JPH0627960U - Counterweight tool box structure - Google Patents

Abstract

(57) [Abstract] [Purpose] When a large hydraulic excavator equipped with a conventional counterweight is inspecting and repairing equipment around the engine, a notch recess formed from the front surface to the upper surface of the counterweight. Use the space of as a space for maintenance. However, when the space is not used, the cutout recess cannot be used as a mere space. This problem is solved. [Structure] In the counterweight tool box structure of the present invention, a partition plate is detachably provided on the front surface of the cutout recess, and the tool member is housed by the inner wall surface of the cutout recess and the partition plate and the cover plate. Formed in a tool box. Further, the cover of the notch recess is formed on a cover extending from the front surface to the upper surface of the notch recess, and the cover is detachably attached to the notch recess to set the space of the notch recess in the tool box.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to the structure of a counterweight mounted on the rear end of the vehicle body of construction machines such as large hydraulic excavators and work vehicles.

[0002]

[Prior art]

 FIG. 5 is a perspective view of a main part of a large hydraulic excavator. In the figure, 1 is an upper revolving structure which is a body of a large hydraulic shovel, 2 is a counterweight attached to the rear end of the upper revolving structure 1, 3 is a cover plate hinged to the upper surface of the counterweight 2, and 4 is a cover plate. A hinge member, 5 is an engine bonnet, 6 is a side guard plate, and 7 is a lower traveling body. FIG. 6 is a perspective view showing the counterweight 2 in FIG. In the figure, 8 is a notched recess formed in the upper center of the front part of the counterweight 2. FIG. 7 is a plan view of relevant parts showing a state in which the engine 9 is arranged on the front side of the counterweight 2.

Next, the structure of the conventional counterweight 2 will be described with reference to FIGS. A notched concave portion 8 is formed from the front surface portion to the upper surface portion of the counterweight (2), and a lid body 3 which is rotatable rearward is hingedly attached to the upper surface of the notched concave portion 8 to form an upper swing body. 1 When the equipment such as the engine 9 inside is inspected and repaired, the lid plate 3 is opened so that the operator can use the space of the above-mentioned cutout concave portion 8.

[0004]

[Problems to be solved by the device]

 When a large hydraulic excavator equipped with the counterweight 2 of the prior art performs inspection or repair of the engine 9 or equipment around the engine 9, the engine bonnet 5 shown in FIG. The plate 3 is opened in the direction of arrow B, and the cutout recess 8 (shown in FIGS. 6 and 7) is used as a maintenance space. If the robot does not inspect or repair the peripheral equipment of the engine, it could not be used by simply making the above-mentioned recessed recess into a space. An object of the present invention is to solve the above problems and to provide a structure of a counter weir that can effectively utilize a notch recess.

[0005]

[Means for Solving the Problems]

 According to the tool box structure of the counterweight of the present invention, a partition plate is detachably provided on the front surface of the notch recess, and the inner wall surface of the notch recess, and the tool member is housed by the partition plate and the cover plate. Formed. Further, the lid of the notched recess is formed on a cover extending from the front surface to the upper surface of the notched recess, and the cover is detachably attached to the notched recess to set the space of the notched recess in the tool box.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view of an essential part near a counterweight 2a having a tool box structure according to claim 1 of the present invention. In the figure, 2a is a counterweight attached to the rear end of the upper revolving structure 1a, 3a is a cover plate hinged to the upper surface of the counterweight 2a, 4a is a hinge member, 8a is a notched concave portion of the counterweight 2a, 10a. Is a partition plate, 11 is a partition plate holding fitting which is formed by two block plates so that the partition plate 10 can be inserted and held, and which is fixed to the inner wall surface of the front portion of the notch recess 8a, and 12 is the cover plate 8a. A bolt for tightening when closed, 13 is a center frame of the upper swing body 1a, an imaginary line 9a is an engine, and 14 is an engine compartment. FIG. 2 is a perspective view of the counterweight 2a with the cover plate 3a open, as seen from the front side. In the figure, reference numeral 15 is a handle hole formed in the partition plate 10.

Next, the tool box structure of the counterweight 2a according to claim 1 of the present invention and its operation will be described. In the counterweight 2a, a partition plate 10 is detachably provided on the front surface of the cutout recess 8a, and the inner wall surface of the cutout recess 8a and the partition plate 10 and the cover plate 3a are formed into a tool box for storing a tool member. did. Therefore, when the partition plate 10 is inserted into the partition plate holding metal fitting 11 fixed to the front inner wall surface of the cutout recess 8a, the cutout recess 8a has a box shape surrounded on all sides. Since various tool members can be safely stored inside the box, it is convenient and space can be effectively used. If a heavy tool member or a heavy block member (a suitable block member is selected) is placed in the above tool box (a tool box in which the notch recess 8a has a box shape), they serve as the counterweight for increasing the quantity. , The stability of construction machinery can be improved. When the space of the cutout recess 8a is used as a maintenance space, the tool member placed in the cutout recess 8a may be taken out and the partition plate 10 may be removed.

Next, FIG. 3 is a cross-sectional view of an essential part near a counterweight 2b having a tool box structure according to claim 2 of the present invention. In the drawing, the same reference numerals are given to those having the same constituent elements as the tool box structure of the counterweight 2a in claim 1. 2b is a counterweight attached to the rear end of the upper revolving structure 1b, 8b is a notch recess of the counterweight 2b, 16 is a cover, 17 is a handle fixed to the cover 16, 11 'is a lower edge of the cover 16. A cover holding metal fitting formed by two block plates so that it can be inserted and held and fixed to the inner wall surface of the front portion of the notch recess 8b, and 12'removably fixes the cover 16 to the counterweight 2b. It is a bolt. FIG. 4 is a perspective view of a main part showing an assembled structure of the counterweight 2b.

Next, a tool box structure of the counterweight 2b according to claim 2 of the present invention will be described with reference to FIGS. 3 and 4. In the counterweight 2b, the lid of the notch recess 2b is formed on the cover (16) extending from the front surface to the upper surface of the notch recess 8b, and the cover 16 is detachably attached to the notch recess 8b. The space of the notch recess 8b was set in the tool box. Therefore, when the tool member is housed in the notch recess 8b, the bolt 12 'that fastens the cover 16 is loosened and the cover 16 is removed. Then, the tool member is put into the space of the cutout recess 8b. Then, the lower edge portion of the cover 16 is inserted into the cover holding metal fitting 11 ', and the cover 16 is fixed to the counterweight 2b by the bolt 12'. As a result, a tool box is formed by the cover 16 and the inner wall surface of the cutout recess 8b, and the tool member inside the tool box does not fall into the engine compartment 14. Therefore, the function and function of the counterweight 2b of the second aspect in the toolbox structure are the same as those of the counterweight 2a of the first aspect.

[0010]

[Effect of device]

 When a large hydraulic excavator equipped with a conventional counterweight inspects and repairs the equipment around the engine, the space of the notch recess formed from the front part of the counterweight to the upper part is maintained. Used for space. However, when the space was not used, the cutout recess could not be used as a mere space. However, in the counterweight tool box structure of the present invention, a partition plate is detachably provided on the front surface of the notched recess, and the inner wall surface of the notched recess and the partition plate and the cover plate are used to house the tool member. Formed. In addition, the cover of the notch recess is formed on the cover extending from the front surface to the upper surface of the notch recess, and the cover is detachably attached to the notch recess to set the space of the notch recess in the tool box. Accordingly, when the partition plate or the cover is attached to the cutout recess, the cutout recess can be set to the partition plate or the cover and the tool box surrounded by the inner wall surface of the cutout recess on all sides. When the tool members are stored in this tool box, it is safe because the tool members do not fall out toward the engine compartment. If heavy block members or tool members are put in the tool box, they act as increasing counterweights. Therefore, in the counterweight having the tool box structure of the present invention, the space of the notched recess, which is the maintenance space, can be effectively utilized, which is convenient, and the safety of the construction machine can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part near a counterweight having a tool box structure according to claim 1 of the present invention.

FIG. 2 is a perspective view of the counterweight in FIG. 1 viewed from the front side.

FIG. 3 is a cross-sectional view of essential parts near a counterweight having a tool box structure according to claim 2 of the present invention.

FIG. 4 is a perspective view of a main part showing an assembled configuration of the counterweight shown in FIG.

FIG. 5 is a perspective view of a main part of a large hydraulic excavator.

FIG. 6 is a perspective view showing a counterweight of the related art in FIG.

FIG. 7 is a plan view of relevant parts showing a state near a counterweight.

[Explanation of symbols]

 1, 1a, 1b Upper revolving structure 2, 2a, 2b Counterweight 3 Lid plate 4, 4a Hinge member 8, 8a, 8b Cutout recess 9, 9a Engine 10 Partition plate 11 Partition plate holding metal fitting 11 'Cover holding metal fitting 14 Engine Chamber 16 cover

Claims (2)

[Scope of utility model registration request] 1. A notch concave portion is formed from a front surface portion to an upper surface portion of a counterweight attached to a rear end portion of a vehicle body of a construction machine or a working vehicle, and an openable lid is provided on an upper surface of the notch concave portion. In a counterweight in which the space of the cutout recess is set as a maintenance space to be used at the time of inspection and repair, etc., a partition plate is detachably provided on the front surface of the cutout recess, and an inner wall surface of the cutout recess is provided. A tool box structure of a counterweight, characterized in that the partition wall plate and the cover plate are formed into a tool box for housing a tool member. 2. A notch recess is formed from a front surface of a counterweight mounted on a rear end of a vehicle body of a construction machine or a working vehicle to an upper surface of the counterweight, and an openable and closable lid is provided on an upper surface of the notch recess. In counter weights where the space of the notch recess is set as a maintenance space used for inspection and repair, the cover of the notch recess is formed on the cover extending from the front surface to the upper surface of the notch recess, and the cover is formed. A counterweight tool box structure characterized in that the space of the notch recess is set in the tool box by being detachably attached to the notch recess.