JPS6233654Y2 - - Google Patents

Description

[Detailed explanation of the idea] Conventionally, the bonnet covering the top of the engine had a large number of mounting stays erected from the engine side and were attached to these with a large number of screws, so the nuts protruding from the top of the bonnet got in the way. Not only that, but the structure is complicated, which increases the cost, and the operation of attaching and detaching the bonnet is extremely troublesome.

In this invention, the mounting means such as bolts do not protrude above the bonnet and become an obstruction, the structure of the bonnet mounting device is simple and inexpensive, and the plug inspection window can be used during engine maintenance and inspection. The purpose of the present invention is to provide a bonnet mounting device for a mobile agricultural machine that allows the bonnet to be attached and detached extremely easily and quickly by simply removing the tightening bolts. a receiving member is set upright from the engine side, a latch is attached to the front part of the bonnet, and a bracket facing the receiving member is fixed to the lower surface of the bonnet near the plug inspection window;
The latch of the bonnet is engaged with the receiving hole, and the bracket is screwed onto the receiving member.

The embodiment shown in the drawings will be explained below.
1 is a transmission case with wheels 2, 2 mounted on its lower part, a machine base 3 fixed to its front part, and a handle 4 attached to its upper part.

Reference numeral 5 is an engine mounted on the machine base 3, and a pair of tower bolts 6, 6, 7, 7 are installed at the front and rear of the engine, respectively, and a front cover is attached to the front tower bolts 6, 6. 8 with a nut 9, and the rear tower bolts 7, 7 have a recess 11a in the center of the front corresponding to the plug 10, as shown in FIGS. 4 and 6, and the rear part slopes downward. A receiving plate 11 extending rearward substantially horizontally and serving as a heat shielding portion 11b is screwed with bolts 12, 12, and the receiving plate 11 and the tower bolts 7, 7 at the rear constitute a receiving member. .

Further, a horizontally elongated receiving hole 13 is bored in the center of the upper part of the front cover 8.

Reference numeral 14 denotes a bonnet which covers the upper surface of the engine 5 and has a plug inspection window 15.A latch 16 made of an elastic material is welded to the front part of the bonnet as shown in FIG. ，
The part corresponding to 7 has a U-shape when viewed from the front, has a concave part 17a at the center of the front part, and a convex part 17b at the center of the rear part.
A bracket 17 is welded to the bonnet 14, and when the bonnet 14 is installed, the latch 16 is inserted into the receiving hole 13, and then the bracket 17 is screwed onto the receiving plate 11 with bolts 18, 18.

Reference numeral 19 denotes a fuel tank, the front part of which is screwed onto the protrusion 17b of the bracket 17 with bolts 18a as shown in FIG. 7, and the rear both sides are welded to the inner surface of the bonnet 14 as shown in FIG. Since the support member 20 is screwed with bolts 21, when the bonnet 14 is attached or detached as described above, the fuel tank 19 is also attached or detached at the same time.

Reference numeral 22 represents a lid that is removably fitted into the plug inspection window 15, and reference numeral 23 represents a fuel filler lid 24, which is a bolt that screws the side portion of the front cover 8 to the muffler 25.

To remove the aforementioned bonnet 14, remove the lid 22, insert a wrench through the plug inspection window 15, pull out the bolts 18, 18, hold the bonnet 14 and pull it backwards, and the latch 16 will come out of the receiving hole 13. The bonnet 14 and the fuel tank 19 can be removed in an integrated state.

Also, when installing the bonnet 14, the latch 16
Although the gap between the front cover 8 and the bonnet 14 is narrower than the plate thickness of the front cover 8, the tip of the latch 16 is bent downward, so when this part is placed against the edge of the receiving hole 13 and pushed in, the latch 16 will fit into the receiving hole 13. The bracket 17 is then easily engaged and clamped by the bolts 18 and 1.
When the fuel tank 19 is screwed onto the receiving plate 11 by the screws 8, the fuel tank 19 is also attached at the same time.

At this time, the bolts 18, 18 do not protrude above the bonnet 14, so they do not become an obstacle and the appearance is good.

As mentioned above, the present invention involves drilling a receiving hole in the front cover of the engine, installing a receiving member upright from the engine side, attaching a latch to the front of the bonnet, and attaching the receiving hole to the underside of the bonnet near the plug inspection window. Since the bracket facing the member is fixed, the latch of the bonnet is engaged with the receiving hole, and the bracket is screwed onto the receiving member, the bonnet installation structure is extremely simple and the cost thereof can be reduced. Furthermore, when inspecting or servicing the engine, the bolts that screw the bracket onto the receiving member can be easily inserted and removed from above using the plug inspection window, and the bonnet can be removed very easily by simply engaging and disengaging the latch from the receiving hole. It can be quickly attached and detached.

Furthermore, the bolts for mounting the bonnet do not protrude from the top surface of the bonnet and become an obstacle, making it safe.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a side view of the small management machine, Fig. 2 is a plan view of the main parts, Fig. 3 is a side view of the same, Fig. 4 is a front view showing a partial cross section of the rear bonnet attachment part, and Fig. 5 is a plan view of the main part. FIG. 6 is a plan view of the rear mounting portion, FIG. 7 is a longitudinal side view of the same, and FIG. 8 is a cross-sectional view of the rear mounting portion of the fuel tank. 5...Engine, 6,7...Yagura Bolt, 8
...Front cover, 10...Plug, 13...
Receiving hole, 16... Latch, 15... Plug inspection window, 1
7...bracket, 18...volt.

Claims (1)

[Scope of utility model registration request] Drill a receiving hole in the front cover of the engine, set a receiving member upright from the engine side, attach a latch to the front of the bonnet, and fix a bracket facing the receiving member to the lower surface of the bonnet near the plug inspection window. A bonnet attachment device for a mobile agricultural machine, characterized in that the latch of the bonnet is engaged with the receiving hole, and the bracket is screwed onto the receiving member.