JP3107984B2 - Construction machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hydraulic excavator,
The present invention relates to a construction machine such as a hydraulic crane, and more particularly to a construction machine having a storage box on a main body frame.

[0002]

2. Description of the Related Art FIGS. 3 to 5 show a hydraulic shovel as an example of a construction machine according to the prior art.

[0003] In the drawings, reference numeral 1 denotes a lower traveling body, and 2 denotes an upper revolving body as a working machine main body which is rotatably mounted on the lower traveling body 1 via a revolving device (not shown). The revolving superstructure 2 includes a main body frame 3, a machine room 4 provided on the main body frame 3, an operator cab 5 provided on the main body frame 3 at a front left side of the machine room 4, And a counter weight 6 attached to the rear part of the main body frame 3 located at the rear side of the chamber 4. A storage box 15, which is located at the front right side, is attached to the main body frame 3. ing. A boom 7A, an arm 7B, a bucket 7C
A working device 7 is provided so as to be able to ascend and descend, and the working device 7 performs a work of excavating earth and sand.

[0004] As shown in FIG. 4, the main body frame 3 has a pair of center frames 8, 8 extending frontward and rearward at the center of the main body frame 3, and a width direction of each center frame 8. A pair of side frames 9, 9 extending outward and frontward and rearward and extending in the width direction to connect the center frames 8 and the side frames 9 are connected in a row in the front and rear directions. A plurality of overhang beams 10,
5, a bottom cover 11 that covers the entire surface from the lower surface to the front surface, and an upper cover 12 that covers the upper surface on the front right side.
Is formed with a square hole 12A into which an overhang bottom 16A of the box body 16 described later is fitted.

An auxiliary beam 1 extending forward from a front right overhanging beam 10 is provided on the main body frame 3.
3 is provided near the center frame 8, so that the side frame 9, the overhanging beam 10, the auxiliary beam 13, the bottom cover 11, the upper cover 12, and the overhanging bottom of the box body 16, which will be described later, The cavity 14 is formed by 16A, and the cavity 14 is a dead space.

Reference numeral 15 denotes a storage box which is mounted on the upper cover 12 and is located on the front right side of the body frame 3 and stores therein articles (not shown) such as repair tools and greasing equipment. The box 15 is a box body 1 described later.
6, the door 20 and the like.

Reference numeral 16 denotes a plurality of bolts 1 on the upper cover 12.
The box main body is fixed via the first and second housings 7 and 17 (only two are shown) and constitutes the main body of the storage box 15. The protrusion bottom 16A protrudes so as to enter the storage box 15, and the storage volume of the storage box 15 is increased by the protrusion bottom 16A. The upper surface of the box body 16 is opened through an article entrance 16B, and a seal member 18 is provided around the article entrance 16B to seal the inside of the box body 16 from the outside when the door 20 is closed. ing. Further, the box body 1
6, a hook 21 of a lock mechanism 21 to be described later is provided.
A hook receiver 19 with which A is engaged is fixed.

Reference numeral 20 denotes an article entrance 16 of the box body 16.
The door 20 is opened and closed. The door 20 has its base end side rotatably mounted via a hinge 20A on the rear side of the upper surface of the box body 16 and extends downward so that the front end side covers the front side. ing.

Reference numeral 21 denotes a lock mechanism provided on the distal end side of the door 20. The lock mechanism 21 is engaged with a hook receiver 19 fixed to the box body 16 by manually rotating the hook 21A. , Take off, lock the door 20 in the closed state, and allow the door to be opened.

Reference numeral 22 denotes a gas spring provided between the box body 16 and the door 20. The gas spring 22
In addition to assisting the door opening with a light force when the door is opened,
The door 20 is supported in an open state.

In the hydraulic excavator thus configured,
A prime mover and a hydraulic pump (both not shown) driven by the prime mover are provided in a machine room 4 of the upper revolving unit 2, and hydraulic oil discharged from the hydraulic pump is supplied to the traveling hydraulic motor of the lower traveling unit 1 and By supplying and discharging to and from each cylinder and the like (both not shown) of the working device 7, these are actuated to drive the vehicle or perform excavation work for earth and sand.

When using the articles such as repair tools, greasing equipment and the like stored in the storage box 15 and, for example, greasing the working device 7 or the like, the lock mechanism 21 locks the door 20. And the door 20 is opened,
The greasing equipment is taken out of the box body 16 via the article entrance 16B to perform greasing.

[0013]

By the way, in the storage box 15 according to the prior art described above, the box body 16
A protruding bottom portion 16A is formed on the upper surface to increase the storage volume.

However, the overhanging bottom 1 of the box body 16
Since 6A is formed by press working (drawing) or the like, it cannot be protruded greatly, and there is a problem that the storage volume of the storage box 15 cannot be effectively expanded.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described problems of the related art, and has as its object to provide a construction machine capable of increasing the storage volume of a storage box without increasing the size of the storage box.

[0016]

Means for Solving the Problems In order to solve the above problems, the inventions of claim 1, a lower traveling body, lower traveling
Cab on the body frame is swingably mounted on the body, an upper revolving structure which have a machine room, the main body frame of the upper rotating body
It consists of a working device provided in the arm front the upper frame
On the body frame of the body , the operator's cab
A construction machine comprising providing a storage box at a position on the side opposite to the said storage box, the bottom side of the opening
And the box body side becomes article doorway, the article entrance of the box body to open, and composed of a door that closes, said main body frame storage compartment which upper side is open and positioned on the lower side of the storage box forming a, it is characterized by forming an article storage portion and the box body as a single article storage space.

Further, the invention according to claim 2 is characterized in that the main body frame is provided.
The arm, Ri rising in the box body of the storage box is located on the opening side of the article storage portion, the article storage unit
A structure that forms a waterproof wall that prevents rainwater from entering the inside
And Further, according to the invention of claim 3, the object
The product storage section is provided with a side frame forming the main body frame.
Beam, overhang beam, auxiliary beam, bottom cover and top cover
It consists of a space surrounded by

[0018]

According to the structure of the first aspect of the present invention, on the undercarriage,
The body frame of the upper revolving unit that can be turned
Storage box on the opposite side of the operator's cab across the industrial equipment
Can be placed. And the box body of the storage box
Inside and Ri by the and the article storage portion which is formed in the body frame, this
These can be formed as a single article storage space ,
The article storage without increasing the size of the box body
The space can greatly expand the entire storage volume.

Further, according to the structure of the second aspect of the present invention, the main body
The waterproof wall formed on the frame is located on the opening side of the article storage
And standing in the box body of the storage box
Runode, Ru can prevent the rain water from entering the gap or al product article housing space of the main body frame and the box body. further,
According to the invention of claim 3, the side frame is provided on the main body frame.
Beam, overhang beam, auxiliary beam, bottom cover and top cover
The space enclosed by the space as an article storage unit
be able to.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In the drawing, reference numeral 31 denotes a main body frame according to the present embodiment. The main body frame 31 has a pair of center frames 3 extending centrally of the main body frame 31 forward and rearward.
2 and 32, and a pair of side frames 3 extending in the front and rear directions while being separated outward in the width direction of each center frame 32.
, 33, and a plurality of overhanging beams 34, 34,... Extending in the width direction and arranged in front and rear directions to connect the center frames 32 and the side frames 33.
And a bottom cover 3 that covers the entire surface from the lower surface to the front.
5 and an upper cover 36 that covers the upper surface on the front right side. The upper cover 36 is integrally formed with a waterproof wall 39 described later.

In the same manner as in the prior art, an auxiliary beam 37 extending forward from the front right overhanging beam 34 is provided on the main body frame 31 near the center frame 32. Then, a side frame 33, an overhang beam 34, an auxiliary beam 37, a bottom cover 35, and an upper cover 36 are provided on the front right side of the main body frame 31.
The difference lies in that the enclosed space forms an article storage section 38 for storing articles. Further, in the article storage section 38, these connection portions are held in a liquid-tight manner by the welded portions W.

Reference numeral 39 denotes a waterproof wall formed by bending the upper cover 36 upward.
As shown in FIG. 2, the base end side is integrally fixed to the upper cover 12 and rises upward, and the front end side extends into the box main body 42 to form an opening 40, which is formed in a square tube shape as a whole. ing. The waterproof wall 39 prevents rainwater that enters from a gap between the box body 42 and the upper cover 36 from entering the article storage section 38.

Reference numeral 41 denotes a storage box which is mounted on the upper cover 36 at the front right side of the main body frame 31 and stores therein articles (not shown) such as repair tools and greasing equipment. The storage box 41 includes a box body 4 described later.
2, the door 46 and the like.

Reference numeral 42 denotes a plurality of bolts 4 on the upper cover 36.
The box body according to the present embodiment, which is fixed via three and 43 (only two are shown) and constitutes the body of the storage box 41, has a waterproof wall 39 inside the box body 42 on the bottom side of the box body 42. Is formed in a rectangular hole 42A that allows the entry of a hole. The upper surface side of the box body 42 is opened through an article entrance 42B, and the article entrance 42B
A seal member 44 that seals the inside of the box main body 42 from the outside when the door 46 is closed is provided. Further, on a front side of the box body 42, a hook receiver 4 with which a hook 47A of a lock mechanism 47 described later is engaged.
5 is fixed.

Reference numeral 46 denotes an article doorway 42 of the box body 42.
B is a door for opening and closing B, and the door 46 is rotatably attached to the rear end of the box body 42 via a hinge 46A at the base end side, similarly to the door 20 according to the prior art.
The tip side extends downward so as to cover the front side.

Reference numeral 47 denotes a lock mechanism provided on the front end side of the door 46. The lock mechanism 47 has a hook 47A which engages with and disengages from the hook receiver 45, similarly to the lock mechanism 21 according to the prior art. I have.

Reference numeral 48 denotes a box body 42 and a door 4
6 shows a gas spring provided between the first and second gas springs.

Thus, a single article storage space 49 is formed inside the article storage section 38 of the main body frame 31 and the box main body 42 of the storage box 41.

The construction machine according to the present embodiment has the above-described configuration, and its basic operation is not particularly different from that of the prior art.

However, in this embodiment, the main body frame 31
The article storage section 38 is formed by liquid-tightly closing the periphery and the bottom on the front right side of the article storage section.
Thus, the single article storage space 49 is formed, so that the article storage section 38 of the main body frame 31 can be used as a part of the storage space of the storage box 41.

Thus, according to the present embodiment, the article storage section 38 of the main body frame 31 can be used as a part of the storage space of the storage box 41, so that the storage box 41 can be stored without being enlarged. The storage capacity of the box 41 can be greatly increased, and usability can be greatly improved.

Further, since the waterproof wall 39 is formed so as to stand up on the upper cover 36 of the main body frame 31, even if rainwater enters from the gap between the box body 42 and the upper cover 36, the waterproof wall 39 is formed. Accordingly, it is possible to prevent the rainwater from entering the article storage section 38, prevent the stored articles from being deteriorated or damaged by the rainwater, and improve the reliability.

In the above embodiment, the case where the upper cover 36 and the waterproof wall 39 are integrally formed is exemplified. However, the upper cover 36 and the waterproof wall 39 are provided separately, and the liquid is fixed by a fixing means such as welding. You may make it adhere firmly.

When the storage box 41 is installed in a place where there is no risk of intrusion of rainwater or the like, the waterproof wall 39 may be omitted.

Furthermore, in the above embodiment, applied is described by taking a hydraulic shovel as an example of a construction machine, the present invention is not limited to this, also a construction machine having a storage box on the body frame, such as a hydraulic crane can do.

[0037]

As described in detail above, according to the first aspect of the present invention, the upper revolving body mounted rotatably on the lower traveling body.
On the body frame, on the opposite side of the cab with the working device
Place the storage box at a certain position, the storage box ,
And the box body bottom side is open, the article entrance of the box body to open, thereby constituting a door that closes, the main body frame to form an article storage portion which upper surface is open is located on the lower side of the storage box The article storage section and the inside of the box body are formed as a single article storage space.
Accordingly, since it is possible to use the storage compartment of the main body frame as part of the storage space of the storage box, before
The serial box body without increasing the size of the yield paid box
According to enlarge the storage capacity of the entire article storage space, usability can be improved.

According to the second aspect of the present invention, a waterproof wall rising in the box body of the storage box is provided on the main body frame to prevent rainwater from entering the article storage space by opening the opening of the article storage section. Because it is formed, even if rainwater enters from the gap between the main body frame and the box main body, it is possible to prevent this rainwater from entering the article storage space,
It is possible to prevent the stored articles from being deteriorated or damaged by rainwater , and to improve reliability. Further, according to the invention of claim 3,
For example, side frames and overhang
Enclosed by the beam, auxiliary beam, bottom cover and top cover
Depending on the space, the body frame is positioned below the storage box
To form an article storage section with an open top side.
Wear.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an enlarged main body frame according to an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional view showing a main part of a main body frame and a storage box in FIG.

FIG. 3 is an external perspective view showing a conventional hydraulic excavator.

FIG. 4 is an external perspective view showing the main body frame in FIG. 3 in an enlarged manner.

FIG. 5 is an enlarged vertical sectional view showing a main part of a main body frame and a storage box in FIG. 4;

[Explanation of symbols]

 2 Upper revolving superstructure (working machine main body) 4 Machine room 5 Operator's cab 7 Working device 31 Main frame 36 Upper cover 38 Article storage section 39 Waterproof wall 40 Opening 41 Storage box 42 Box body 42A Square hole 42B Article entrance 46 Door 49 Article Storage space

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60R 11/06 E02F 9/16 B60R ^7/ 00-7/14

Claims (3)

(57) [Claims] An undercarriage and a swingable body on the undercarriage
Cab on the body frame is mounted on the ability to have a machine room
An upper swing structure consists of a working device provided on the main body frame front of the upper rotating body, on the body frame of the upper rotating body and the cab across the working device and the opposite
In a construction machine in a position formed by providing a storage box, before Symbol storage box, the bottom side is open top side article and out
Forming a box body with a mouth, the article entrance of the box body to open, and composed of a door that closes the article storage portion upper surface is open is located on the lower side of the storage box before SL body frame A construction machine wherein the article storage section and the inside of the box body are formed as a single article storage space. The method according to claim 2, wherein the body frame, Ri rising to the article storage unit is positioned on the opening side of the box body of the storage box, preventing the infiltration of rainwater into the article storage portion
The construction machine according to claim 1, wherein a waterproof wall is formed. 3. The article storage section includes a body frame.
Forming side frame, overhang beam, auxiliary beam,
Structured by the space surrounded by the bottom and top covers
The construction machine according to claim 1, wherein the construction machine comprises: