JPH115504A - Head guard top seat mounting structure for industrial vehicles - Google Patents

Abstract

(57) Abstract: A mounting structure for a top sheet (20) having a simple structure and having a drainage function is obtained. SOLUTION: Front and rear end portions of a top sheet 20 are rigid plates 21 and 22. Each rigid plate 21, 22
An upwardly open rain gutter portion 24 extending along the front and rear edges of the top sheet 20 is formed. At the bottom of each gutter section 24,
A mounting pin 25 is formed to be inserted and fitted into the mounting hole 17 of the side frame 12 in the head guard 10. A drain passage for communicating the rain gutter section 24 and the inside of the side frame 12 is formed in each mounting pin 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a top sheet on a top surface of a head guard of an industrial vehicle such as a forklift or a shovel loader.

[0002]

2. Description of the Related Art Conventionally, in an industrial vehicle such as a forklift, a head guard 40 as shown in FIG. 5 is provided so as to surround a seat in order to protect a worker sitting on the seat from falling objects or the like. . The head guard 40 is composed of pillars 41 erected around a seat and a head top 42 supported by the pillars 41. The head top 42 is located above the seat, and a metal frame member is formed in a lattice shape. It has a structure welded to. Then, the frame members before and after the left and right side frames 43 are suspended,
It is a channel-shaped rain gutter 44 opening upward.

Here, in the case of an industrial vehicle mainly used for outdoor cargo handling work, a top sheet 45 for rain and sun protection is put on the upper surface of the head top 42. The top sheet 45 is mainly made of a transparent vinyl sheet so as to secure a worker's upward view, and belts 46 with double rings provided at a plurality of locations at the front and rear edges thereof are attached to the rain gutter 4.
By winding the belt 47 provided at a plurality of locations on the left and right edges around the side frame 43 while being wrapped around the hooks 44a protruding from the head 4, the belt 47 is tensioned so that rainwater or the like does not collect. Be attached.

By the way, a drain pipe 4 is provided at the bottom of each rain gutter 44.
The drain hose 50 is attached to the drain pipe 48 via a clamp 49, and the drain hose 50 is inserted into a hose hole 51 formed in the pillar 41. As a result, rainwater or the like that has fallen onto the top sheet 45 and entered the front and rear rain gutters 44 is drained into the pillar 41 via the drain pipe 48 and the drain hose 50,
The water is drained downward along the inside of the pillar 41.

Incidentally, a similar structure is disclosed in Japanese Patent Laid-Open No. 6-2 / 1994.
This is disclosed in Japanese Patent Application Laid-Open No. 621989/92 and Japanese Patent Application Laid-Open No. 6-262990.

[0006]

Since the front and rear frame members of the head top 42 of the head guard 40 are rain gutters 44, not only the welding structure on the head guard 40 side is complicated, but also the rain gutter 44 is There is a problem such as obstructing the upper field of view.

In order to drain rainwater or the like that accumulates in the rain gutter 44, a drain pipe 48 must be provided at the bottom of the metal rain gutter 44, and a drain hose 50 must be attached to the drain pipe 48 via a clamp 49. However, the number of parts and the product cost are increased, and the drain hose 50 and the like are exposed to the outside, which impairs the appearance.

Further, a large number of belts 46, 47 and hooks 44a are required to attach the head guard 40, and it is necessary to attach a soft vinyl top sheet 45 to a predetermined position on the top surface of the head top 42 with a certain amount of tension. Therefore, the mounting operation is complicated and difficult.

[0009]

SUMMARY OF THE INVENTION Therefore, a top seat mounting structure for a head guard in an industrial vehicle according to the present invention has a top sheet which is put on a top surface of the head guard of the industrial vehicle. At least a part of the sheet is a rigid plate,
An upwardly open rain gutter extending along the edge of the top sheet is formed in the rigid plate, and a pin that is inserted and fitted into a mounting hole formed in the head guard is formed at the bottom of the rain gutter. This pin is characterized in that a drain passage communicating between the rain gutter section and the inside of the head guard is formed in the pin.

[0010] According to the above structure, rainwater or the like entering the rain gutter portion from the top sheet is drained into the head guard through the drain passage formed in the pin.

According to a second aspect of the present invention, the pin is a mounting pin for fixing the top sheet to the head guard by being inserted and fitted into a mounting hole formed in the head guard.

According to this configuration, the top sheet can be attached so as to cover the upper surface of the head top by inserting and attaching the attachment pins to the attachment holes.

Further, the invention according to claim 3 is characterized in that the rigid plate including the rain gutter and the mounting pin is integrally formed of a rigid resin material.

According to a fourth aspect of the present invention, the rigid plate includes:
It is characterized by being formed of a transparent rigid resin material.

The invention according to claim 5 is characterized in that at least both front and rear ends of the top sheet are rigid plates, and the rain gutters are formed along both front and rear edges of the top sheet. I have.

A sixth aspect of the present invention is characterized in that rigid plates are provided at both front and rear ends of the top sheet, and both rigid plates are connected by a transparent vinyl sheet.

The invention according to claim 7 is characterized in that the top sheet is constituted by one rigid plate, and a transparent vinyl sheet is provided in an opening formed in the rigid plate.

[0018]

According to the first aspect of the present invention, since the rain gutter portion is formed on the rigid plate of the top sheet, it is not necessary to make the frame constituting the head guard a rain gutter as in the prior art. The welding structure on the guard side can be simplified.

Also, since at least a part of the top sheet is a relatively hard rigid plate, the top sheet is made of a head top as compared with a conventional case where a vinyl top sheet is attached in a tensioned state. It can be easily and accurately attached to a prescribed position.

Further, a pin formed on the rigid plate is inserted and fitted into the mounting hole of the head guard, and drains rainwater or the like from the rain gutter to the inside of the head guard through a drain passage formed in the pin. can do. Therefore, in order to drain rainwater and the like from the rain gutter to the head guard side, a separate member such as a conventional drain hose or a clamp is not required, and the configuration is simplified, and the number of parts and product cost are reduced. It can be kept low.

Further, since the pins are inserted and fitted into the mounting holes of the head guard, the pins are not directly exposed to the outside as in the conventional mounting belt or drain hose, and the appearance quality is improved. .

According to the second aspect of the present invention, the hard plate can be fixed at a predetermined position on the upper surface of the head top by inserting and attaching the mounting pins formed on the hard plate to the mounting holes of the head guard. . In other words, the pin of the present invention has a drainage function of draining rainwater and the like from the rain gutter to the inside of the head guard, and also functions as a pin for attaching the top sheet to the head guard.

According to the third aspect of the present invention, the rain gutter and the mounting pin are formed integrally with the rigid plate, and it is not necessary to separately form the rain gutter and the mounting pin. It can be kept low.

Further, when the rigid plate is formed of a transparent resin material as in the invention of claim 4, the rigid plate does not obstruct the upper field of view of the worker. Here, if the frame member of the head guard is a rain gutter as in the related art, the rain gutter will obstruct the view even if the top sheet is transparent. When the portion is formed, the entire gutter portion becomes transparent, and furthermore, it is not necessary to provide the gutter function on the head guard side. Therefore, the frame member constituting the head guard is made small so as not to obstruct the view. It is also possible.

Further, when the front and rear ends of the top sheet are relatively rigid rigid plates, mounting pins are provided on both sides of each rigid plate, so that the top sheet can be provided. Can be accurately attached to the specified position of the top sheet in front, rear, left and right. In addition, since the rain gutters can be formed along both front and rear edges of the top sheet, it is possible to reliably prevent rainwater and the like from dripping from the front and rear of the top sheet.

According to the sixth aspect of the present invention, the transparent vinyl sheet provided between the rigid plates secures the worker's upper field of view more effectively.

According to the seventh aspect of the present invention, since the top sheet is a single relatively rigid plate, the top sheet does not bend during assembly, and is excellent in assemblability. Also, since the top sheet does not bend after assembly, a good attachment state can be maintained for a long time. Moreover, by providing a transparent vinyl sheet in the opening formed in the top sheet, an upward view can be effectively secured.

[0028]

1 and 2 show the structure of a typical embodiment of the present invention. As shown in FIG. 1, the head guard 10 is provided upright so as to surround an unillustrated seat in an industrial vehicle such as a forklift or a shovel loader.
The headtop 11 located above the seat has a structure in which frame members are welded in a lattice shape in order to protect an operator sitting on the seat from falling objects and the like. The top surface of the head top 11 is covered with a top sheet 20 for rain protection and sun protection.

The structure of each part will be described in detail.
Reference numeral 0 denotes an arch-shaped side frame 12 erected on the left and right sides of the seat, and a total of three cross frames 13, 1 of front, center and rear erected between the side frames 12.
4 and 15 and a plurality of reinforcing frames 16 erected at appropriate intervals between the cross frames 13, 14 and 15. Each side frame 12 is formed in an arch shape that curves from the front pillar portion 12a to the rear pillar portion 12c via the side top portion 12b, and has a structure in which the head top 11 is supported by the pillar portions 12a and 12c. ing.

The top sheet 20 has relatively rigid rigid plates 21 and 22 at both front and rear ends thereof, and a relatively soft transparent vinyl sheet 23 is welded between the rigid plates 21 and 22. . That is, the top sheet 20 is made of the rigid plate 2 by the vinyl sheet 23.
It has a structure in which 1 and 22 are connected.

Each of the rigid plates 21 and 22 is provided with a channel-shaped rain gutter portion 24 opening upward.
Are formed to extend in the vehicle width direction along the front and rear edges of the vehicle. That is, each rain gutter portion 24 is formed of a rigid plate 21,
2 are formed so as to be depressed, and both ends of the side wall 24 are formed integrally with the rigid plates 21 and 22.
The shape is dammed by a.

At the bottom of each rain gutter portion 24, hollow mounting pins 25 are formed at two locations on both left and right sides (only the front mounting pin 25 is shown in FIG. 1).
On the other hand, four mounting holes 17 are formed in the side frame 12 at positions corresponding to the mounting pins 25. The mounting pins 25 formed at the four corners of the top sheet 20 are inserted into and fitted into the mounting holes 17, respectively, so that the side frames 12 are fixed at predetermined positions on the upper surface of the head top 11.

Each of the rigid plates 21 and 2 having such a structure is described.
2 is integrally formed with a transparent rigid resin material including the rain gutter portion 24 and the mounting pin 25 in an integrated manner.

FIG. 2 is a sectional view showing a state after the top sheet 20 is mounted.

As shown in the figure, the mounting hole 17 is formed in a corner 12 d of the side frame 12 that curves from the pillars 12 a, 12 c to the side top 12 b, and penetrates the outer wall of the side frame 12. And faces the inside of the hollow side frame 12. On the other hand, the mounting pin 25 extends slightly inward from a position slightly inside the lowermost portion of the rain gutter portion 24 to a lower side, and a drainage passage 26 extending in the longitudinal direction penetrates the inside thereof.
A head 27 having a large diameter is formed on the tip side so as to engage with the peripheral portion of the mounting hole 17.

In the mounting state as shown in FIG. 2, the front and rear rain gutter portions 24 are mounted on the downwardly curved corner portions 12d of the side frame 12, and the rain gutter portions 2 are provided.
The lower surface of the top sheet 20 other than the top sheet 4 is in contact with the upper surface of the head top 11 of the head guard 10 over substantially the entire surface, so that the seating of the top sheet 20 is good and stable.

At this time, the drain gutters 2
4 and the inside of the side frame 12 communicate with each other,
It pours down on the upper surface of the top sheet 20, and the top sheet 20
Rainwater or the like that has entered the front and rear rain gutters 24 is discharged to the drain passage 26.
Then, the water is drained to the inside of the side frame 12, flows down along the pillar portions 12a, 12c of the side frame 12, and is appropriately drained to the outside.

According to the structure of the embodiment described above, the rain gutter portion 24 is formed on the rigid plates 21 and 22 of the top sheet 20, and the frame member constituting the head guard is a rain gutter as in the related art. Since there is no need, the welding structure on the head guard side can be simplified.

The front and rear sides of the top sheet 20 are relatively rigid rigid plates 21 and 22, and the mounting pins 25 provided on the left and right sides of the rigid plates 21 and 22 are attached to the head guard 10. Since the top sheet 20 is inserted and fitted into the hole 17, the top sheet 20 can be easily and accurately attached to the specified position of the head top 11. In addition, since the mounting pins 25 are not directly exposed to the outside unlike the conventional mounting belts and drain hoses, the appearance is good.

Then, rainwater or the like can be drained from the rain gutter portion 24 to the inside of the side frame 12 in the head guard via a drain passage 26 formed in the mounting pin 25. That is, the mounting pin 25 of the present embodiment functions as a mounting tool of the top sheet 20 as described above, and also has a function of draining rainwater or the like from the rain gutter portion 24 into the side frame 12. Therefore, unlike the conventional example, separate members such as a drain hose and a clamp are not required, and the structure is simplified, and practical effects such as reduction in the number of parts and product cost can be obtained.

Further, the rigid plates 21 and 22 are
4 and the mounting pin 25 are integrally formed of a rigid resin material, and it is not necessary to separately form the rain gutter portion 24 and the mounting pin 25, so that their manufacture is easy.

Further, since the rigid plates 21 and 22 are formed of a transparent resin material, the rigid plates 21 and 22 do not obstruct the upper field of view of the worker. In addition, since the rain gutter portion 24 and the mounting pin 25 formed on the rigid plates 21 and 22 are also made transparent, the rain gutter which is a frame member of the head guard does not obstruct the view as in the conventional example. Specifically, since it is not necessary to provide the cross frames 13 and 15 around the head top 11 with a rain gutter function, the cross frames 13 and 15 can be made thin so as not to obstruct the view.

Further, the vinyl sheet 23 is provided between the rigid plates 21 and 22. In other words, since the vinyl sheet 23 extends at the center of the top sheet 20 in the front-rear direction and over the entire length in the vehicle width direction, A wide upward view can be secured.

FIG. 3 shows another example of the top sheet. The top sheet 30 can be used by covering it on the head guard 10 in the same manner as the top sheet 20 of FIGS. Here, reference numerals obtained by adding 10 to the components corresponding to the components of the top sheet 20 described above are given.

The top sheet 30 is mainly composed of one rigid plate 31, and a transparent vinyl sheet 33 is welded to the periphery of the opening 31a so as to cover the opening 31a formed in the rigid plate 31. . Rigid plate 31
A rain gutter portion 34 which opens upward is formed at both ends of the front and rear sides of the gutter, and mounting pins 35 each having a drain passage formed therethrough are formed at two locations at the bottom of each rain gutter portion 34.

According to the structure using the top sheet 30, the same effect as the above-described structure using the top sheet 20 can be obtained. Because it is 31,
The top sheet 30 does not bend back and forth and right and left at the time of assembling, and the assembling work becomes extremely easy. In addition, since the top sheet 30 does not bend after assembly, a good attachment state can be maintained for a long period of time.

In the above embodiment, the top sheet 20 is mounted on the head guard 10 by the mounting pins 25. In addition, as in the structure of the other embodiment shown in FIG. By 39, the rigid plates 21 and 22 of the top sheet 20 may be more securely fixed to the head guard 10 side. In this case, the top sheet 20 is more securely attached to the head guard 10.
Can be attached to

The present invention is not limited to the structure of the embodiment described above. For example, rain gutters may be formed along both left and right edges of the top sheet 20 in FIG. May be provided with a ridge for preventing rainwater or the like from dripping.

[Brief description of the drawings]

FIG. 1 is a perspective view of a head guard and a top sheet before assembly according to an embodiment of the present invention.

FIG. 2 is a sectional view after the head guard and the top sheet of FIG. 1 are assembled.

FIG. 3 is a perspective view showing another top sheet according to the present invention.

FIG. 4 is a sectional view showing the structure of another embodiment according to the present invention.

FIG. 5 is a perspective view before assembling a head guard and a top sheet having a conventional structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Head guard 11 ... Head top 12 ... Side frame 17 ... Mounting hole 20 ... Top sheet 21,22 ... Rigid plate 23 ... Vinyl sheet 24 ... Gutter part 25 ... Mounting pin 26 ... Drain passage

Claims (7)

[Claims] An industrial vehicle has a top sheet that covers an upper surface of a head guard of a head guard, and at least a part of the top sheet is a rigid plate. An upwardly-opening rain gutter portion extending along the gutter is formed, and a pin is provided at a bottom portion of the rain gutter portion to be inserted and fitted into a mounting hole formed in the head guard. A top seat mounting structure for a head guard in an industrial vehicle, wherein a drain passage communicating the portion with the inside of the head guard is formed. 2. The pin according to claim 1, wherein the pin is an attachment pin for fixing the top sheet to the head guard by being inserted and fitted into an attachment hole formed in the head guard. Top guard mounting structure for head guards in industrial vehicles. 3. The top seat mounting of a head guard in an industrial vehicle according to claim 2, wherein the rigid plate including the rain gutter portion and the mounting pin is integrally formed of a rigid resin material. Construction. 4. The top seat mounting structure of a head guard in an industrial vehicle according to claim 2, wherein the rigid plate is formed of a transparent rigid resin material. 5. The top sheet according to claim 2, wherein at least both front and rear ends of the top sheet are rigid plates, and the rain gutters are formed along both front and rear edges of the top sheet. 5. The top seat mounting structure of the head guard in the industrial vehicle according to any one of 4. 6. The head guard according to claim 5, wherein rigid plates are provided at both front and rear ends of the top seat, and the rigid plates are connected by a transparent vinyl sheet. Top sheet mounting structure. 7. The industrial vehicle according to claim 5, wherein the top sheet is constituted by a single rigid plate, and a transparent vinyl sheet is provided in an opening formed in the rigid plate. The top guard mounting structure of the head guard.