JP3073372B2 - Roof of industrial vehicle using freezer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof of an industrial vehicle using a freezer.

[0002]

2. Description of the Related Art Conventionally, for example, an industrial vehicle using a freezer (hereinafter referred to as an industrial vehicle) used for operations such as transporting, stacking, and unloading frozen goods between a low-temperature (0 ° C. or lower) freezer and an outside thereof. An industrial vehicle 7 shown in FIG. 7 is known. This industrial vehicle 7 has a cab 7
Above 0, a roof 1a (so-called head guard), which protects (guards) the driver from falling objects and also serves as a foothold for working at heights, is fixed and held by two pillars 71,71.

The roof 1a is separated from the substantially rectangular frame member 3 by an interval L4 in an area surrounded by the frame member 3 so that a driver can visually recognize the upper side during work using the industrial vehicle 7. Arranged in parallel, before and after the industrial vehicle 7 (arrows S1, S2)
A plurality of beams 4 extending in the direction
And formed.

[0004]

The roof 1a has an interval L4 at which the driver on the cab 70 of the industrial vehicle 7 can visually recognize the upper side, and furthermore, a guard and a height for protecting the driver from falling objects. It needs sufficient strength to be used as a scaffold when working in places. Therefore, the roof 1a is made robust by sufficiently increasing the thickness and width of the beam 4 previously connected to the frame member 3.

However, when the thickness and width of the beam 4 are increased in order to make the roof 1a sturdy, the heat capacity increases in proportion thereto. Therefore, once the roof 1a is cooled, it takes time to return to the outside air temperature. That is, when the industrial vehicle 7 having the roof 1a is moved from the inside of the freezer to the outside of the freezer, the low-temperature roof 1a is cooled to a low temperature.
Touches the outside air. Then, on the surface of each beam 4, the moisture contained in the outside air is cooled and a large amount of frost is generated and adheres.
However, since each beam 4 has a large heat capacity, it is difficult to return to the outside air temperature from a low temperature state, and frost continues to increase forever. In addition, the amount of dew condensation generated by each beam 4 returning to the outside air temperature is large. Then, frost and dew fall as water droplets 8 and fall to the driver's cab. For this reason, the clothes of the driver, the operation unit of the industrial vehicle, the feet, and the like are wet, and the workability is reduced.

[0006] It is an object of the present invention to provide a roof of an industrial vehicle using a freezer that solves the above-mentioned problems.

[0007]

A roof of an industrial vehicle using a freezer according to the present invention comprises a roof body provided above a cab of an industrial vehicle at a distance, a detachable recess and the recess.
The fits on at least a portion of the lower of the roof body using a mounting structure forming a projection, is composed of a small gutter less or a heat transfer coefficient of heat capacity than the roof body, 該樋, said roof Attach to the beam of the main body
A plurality of first gutters to be attached, and immediately below an opening end of the first gutter.
To be mounted on the roof body frame member at an angle
A second trough of one produced by using the transparent plate, and wherein Tona Rukoto.

The roof of the industrial vehicle using the freezer of the present invention is
It is composed of a roof body and a gutter. The roof body is
It is provided above the cab of the vehicle with an interval. This space is a space for securing a view so that the driver can visually recognize the upper side when performing work.

The roof body is made of a steel material having a sufficient strength because it has the above-mentioned space and needs to be used as a guard for protecting the driver from falling objects and a scaffold at the time of working at a high place. For this reason, the roof body has a large heat capacity and a large heat conduction coefficient. Further, as the roof main body, for example, a structure in which a plurality of beams arranged at a predetermined interval are provided between two opposing sides of a frame-shaped body having four sides, or a roof body arranged at a predetermined interval on a substantially rectangular thick plate It is possible to use a grid-like one provided with a plurality of window holes.

The gutter is provided below at least a part of the roof main body. When a large amount of frost and dew formed and adhered to the roof main body becomes water droplets, the gutter receives and collects immediately before dropping to a driver's cab, and collects it outside. It guides and drains. As a result, it is possible to prevent water droplets from falling on the cab of the industrial vehicle. The gutter may be provided below the entire roof body. Drops collected by the gutter can be drained directly to the outside of the vehicle from the gutter, or can be indirectly drained to the outside of the vehicle through a drain pipe connected to the end of the gutter. . The cross section of the gutter may have any shape as long as it can receive water drops dropped from the roof main body.

The gutter has a small volume so that the heat capacity is smaller than that of the roof main body in order to suppress the generation and adhesion of frost when the gutter is exposed to outside air after being cooled. That is, in the case of the roof body, it is ruggedly made for the purpose and the volume increases and the heat capacity increases, but in the case of the gutter, since the strength may be lower than that of the roof body, for example, it is formed by using a thin plate to reduce the volume. By doing so, the heat capacity can be made smaller than that of the roof body. According to a gutter with a small heat capacity, after cooling, if it comes in contact with the outside air and frost is generated on its surface, even if it adheres, the amount will only be a little white and it will become a water droplet even if the frost melts. Not enough to fall.

The gutter is preferably formed using a synthetic resin material having a smaller heat conduction coefficient and specific heat than a metal roof body. After cooling, dew condensation is prevented by reducing the generation of frost in the outside air, the amount of adhesion, and the temperature difference between the roof body and the outside air temperature. The gutter is preferably arranged with the entire area other than the slight mounting portion being slightly spaced from the roof body in order to effectively reduce direct cooling from the roof body.

Means for attaching the gutter to the roof body with a slight space therebetween include, for example, a beam of the roof body,
It is possible to use a mounting structure in which a detachable concave portion and a projection that fits into the concave portion are formed on one or the other of the gutters. Also, the wider the space between the gutters attached to the beams, the wider the field of view in which the driver can visually recognize the upper side, which is visually advantageous.

[0014]

The roof of the industrial vehicle using the freezer of the present invention has a roof main body provided at a distance above the cab of the industrial vehicle, a detachable concave portion, and a projection fitted into the concave portion.
Provided on at least a portion of the lower of the roof body using a mounting structure, is composed of a small gutter less or a heat transfer coefficient of heat capacity than the roof body, 該樋is
A plurality of first beams which are attached to the beam of the roof body at an angle
A gutter, and the roof body disposed immediately below an opening end of the first gutter.
Manufactured using a transparent plate that is attached to the frame member at an angle.
And one second trough which is characterized Tona Rukoto. And an industrial vehicle using a freezer (hereinafter referred to as an industrial vehicle)
Is used, for example, in a freezer at minus 55 degrees for various operations such as transporting, stacking, and unloading frozen goods.

When the industrial vehicle is moved from the inside of the freezer to the outside of the freezer, the roof main body having a low temperature of about minus 40 degrees comes into contact with the outside air. Then, the moisture contained in the outside air is cooled and a large amount of frost adheres to the surface of the roof body. This frost melts and becomes water droplets as the roof body returns to the temperature of the outside air. In addition, since the temperature difference between the roof body and the outside air temperature is remarkable, a large amount of dew is generated and water droplets are generated. The water droplets fall from the plurality of beams of the roof main body , but are received by the plurality of first gutters disposed directly below the beams , and
The water flows into the second gutter , is guided to the outside, is guided, and is drained.

Therefore, the water droplet does not fall on the cab of the industrial vehicle and does not fall on the driver. When the industrial vehicle is moved from the inside of the freezer to the outside of the freezer, frost also adheres to the cooled first and second gutters . But the first gutter
And since the heat capacity of the second gutter is small, the amount of frost adhering is
It is slight and even adheres white. For this reason, even if the frost melts, it does not reach the amount of dropping, so that the influence of water droplets is not observed. Further, since the gutter has a small heat conduction coefficient, the temperature difference between the first gutter and the second gutter and the outside air temperature is small and the amount of dew condensation is smaller than that of the roof main body under the same conditions as in the above case, No effect from water droplets.
Furthermore, even if the first gutter is attached to a plurality of beams, the driver's cab can see through the gap between the first gutter and the first gutter, so that the operation using the industrial vehicle can be performed without any trouble. it can.

Further, even if a gutter is attached to the beam, the upper part can be visually recognized through the space between the gutter from the driver's cab, so that the operation using the industrial vehicle can be performed without any trouble.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the roof of an industrial vehicle using a freezer according to the present invention will be described with reference to FIGS. The roof 1 of the embodiment shown in FIG. 1 has a roof main body 2 provided with an interval that allows the upper side to be visually recognized, and eight roofs mounted below the roof main body 2 and having a smaller heat capacity and a smaller heat conduction coefficient than the roof main body 2. Of the first gutter 5 and one second gutter 6.

The roof 1 is provided with two pillars 7 at a horizontal position above a cab 70 of an industrial vehicle 7 as shown in FIG.
It is fixed and held by 1, 71, and is used as a guard for falling objects above the driver's head and as a scaffold when working at heights. The roof body 2 includes a substantially quadrangular frame member 3,
It is arranged in a space surrounded by the frame member 3 at a predetermined interval and includes eight beams 4 connected to the inner peripheral surface of the frame member 3 at both ends, and is made robust.

The frame member 3 is about 12 mm thick and about 50 m wide.
m and a short left side 30 and a right side 31 extending in the front-rear direction (arrows S1 and S2) of the industrial vehicle 7 and the left and right sides of the industrial vehicle 7 (arrows Y1 and Y).
It is formed of a long front side portion 32 and a rear side portion 33 extending in the 2) direction. The frame member 3 has two right and left corners on the front side formed at right angles, and two left and right corners on the rear side formed in an arc. A fitting recess (not shown, the same applies hereinafter) for mounting the second gutter 6 is formed in the front side portion 32 of the frame member 3.

The eight beams 4 extend in the front-rear direction (arrows S1 and S2) in the space surrounded by the frame member 3, and are arranged in parallel at a predetermined interval so that the driver can visually recognize the upper side during the work. Have been. The first gutter 5 is attached to the surface 40 of each beam 4 at two positions close to the two connecting portions of the frame member 3 with the front side 32 and the rear side 33 at a part facing the first gutter 5. (FIG. 5 shows only one of the positions). Note that, of the two connecting portions, the fitting concave portion 41 at a position near the front side portion 32 of the frame member 3.
Is formed at a position shifted downward slightly so as to be slightly lower than the fitting concave portion 41 near the rear side portion 33. This is because when the first gutter 5 is attached to the beam 4, the first gutter 5
Is to slightly incline the front side of the vehicle 7.

The first gutter 5 is manufactured using a resin plate, for example, a hard vinyl chloride plate. This first gutter 5
As shown in FIG. 2 in cross section, a flat bottom 50 and a bottom 5
Sides 51, 5 opened slightly outward from both ends of 0
1 form a gutter groove 52. A side portion 51 of the first gutter 5,
51, symmetrical projections 53, 53 projecting horizontally toward the guide groove 52 at positions near both ends in the longitudinal direction are formed (see FIG. 5). The projection 53 of the first gutter 5,
53 is detachably fitted to the fitting recesses 41 of the beam 4.

Each first gutter 5 is attached to each beam 4 as shown in FIG. At this time, the inclination angle Θ1 of each first gutter 5 toward the front lower side with respect to the horizontal position P1 (see FIG. 3) is set to about 3 degrees. In addition, the bottom 50 and the side portions 51, 51 of each first gutter 5 have a distance of about 5 m from the beam 4.
m are maintained at intervals L1 and L2 (see FIG. 2) . Further, an interval L3 (see FIG. 4) is provided between the first gutters 5 so that the driver can visually recognize the upper side during the operation by the industrial vehicle 7.

As shown in FIG. 1, the first gutter 5 is mounted on each of the eight beams 4 at a forward angle of about 3 degrees with respect to the horizontal position P1. At this time, each first
An interval L3 is maintained between the gutters 5 so that the driver can visually recognize the upper side during the operation by the industrial vehicle 7. The second gutter 6 is manufactured using a transparent plate made of an acrylic-modified high-impact vinyl chloride resin. This second gutter 6 is shown in FIG.
As described above, a gutter groove 62 is formed by a flat bottom portion 60 and side portions 61, 61 which open slightly up from both ends of the bottom portion 60 and stand upright. As shown in FIG.
In the same manner as the first gutter 5 shown by, symmetrical projections (not shown, the same applies hereinafter) are formed on the inner surfaces facing each other.

The protrusion of the second gutter 6 is provided on the front side 32 of the frame member 3.
Is removably fitted into a not-shown fitting concave portion formed in the above.
At this time, as shown in FIG. 3 and FIG.
It disposed directly below the open end 5 4 of the first trough 5 of 8, and the inclination angle Θ2 toward the front lower side relative to the horizontal position P2 on the right side of the vehicle 7 is set to about 3 degrees. Further, the bottom 60 and the side portions 61 of the second gutter 6 are connected to the front side 3 of the frame member 3.
2 are maintained at intervals L1 and L2 of about 5 mm.
The second trough 6, as shown in FIGS. 3 and 4, is disposed directly below the open end 5 4 of the first trough 5 of 8, and about 3 degrees relative to the horizontal position P2 on the right side of the vehicle 7 Attach it while tilting downward.

The roof 1 of the embodiment configured as described above
The industrial vehicle 7 (see FIG. 6) equipped with is used for various operations such as transporting, stacking, and unloading frozen goods in a freezer at minus 55 degrees. Then, the roof 1 is cooled according to the working time of the industrial vehicle 7 in the freezer. And when the industrial vehicle 7 is moved from inside the freezer to outside the freezer,
The low-temperature roof 1 comes into contact with the outside air. At this time, eight beams 4
Because of its structurally large heat capacity, it is difficult to return to the outside air temperature, and the outside air in contact with its surface 40 is kept cooled for a long time.

As a result, the moisture in the cooled outside air is generated and adheres to the surface 40 of each beam 4 as a large amount of frost.
In addition, since the temperature difference from the outside air temperature is large, the amount of dew condensation is large.
The frost melts as the beam 4 returns to the temperature of the outside air, becomes water droplets 8 together with the dew, and falls from the surface 40 of the beam 4, but is received by the first gutter 5 disposed directly below the beam. . Next, the water 8 a guided along the slope of the gutter groove 52 flows toward the second gutter 6 installed on the front side of the industrial vehicle 7. Gutter groove 52 of first gutter 5
The water 8a that has flowed into the gutter groove 62 of the second gutter 6 is
2 to the right of the industrial vehicle 7 (see arrow Y1)
It is discharged outside.

The water drops 8 dropped from the eight beams 4 do not fall on the cab 70 of the industrial vehicle 7 and do not fall on the driver. Therefore, the clothes of the driver, the operation unit of the industrial vehicle, the feet, and the like do not get wet. When the industrial vehicle 7 is moved from the inside of the freezer to the outside of the freezer, frost is also generated on the cooled first gutter 5 and second gutter 6 gutter.

However, since the first gutter 5 and the second gutter 6 do not require strength, the thickness can be reduced, and the beam 4
Less heat capacity. The first gutter 5 and the second gutter 6, which have a small heat capacity, are cooled and then exposed to the outside air, and even if frost is generated on the surface thereof, only a small amount of white color is needed. Not enough to fall. Further, since the first gutter 5 and the second gutter 6 have small heat capacities, the time required to return to the outside temperature is short, the temperature difference from the outside temperature is small, and the amount of dew condensation is small. The first gutter 5 is hard
Because it is manufactured using a vinyl chloride plate,
Heat conduction coefficient and specific heat are smaller than
Protrusions 53, 53 that fit into the recesses 41, 41 of the beam 4 are formed.
From the roof body 2
Effectively reduce direct cooling. Also, the second
Gutter 6 is made of acrylic modified high impact vinyl chloride resin plate.
Heat transfer compared to the roof body 2
That the conductivity and specific heat are small,
Use a mounting structure with a projection that fits into the recess
To receive cooling directly from the roof body 2.
Effectively reduce.

For this reason, even if the dew condensation and the frost are melted, the amount of the water drops 8 does not reach the amount of the water drops 8, so that the influence of the water drops 8 is not observed. Even if the first gutter 5 is attached to each beam 4, the driver's cab 70 sets a distance L3 between the first gutter 5 and the first gutter 5.
(See FIG. 4), the upper part can be visually recognized, so that the operation using the industrial vehicle 7 can be performed without any trouble.

Therefore, according to the roof 1 of the embodiment, the workability of the industrial vehicle 7 does not need to be reduced.

[0032]

According to the present invention, a roof of an industrial vehicle using a freezer has a roof body provided at a distance above a driver's cab of an industrial vehicle, a detachable recess, and a projection fitted into the recess.
Provided on at least a portion of the lower of the roof body using the formed mounting structure is composed of a small gutter less or a heat transfer coefficient of heat capacity than the roof body,
The plurality of gutters are attached to beams of the roof body at an angle.
A first gutter of a book and the lug disposed immediately below an open end of the first gutter;
Using a transparent plate that is attached to the frame member of the
And one second trough manufactured Te, characterized Tona Rukoto.

For this reason, when the industrial vehicle in a cooled state moves from the inside of the freezer to the outside of the freezer, a large amount of frost is generated and adheres to the low-temperature roof body, and water droplets or melted water at the stage where the temperature returns to the outside air temperature are obtained. Even if the dew falls as water droplets, it is collected by a plurality of first gutters and further collected by a second gutter .
It flows into the gutter, is guided outside from the cab, and is discharged.
Therefore, water drops do not fall on the operator and the driver's cab, and the workability of the industrial vehicle using the freezer is not impaired.

Although frost also adheres to the plurality of low-temperature first and second gutters, since the heat capacity is smaller than that of the roof main body, the amount of water drops does not reach the level of falling. Further, the plurality of low temperature first and second gutters have small heat conduction coefficients.
(As described above, a synthetic tree with a small heat conductivity coefficient and specific heat
It can be formed using a grease material, or it can be
Use a mounting structure with a projection that fits into the recess.
To receive cooling directly from the roof body
) , The temperature difference from the outside air temperature is smaller than that of the roof body, so that no dew condensation is observed.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a main part of a roof of an industrial vehicle using a freezer according to a first embodiment.

FIG. 2 is an enlarged cross-sectional view taken along a line AA of FIG. 1 at a position where a first gutter is attached to a beam of a roof body.

FIG. 3 shows a beam and a frame member of the roof main body in FIG.
FIG. 3 is an enlarged cross-sectional view taken along line BB at a position where a first gutter and a second gutter are mounted.

4 is a sectional view taken along line CC in FIG. 3;

5 is an enlarged cross-sectional view showing a fitting portion between a beam in FIG. 2 and a first gutter attached to the beam.

FIG. 6 is a perspective view showing a state in which the roof of the first embodiment is used in an industrial vehicle using a freezer.

FIG. 7 is a perspective view showing a state where a conventional roof is used in an industrial vehicle using a freezer.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Roof 2 ... Roof main body 3 ... Frame member 4 ... Beam 4
0: Surface 5: First gutter 52: Gutter groove 6: Second gutter 6
2 ... gutters 7 ... industrial vehicles 70 ... driver's cab 71 ... pillars 8 ... water drops

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuki Honki 11th place, Nodacho, Kariya City, Aichi Prefecture Inside Aisin Kiko Co., Ltd. (56) References Fully open 1988-133590 (JP, U) Fully open Hei 2-86852 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66F 9/075

Claims (1)

(57) [Claims] 1. A roof body provided at a distance above a driver's cab of an industrial vehicle, a detachable recess, and fitted in the recess.
Circle provided on at least a portion of the lower of the roof body using a mounting structure forming a projection, is constituted from a small trough and, less or a heat transfer coefficient of heat capacity than the roof body, 該樋is of the roof body Plural mounted on a beam at an angle
A first gutter of a book and the lug disposed immediately below an open end of the first gutter;
Using a transparent plate that is attached to the frame member of the
And one second trough manufactured Te, Tona roof freezer used industrial vehicle, characterized in Rukoto.