JP2001262624A - Tool box structure of construction machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool box structure of construction machinery capable of surely preventing engress of water inside thereof. SOLUTION: The tool box structure of construction machinery includes a tool box body (6) at least opened upward and, at the same time, forming shoulder sections (24) expanded in the outside direction on the circumferential edges (20) of the opening, a tool box cover body 8 forming flanges (30) so as to confront them with the shoulder sections on the circumferential edges and mounted on the tool box body to close the opening and weather strips (32) attached to the tool box cover body along the flanges and bringing lip sections (32b) into contact with the shoulder sections in a state to mount the tool box cover body on the tool box body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction machine,
More specifically, the present invention relates to a tool box structure of a construction machine.

[0002]

[Related Background Art] In construction machines such as hydraulic excavators,
A tool box for storing various tools is provided outside. Usually, the main body of the tool box is widely opened from the upper side toward one side, so that various tools can be easily taken in and out. A tool box cover (tool box lid) is placed so as to cover this opening.

However, with such a structure that the tool box cover is simply placed, even if the tool box cover is locked by using the lock mechanism, the tool box body and the tool box cover are locked. Since a gap is formed between the gaps, there is a problem that rainwater enters the tool box from the gap. If water infiltrates into the tool box in this manner, for example, when metal tools are stored, the tool box may rust and become unusable, which is not preferable.

[0004] Therefore, as shown in a vertical section in FIG.
And a shoulder 56 is formed, while a flange 58 extending along the shoulder 56 is formed around the periphery of the tool box cover 52 to increase the contact area between the tool box body 50 and the tool box cover 52. With wall 5
5, a technique for preventing rainwater from entering the tool box has been considered.

[0005]

However, since hydraulic excavators and the like mainly carry out mining work for earth and sand, a large amount of mud often adheres to the skeleton during the work, and after the work, such a large amount of mud adheres. Washing (or high-pressure steam washing, etc.) is carried out by vigorously spraying the mud with water.

However, when the water is jetted vigorously at a high pressure, the tool box body 50 and the tool box cover 52 are structured as shown in FIG. 7 and the tool box cover is locked. However, as shown by the arrow in the partial enlarged view of FIG. 8, the water that has entered through the gap may survive over the wall 55 and enter the tool box. In this case, the same problem as described above occurs, which is not preferable.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a tool box structure of a construction machine capable of reliably preventing water from entering inside. It is in.

[0008]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, a shoulder portion which is mounted on a construction machine, opens at least upward, and bulges outward at the periphery of the opening. A formed toolbox body,
A flange is formed on the periphery so as to face the shoulder, and a tool box lid is placed on the tool box body to close the opening, and a tool box lid is provided along the flange on the tool box lid, and the tool box lid is a tool. A lip portion is provided with a weatherstrip which is in contact with the shoulder portion while being placed on the box body.

Therefore, the lip portion of the weather strip comes into good contact with the shoulder portion of the tool box body in a state where the tool box lid is closed. Even when water is jetted from the direction, the jetted water is blocked by the weather strip, and the infiltration of water into the inside of the tool box is suitably prevented.

[0010] Further, when the weather strip is provided in this manner, the impact when the tool box lid is closed is reduced.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Referring to FIG. 1, there is schematically shown an external view of a medium-sized hydraulic excavator which is one of construction machines to which a tool box structure of a construction machine according to the present invention is applied. As is well known, a hydraulic excavator includes a traveling machine 1 on which a swivel 2, a driver's seat (cabin) 3, a bucket arm 4, and the like are placed.

In such a hydraulic excavator, a tool box 5 is provided at the front of the swivel 2 so as to be symmetrical with the cabin 3 with the bucket arm 4 interposed therebetween in consideration of easiness of work and the like. ing. This toolbox 5
Is a container for storing various tools therein, and is built so as to be integral with the swivel 2. Further, a tool box cover 8 is placed on the tool box 5 so as to cover an opening of the tool box body 6 in order to protect various tools from rain and the like. Specifically, the tool box cover 8 includes a pair of hinges 10 and 1.
0, for example, it is connected to the rear decorative wall 12,
By lifting the handle 9, the lid can be opened upward around the hinges 10, 10. The tool box cover 8 is made of, for example, a steel plate.
In order to gain sufficient height and volume, the section is formed in a U-shaped cross section so as to be convex upward.

Hereinafter, the tool box structure according to the present invention will be described in detail. Referring to FIG. 2, an enlarged view of the tool box main body 6 and the tool box cover 8 is shown with the tool box cover 8 opened. Also, with reference to FIG. 3, AA in FIG. A cross section along the line is shown in the same manner as in FIG. 7 with the tool box cover 8 closed, and further referring to FIG. 4, an enlarged view of a portion B in FIG. 3 is similar to FIG. Shown,
Hereinafter, description will be made with reference to FIGS.

As in the above-described conventional case, the tool box body 6 has a space 7 formed therein and is widely opened from the upper side to one side, so that various tools can be easily taken in and out. I have. The peripheral edge 20 of the opening of the tool box body 6 is lowered by one step over the entire circumference.
2 is formed, and further extends outward to form a shoulder 2
4 are formed. On the other hand, a flange 30 is formed on the periphery of the tool box cover 8 so as to extend outward along the shoulder 24 except for the side where the hinges 10 and 10 are located.

In the tool box structure according to the present invention, a weather strip 32 is provided along the flange 30 as shown in FIG. That is, when the tool box cover 8 is closed, the weather strip 32 is attached along the flange 30 such that the tip of the lip 32b of the weather strip 32 contacts the shoulder 24 of the tool box body 6. .

More specifically, as shown in FIG. 3, the weatherstrip 32 has an elastic lip made of a relatively soft rubber member having a triangular cross section on a grip portion 32a made of a relatively hard rubber member having a U-shaped cross section. The grip 32 a is attached to the tool box cover 8 so that the grip 32 a is inserted into the flange 30.

The weather strip 32 includes:
Here, a solid material in which urethane or the like is loaded as a core material inside the lip portion 32b is used.
b may be hollow. When the weather strip 32 is provided on the periphery of the tool box cover 8 in this manner, when the tool box cover 8 is closed, the tip of the lip portion 32b contacts the shoulder 24 of the tool box body 6 while being pressed. That is, the opening of the tool box body 6 is completely closed, and the internal space 7 is closed. The tool box 5 is provided with a lock mechanism (not shown) in conjunction with the handle 9. However, the closed state is set regardless of whether the lock mechanism is locked or not. Achieved by a weight of eight.

Then, as described above, the weather strip 3
When the opening of the tool box body 6 is completely closed by the tool box cover 8 having the
As shown in (2), even when the tool box 5 is washed (or high-pressure steam washing or the like) by rushing water from the lateral direction with the hose 40, the water is completely shut off by the weather strip 32. Then, as shown by the arrow in the figure, it flows down the side wall of the tool box body 6.

That is, the weather strip 32
The cleaning water is prevented from entering the tool box cover 8, and thus from entering the space 7 through the opening of the tool box body 6 over the wall 22. When the water pressure injected from the hose 40 is high and considerably strong, the elastic force of the lip portion 32b loses the water pressure, and water may enter the tool box cover 8 regardless of the presence of the weather strip 32. It is possible, but even in such a case, the water force is
b. Therefore, the intruded water does not climb over the wall 22 and enter the space 7.

That is, according to the tool box structure of the present invention, the provision of the weather strip 32 on the periphery of the tool box cover 8 can sufficiently prevent water from entering the tool box cover 8. The presence of the wall 22 can reliably prevent the water from entering the space 7 in the tool box body 6. Thereby, various tools stored in the tool box 5 can be prevented from getting wet, and rust of various metal tools can be suitably prevented.

Also, as described above, the tool box cover 8
When the weather strip 32 is provided on the peripheral edge of the tool box cover 8, the flange 30 does not come into direct contact with the shoulder portion 24, and the impact when the tool box cover 8 is closed is reduced. By the way, in addition to the above-mentioned medium-sized hydraulic shovels, there are hydraulic shovels having different sizes such as large and small, and the size, particularly the width, of the tool box main body 6 is accordingly different. On the other hand, there is a demand to share parts, and for example, sharing of the large and medium sized tool box covers 8 and the medium and small sized tool box covers 8 has been considered.

However, when trying to share the tool box cover 8 as described above, if the width of the tool box main body 6 varies according to the size of the hydraulic excavator, the tool box cover 8 may be, for example, large. In this case, there is a problem that the size is slightly larger for the medium size and slightly larger for the small size if the size is adjusted to the size of the medium size. That is, referring to FIG. 5, the tool box 5 ′ of the small excavator provided with the same tool box cover 8 as that of the above-mentioned medium-sized excavator has the tool box cover 8 similarly to the case of the above-mentioned medium-sized excavator of FIG. 3. It is shown in a closed state. Referring to FIG. 6, an enlarged view of a portion C in FIG. 5 is shown in the same manner as in FIG. 4 described above. When the small excavator 8 is used in common with the small excavator, the tool box cover 8 has a marginal size with respect to the width of the tool box body 6 'of the small excavator, and the peripheral edge of the tool box cover 8 has a shoulder 24'. Curvature of the corner (corner R)
It will extend to the part marked with.

However, if the weather strip 32 is provided on the periphery of the tool box cover 8,
As shown in FIGS. 5 and 6, even if the peripheral edge of the tool box cover 8 is located at the corner R of the shoulder portion 24 ', the tip of the lip portion 32b can be satisfactorily placed on the shoulder portion 2'.
4 '. Thus, the lip portion 32
If the tip of b comes into contact with the shoulder 24 ', the opening of the tool box body 6' will be completely closed, as in the case of the medium-sized hydraulic excavator, and the internal space 7 'is good. Is closed. Thereby, the hose 4
Even when the tool box 5 'is washed (or high-pressure steam washing or the like) by vigorously spraying water from the side by means of 0, as shown in FIG. It is completely shut off and runs down the side wall of the tool box body 6 'as shown by the arrow in the figure.

That is, when the weather strip 32 is provided on the periphery of the tool box cover 8 as in the tool box structure of the present invention, even if the width of the tool box main body is different, the tool box can be secured while maintaining watertightness of the tool box. There is also an advantage that the components of the box cover 8 can be shared, thereby making it possible to significantly reduce costs.

In the above-described embodiment, the flange 30 is provided on the side of the tool box cover 8 where the hinges 10 and 10 are provided.
However, this is because water does not fly from the decorative wall 12 side during cleaning in order to prevent interference with the opening peripheral edge 20 when the tool box cover 8 is opened and closed, If possible, it is preferable to form a flange 30 on the side where the hinges 10 and 10 are present and to attach a weather strip 32 thereto. That is, the weather strip 32 may be provided all around the tool box cover 8. As a result, tool box 5
Is further improved.

[0026]

As described above in detail, according to the tool box structure for a construction machine according to the first aspect of the present invention, the weather strip is provided on the periphery of the tool box cover for closing the tool box body mounted on the construction machine. When cleaning construction machinery, etc., even when water is sprayed from the lateral direction toward the tool box, the sprayed water can be blocked by the weather strip, and inside the tool box. Water can be prevented from entering.

Thus, even when, for example, metal tools are stored in the tool box, rust of these metal tools can be suitably prevented. Further, by providing the weather strip, it is possible to reduce the impact when the tool box lid is closed.

[Brief description of the drawings]

FIG. 1 is a schematic view showing the appearance of a medium-sized hydraulic excavator which is one of construction machines to which a tool box structure for a construction machine according to the present invention is applied.

FIG. 2 is an enlarged view showing the tool box in FIG. 1 with a tool box cover opened.

FIG. 3 is a diagram showing a cross section along the line AA in FIG. 2 with the tool box cover closed.

FIG. 4 is an enlarged view of a portion B in FIG. 3;

FIG. 5 is a view showing a tool box of a small excavator provided with the same tool box cover as that of a medium-sized excavator, similarly to FIG. 3;

FIG. 6 is an enlarged view of a portion C in FIG. 5;

FIG. 7 is a view showing a vertical section of a conventional tool box.

FIG. 8 is a partially enlarged view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling machine 2 Revolving base 5, 5 'tool box 6, 6' Tool box main body 7, 7 'space 8 Tool box cover (tool box lid) 20 Opening periphery 22 Wall 24, 24' Shoulder 30 Flange 32 Weather strip 32a gripper 32b lip

Claims (1)

[Claims] 1. A tool box body mounted on a construction machine and having at least an upward opening and a shoulder bulging outward at a periphery of the opening, and a flange formed at the periphery to face the shoulder. A tool box lid mounted on the tool box main body to close the opening; and a state in which the tool box lid is attached to the tool box lid along the flange, and the tool box lid is mounted on the tool box main body. And a weatherstrip, wherein the lip portion contacts the shoulder portion.