JPS6215100Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the side plate structure of a tractor bonnet, and is manufactured by using a mold that is also used when manufacturing side plates of tractor bonnets for small and medium-sized tractors, medium-sized and large-sized tractors, etc. This makes it possible to reduce costs.

Some agricultural tractor bonnets include a pair of left and right side plates and a top plate that covers the space between the side plates, and each side plate is provided with side moldings in the front-rear direction. Not only this type of tractor but also tractors of different models usually have different bonnets manufactured depending on the size of the model, even if the external design shape is substantially the same. Therefore, when producing many different types of products in small quantities, it is necessary to make press molds that are similar in shape to the number of models, which increases the manufacturing cost of these molds and makes it difficult to provide them at low prices. Ta.

In view of these conventional problems, the present invention aims to reduce manufacturing costs through mass production by using the press-formed intermediate product for different models when manufacturing the side panels of the bonnet. The main feature of this tractor bonnet is that it is equipped with a pair of left and right side plates and a top plate, and each side plate is fitted with side moldings in the front and rear direction. The pair of upper and lower dividing plates are connected by a perforated plate in the front and back direction attached to the inside thereof, and a side molding with ventilation holes is provided over the pair of upper and lower dividing plates so as to cover the perforated plate. The point is that the .

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In FIG. 1, 1 is a tractor body, which is composed of an engine 2, a transmission case 3, etc., and a front axle frame 4 is attached to both sides of the engine 2. . 5 is a front axle case, 6 is a front wheel, and 7 is a rear wheel. 8 is a battery, 9 is a radiator, and these are provided on the front axle frame 4. Reference numeral 10 denotes a bonnet that covers the engine 2, radiator 9, etc., and is composed of a front plate 11, a pair of left and right side plates 12, and a top plate (not shown).
An instrument panel 13, a handle 14, etc. are provided at the rear of the vehicle.

The side plate 12 is constructed as shown in FIGS. 2 and 3. That is, this side plate 12 is formed by press-forming a sheet metal material, and has two parts in the middle part in the vertical direction.
Protruding ridges 15 and 16 are formed in the front-rear direction, and the space between the ridges 15 and 16 forms a molding attachment portion 17. The company name,
A side molding 18 displaying a nickname etc. is attached. In addition, a large opening 1 is provided on the lower side of the side plate 12.
9 is formed, and a perforated plate 20 is attached from the inside corresponding to this opening 19.
2. The hot air inside can be discharged to the outside.

FIGS. 2 and 3 show, for example, a side plate 12 for a small size.
However, even when manufacturing something a little larger than this, this side plate 12 is used as an intermediate product, and the press mold can be used for multiple purposes. That is, as shown in FIGS. 4 and 5, the side plate 21 for large size is divided into two divided plates 22,
23 is divided into two upper and lower parts, and both dividing plates 22, 2
3 are vertically separated by a predetermined dimension and the perforated plate 24 in the front-rear direction is mounted on the inner side, and then the wide side molding 25 is mounted on the molding mounting portion 17. In this way, since the press mold can be used also, the manufacturing cost can be reduced accordingly. In addition, the dividing plate 22,
23 If blind plates are used for mutual connection, ventilation will be reduced, but by using perforated plates 24 and forming ventilation holes 26 in the side moldings 25, sufficient ventilation can be ensured. . Incidentally, the dividing plates 22, 23 and the multi-drawing plate 24 can be joined by spot welding or the like, and since the joined portion is covered with the side molding 25, the appearance is also good.

Reference numeral 27 denotes a rear wheel fender located on the inner side of each rear wheel 7, and a driver's seat 28 is provided between the rear wheel fenders 27. 29 is a hydraulic system for lifting and lowering the working machine. 30 is a sunshade device, as shown in FIGS. 6 to 8, the rear wheel fender 2
A pair of left and right columns 31 provided on the column 7, a pair of left and right side frames 32 provided in the front-rear direction at the upper end of this column 31, and a front frame 33 and a rear frame connecting the front and rear ends of each side frame 32. 34, and a heaven cloth 35 stretched across these. Each side frame 32 has a small groove-shaped gutter 36 formed in the front and back direction on the upper surface side, and two chevron-shaped horizontal bars 37 are provided between the side frames 32 in the front and rear. The front end of the top cloth 35 is connected to the lower side of the front frame 33, and a bag portion 38 is formed at the rear end of the top cloth 35, and a horizontal rod 39 is inserted into the bag portion 38.
The horizontal rod 39 has a handle 40 in the center thereof, and the handle 40 projects outward from the notch hole 41 of the bag portion 38. Both left and right ends of the horizontal rod 39 are removably engaged with respective engagement portions 43 of an engagement plate 42 fixed to the rear end of the side frame 32. Therefore, when tensioning the heaven cloth 35, after guiding the rear side downward through the rear of the rear frame 34, hold the handle 40 of the horizontal rod 39 and pull it forward, and then the heaven cloth 35 can be tensioned appropriately. Then, both ends of the horizontal rod 39 may be engaged with appropriate engagement portions 43 of the engagement plate 42. Therefore, the work of tensioning the top cloth 35 is much easier than when using a belt or the like. Note that the front frame 33 is provided with a ridge 44 for draining water.

According to the present invention, the side plate is divided into upper and lower parts at the molding attachment part, and these are connected by a perforated plate, so the side plate for small size can be changed to the side plate for large size, and the press mold can be used for both purposes. It is possible to reduce manufacturing costs. In addition, since the side molding is installed across both dividing plates, the perforated plate and the dividing joint portion can be covered with the side molding, and the appearance can be improved. Furthermore, while the dividing plates are connected by perforated plates, the side moldings have ventilation holes, so ventilation is good.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a perspective view of a small-sized side plate, Fig. 3 is a cross-sectional view of the same, Fig. 4 is a perspective view of a large-sized side plate, and Fig. 5 is a perspective view of a large-sized side plate. 6 is a perspective view of the sunshade, FIG. 7 is a sectional front view of the same, and FIG. 8 is a broken side view of the same. 10... Bonnet, 12, 21... Side plate, 1
7... Molding mounting portion, 18, 25... Side molding, 22, 23... Dividing plate, 24... Perforated plate.

Claims (1)

[Scope of utility model registration request] In a tractor bonnet that is equipped with a pair of left and right side plates and a top plate, and each side plate is equipped with a side molding in the front and back direction, each side plate has two upper and lower sides at the molding attachment part.
The pair of upper and lower divided plates are connected by a perforated plate in the front and back direction installed inside the divided plate, and a ventilation hole is provided across the pair of upper and lower divided plates so as to cover the perforated plate. A side plate structure of a tractor bonnet characterized by being equipped with side moldings.