JPH0564244U - Engine hood - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the specifications differ from the standard, even if it is necessary to change the depth, the molds and jigs are unified to have commonality so that productivity can be improved. [Structure] The engine hood is a standard hood 1 with a lid 1a.
And a frame-shaped bulk hood 2 having a size that can be stacked with the standard hood 1. The standard hood 1 is around the lower surface, and the bulk hood 2 is around the upper and lower surfaces. The flanges 3, 4 and 4 are provided, and the bulk hood 2 can be overlapped with the lower part of the standard hood 1 if necessary so that the flanges 3 and 4 can be joined. [Effect] Even if the specifications change, it is possible to quickly respond because the work of replacing the mold is unnecessary.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine hood mounted on a rear portion of a construction machine, mainly a power shovel, and more particularly to an engine hood that can be easily manufactured.

[0002]

[Prior Art]

 Conventionally, an engine hood 12 of a construction machine such as a power shovel 11 is provided on an upper portion of a hood body 13 at a position as shown in a plan view of FIG. 4 (a) and a side view of FIG. 4 (b). However, because the specifications of standard vehicles and low-noise vehicles are different, they were producing their own hoods. That is, each time the specifications of the conventional hood change, as shown in Fig. 5 and Fig. 6, the standard car has 12 different heights, and the noise reduction car has 12 'different heights. Is manufactured by bending and molding it with a die.

[0003]

[Problems to be solved by the device]

 However, since the hoods with different specifications (height and depth) were specially manufactured, the productivity was poor, and the number of man-hours for bending and welding the sheet metal was large, and the cost was high. Equipment such as hood bending molds and welding jigs are also required, and the number of setup changes increases, resulting in higher depreciation costs and higher product costs. Moreover, each hood was required to accommodate changes in the application at the top of the engine.

In view of this, the present invention has a specification that is different from the standard, and even if it is necessary to change the depth, the molds and jigs are unified by providing commonality, and the engine flux is improved. -It was made with the purpose of providing the code and eliminating the drawbacks of the prior art.

[0005]

[Means for Solving the Problems]

 As a means for solving the above problems of the prior art, the present invention comprises an engine hood including a standard hood having a lid and a frame-shaped bulk hood having a size capable of being stacked with the standard hood. The standard hood is provided with flanges around the lower surface thereof, and the bulk hood is provided with upper and lower circumferential surfaces thereof, respectively, and the bulk hood is overlapped with the lower portion of the standard hood to form a flange portion. The feature is that they can be joined by.

[0006]

[Action]

 With the above construction, the engine hood can be used as a standard hood alone or as a standard hood + bulk hood having a height as required.

[0007]

【Example】

 FIG. 1 is a perspective view showing an embodiment of a standard hood and a bulk hood of an engine hood according to the present invention, and FIG. 2 is an embodiment in which the standard hood and the bulk hood of FIG. 1 are joined. It is a perspective view which shows an example.

The present invention will be described below with reference to an embodiment shown in FIGS. In the present invention, the engine hood comprises a standard hood 1 having a lid 1a and a frame-shaped bulk hood 2 having a size capable of being stacked with the standard hood 1, and the standard hood 1 Flanges 3, 4, and 4 are provided around the lower surface of the standard hood 1 and around the upper and lower surfaces of the bulk hood 2, respectively, and the bulk hood 2 is superposed on the lower portion of the standard hood 1 as necessary. The flange 3 can be joined together.

Generally, since the engine hood is provided on the revolving structure of the power shovel, the plane area is limited and the height must be adjusted, so that there is some margin in the height direction. Therefore, the standard hood 1 is a rectangular frame 1b having a predetermined height, the corners of which are R, the upper portion is a lid 1a, and the connecting portion with the frame 1b is also R. There is. A flange 3 is integrally provided around the lower surface of the frame 1b. The bulk hood 2 has a size such that the frame 2a overlaps the frame 1b of the standard hood 1 and has an appropriate height, and the upper and lower surfaces thereof are the same as the flange 3 of the standard hood 1. Flanges 4 and 4 of the same size are provided. Further, a seal rubber 5 for sandwiching the flanges 3 and 4 is provided on each of the flanges 3, 4 and 4 at the time of mounting, so that the both feet 1 and 2 are integrated. ing. In FIG. 1, 6 is an intake port and 7 is an exhaust port.

Next, the operation will be described. When the specification is a standard vehicle, only the standard hood 1 is used, the flange 3 surface is overlapped with the flange surface of the hood body (not shown), and the seal rubber 5 as shown in FIG. 3 is attached. Be combined. Next, if the specification is for an ultra-low noise vehicle, etc., heat will be trapped inside due to the fact that a sound absorbing material or heat insulating material is attached to the inner wall surface. Must be used, and therefore a higher hood than standard hood 1 is desired. For this reason, the bulk hood 2 is required in addition to the standard hood 1, and the lower surface of the flange 3 of the standard hood 1 and the upper surface of the flange 4 of the bulk hood 2 are joined and integrated. , The flange 3 and the flange 4 (upper side) are sandwiched (see FIG. 3), the seal rubber 5 is attached, and both the flanges 3 and 4 are combined to obtain an integrated engine hood for an ultra-low noise vehicle. be able to. If a taller engine hood is required, the bulk hood 2 can be stacked in two steps, and the standard hood 1 can be stacked on the bulk hood 2 and joined in the same manner.

[0011]

[Effect of the device]

 As described above, according to the present invention, the engine hood is composed of a standard hood having a lid and a frame-shaped bulk hood having a size capable of being stacked with the standard hood. Flange is provided around the lower surface of the and the upper and lower surfaces of the bulk hood, respectively, and as required above. Since the bulk hood is superposed on the lower part of the standard hood and can be joined at the flange, the productivity is high and the cost is low because the molds and jigs can be unified even if the specifications are different and the height is changed. Become. In other words, even if the specifications change, there is no need to replace the mold, so we can respond quickly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a standard hood and a bulk hood of an engine hood according to the present invention.

FIG. 2 is an explanatory perspective view showing a part of the engine hood of FIG. 1 integrated with the engine hood.

3 is an explanatory diagram showing a cross section taken along the line AA of FIG. 2. FIG.

FIG. 4 shows an engine hood of a conventional power shovel, in which (a) is a plan view and (b) is a side view.

FIG. 5 is an explanatory perspective view showing a standard engine hood of a conventional power shovel.

[Fig. 6] Special specifications of conventional power shovels (low noise, etc.)
FIG. 3 is an explanatory perspective view showing the engine hood of FIG.

[Explanation of symbols]

 1 Standard Hood 1a Lid 2 Bulk Hood 3,4 Flange

Claims (1)

[Scope of utility model registration request] 1. An engine hood comprises a standard hood having a lid and a frame-shaped bulk hood having a size capable of being stacked with the standard hood. An engine characterized in that a flange is provided around the upper and lower surfaces of the bulk hood, and the bulk hood can be overlapped with the lower part of the standard hood and joined at the flange portion if necessary. Hood.