when the engine hood 4 is fully opened. For this reason, small items can be placed in the accommodation space 11 even when the engine hood 4 is fully opened.
[0030]
Further, since the protrusion 12 is provided on the engine hood 4 side, when the recess 3a is used as an accessory case, the accessory placed in the recess 3a is unlikely to come out of the recess 3a and is difficult to drop from the forklift 1.
[0031]
Furthermore, since the communication part 15 is provided in the protrusion 12, even if rainwater enters into the recessed part 3a, rainwater flows through the communication part 15 and falls out of the recessed part 3a.
According to this embodiment, in addition to the effects of the first embodiment, the following effects are obtained.
[0032]
(A) Even when the engine hood 4 is fully opened, the accommodating space 11 exists in the recess 3a, so that the recess 3a can be used as a small case.
(B) Since the protrusion 12 is provided on the side of the engine hood 4, when the recess 3a is used as an accessory case when the engine hood 4 is closed, the protrusion 12 can prevent the accessory from coming out of the recess 3a. It becomes hard to fall from 1.
[0033]
(C) Since the communication part 15 is provided in the ridge 12, even if rainwater enters the recess 3a, it does not flow through the communication part 15 and does not accumulate in the recess 3a.
In addition, embodiment is not restricted above, For example, the following cases may be sufficient.
○ The opening angle when the engine hood 4 is fully opened is not limited to 90 degrees, but may be opened to the extent that does not hinder maintenance and inspection work, and may be smaller than 90 degrees. In this case, a stay that is held in an open state is required. Therefore, the opening angle is preferably 90 degrees or more. When the angle is greater than 90 degrees, the width of the engine hood 4 needs to be narrower than the width of the column 7.
O You may form the bottom face of the recessed part 3a so that it may incline and descend toward the engine hood 4 side, for example, as shown to Fig.4 (a). In this case, even if rainwater enters the recess 3a, the rainwater does not flow down due to the inclination and does not collect in the recess 3a.
(Circle) you may attach the buffer member 16 to the bottom face of the recessed part 3a as shown in FIG.4 (b). Examples of the buffer member 16 include rubber and sponge. In this case, even if the seat 5 hits the recess 3a, the seat 5 becomes difficult to be damaged.
The shape of the recess 3a is not limited as long as a part of the seat 5 can be accommodated, for example, a hole formed by hollowing out only the position of the upper surface of the counterweight 3 where the seat 5 abuts. Also good. Moreover, the groove | channel extended in the front-back direction or the left-right direction may be formed in the upper surface of the counterweight 3.
The shape of the seat 5 is not limited to that in which the rear part of the backrest is inclined rearward, and for example, the rear part of the backrest may be formed perpendicular to the upper surface of the engine hood 4. In this case, when the engine hood 4 is fully opened, not only the upper end portion 5a of the seat 5 but also the back upper surface of the seat back 5 may come into contact with the bottom of the recess 3a.
In the second embodiment, a hole may be formed instead of the communication portion 15. The hole may be provided in the side of the recess 3a. Even in this case, rainwater flows down through the hole, and rainwater does not accumulate in the recess 3a.
The configuration of the counterweight 3 is not limited to the above, and the whole may be formed of lead or casting.
The engine hood 4 may be rotatably connected to the counterweight 3 via a hinge.
The ridge 12 may be any one that can lock a small article placed in the recess 3a and prevent the load from falling. For example, the protrusion 12 may be dotted with protrusions.
The first bracket 8 may be attached to the rear side of the engine hood 4 and may be attached so that the position of the rotating shaft 10 becomes higher, for example. In this case, as the position of the rotating shaft 10 rises, the seat 5 becomes difficult to contact the recess 3a of the counterweight 3, and the opening angle of the engine hood 4 increases.
[0034]
Hereinafter will be described together with effects technical ideas that can be grasped from the above embodiment.
(1) a d Njinfudo width is narrower than the strut between the width. In this case, the opening angle of the engine hood can be 90 degrees or more. Further, since the center of gravity of the opened engine hood and seat is moved to the counterweight side, it is not necessary to lock the engine hood with a stay or the like in the fully opened state.
[0035]
(2) the industrial vehicle is Ru forklift der. In this case, it is possible to provide a forklift that can reduce the turning radius and that can sufficiently secure the opening angle of the engine hood.
[0036]
【The invention's effect】
As described above in detail, according to the invention described in the claims, since it is provided a recess in the counterweight, when fully opened engine hood, a part of the seat it is received in the recess, when there is no recess The opening angle of the engine hood is larger than Further, since the counterweight is vertically long and the upper end of the counterweight is formed higher than the upper end of the engine hood, the length of the counterweight can be shortened while ensuring the weight of the counterweight. Accordingly, the vehicle body length of the forklift is shortened, and the turning radius of the forklift can be reduced. Even when the engine hood is fully open, there is a housing space in the recess, so that the recess can be used as an accessory case. In addition, since the restricting portion is provided on the engine hood side, when the recess is used as an accessory case when the engine hood is closed, the restricting portion can prevent the accessory from coming out of the recess, and it is difficult to fall off the forklift. Furthermore, since the communicating part is provided in the restricting part, even if rainwater enters the recessed part, it flows down through the communicating part and the rainwater is less likely to accumulate in the recessed part.
[0037]
According to the invention described in 請 Motomeko 2, well into rainwater into the recess flows down the slope, there is no rainwater accumulates in the concave portion.
[0039]
According to the third aspect of the present invention, even if the seat hits the recess, the seat is less likely to be damaged.
[Brief description of the drawings]
FIG. 1 is a partially broken schematic side view of a forklift according to a first embodiment.
2A is a partially broken schematic plan view of the vicinity of an engine hood, and FIG. 2B is a partially enlarged view of FIG.
3A is a partially broken schematic partial side view of a second embodiment, and FIG. 3B is a partially broken schematic partial plan view of the same.
FIGS. 4A and 4B are partially broken schematic partial side views in another embodiment. FIGS.
FIG. 5 is a side view of a conventional forklift.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Forklift as an industrial vehicle, 3 ... Counterweight, 3a ... Concave, 4 ... Engine hood, 5 ... Seat seat, 11 ... Storage space, 12 ... Projection ridge, 13 ... Concave inside, 14 ... Concave outside , 15 ... communication part, 16 ... buffer member.

Claims (3)

An engine hood to which a seat is fixed, and a counterweight disposed close to the rear of the engine hood, the engine hood being an industrial vehicle that is opened to the counterweight side;
The upper end of the counterweight is provided up to a position higher than the engine hood, and the upper surface of the counterweight is provided with a recess capable of accommodating a part of the seat in the position corresponding to the seat when the engine hood is fully opened. ,
The recess is also opened on the engine hood side, and is formed so that a housing space exists below the seat seat in a state where a part of the seat seat is housed when the engine hood is fully opened. An industrial vehicle characterized in that a restricting portion extending in the left-right direction is formed on the engine hood side, and a communicating portion is formed in the restricting portion to communicate the inside and the outside of the recess . The industrial vehicle according to claim 1 , wherein a bottom surface of the concave portion is formed so as to be inclined downward toward the engine hood side . Wherein the bottom surface of the recess, industrial vehicle according to claim 1 or 2 cushioning member is attached.

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