JP2508913Y2 - General-purpose engine cover - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an engine cover of a general-purpose engine used as a drive source for a mower, a generator and the like.

[0002]

BACKGROUND OF THE INVENTION to Figure 5 7 Utility Model 62-1764
5 shows a conventional general-purpose engine cover disclosed in Japanese Patent Publication No. 65, FIG. 5 is a side view of this general-purpose engine cover, FIG. 6 is a sectional view taken along the joining line of FIG. 5, and FIG. 7 is a sectional view taken along the line III-III of FIG. is there.

In these drawings, reference numeral 1 denotes an engine cover body, which is composed of a pair of divided covers 2 and 3 which are vertically divided into two . 4 engine stand 5 in butterfly plug guard, the base end portion of the engine stand 4 and the plug guard 5, their respective cross-section substantially T-shaped fitting pieces 4a, 5a are provided .

Further, A is an engine body, and a spark plug is attached to the upper end of the engine body A, and a plug cap B is covered. C is a recoil starter disposed at the rear of the engine body A, and D is an operation handle of the recoil starter C. In addition, E is an air cleaner, F is a muffler, and K is a clutch, which are mounted substantially opposite one side surface of the engine body A. G is a fuel tank arranged at the lower end of the engine body A, H is this fuel tank G
It is the opening and closing lid of.

The joining (dividing) surface of each of the divided covers 2 and 3 is set at a position passing through the centers of the plug cap B and the opening / closing lid H of the fuel tank G, as shown in FIG. Further, on one side surface of each of the divided covers 2 and 3, there are formed openings 2a and 3a through which a part of the engine body A projects and an opening / closing lid H which is formed when the divided covers 2 and 3 are joined. opening 2b, 3b has been kicked set, respectively it to be. Similarly, openings 2c and 3c for projecting the tip portion of the plug B are formed on the upper surfaces of the respective divided covers 2 and 3.
But their respective have been kicked set. Further, the central portion of the front surface of one of the split covers 3 is bulged outward in a box shape to form a casing 3d of the recoil starter C. A rope outlet (not shown) for operating the recoil starter body is provided in the casing 3d.

Further, 2e and 3e are as shown in FIG.
A positioning mechanism composed of concave and convex portions that engage with each other.
But the convex portion 3e pixel Re respectively opposed to being formed in the other.

Further , as shown in FIG. 5, reference numerals 2f and 3f are connecting mechanisms 2g and 3f, each of which is composed of a projection and a fitting groove which are fitted with each other.
g is a screwing mechanism composed of corresponding screw hole portions and insertion hole portions, and at appropriate places outside the joint surfaces of the divided covers 2 and 3, there are screw hole portions 2g on one side and insertion hole portions 3g on the other side. <br/> formed their respective opposed to. In addition, 6 is the tightening screw.

2h and 3h are fixing mechanisms for the engine stand 4 and the plug guard 5, as shown in FIG.
At the upper and lower central portions of the joint surfaces of the divided covers 2 and 3, with the divided covers 2 and 3 joined, the fitting piece 4a,
Fitting grooves 2h and 3h that fit into 5a are provided respectively. In addition, 2i and 3i are support members for the fuel tank G, which are provided so as to project inside the lower portions of the respective divided covers 2 and 3.

[0009] Conventional engine cover configured as described above, as shown in FIGS. 5 and 6, by the divided cover 2, the entire engine including an engine body A and the fuel tank G and the muffler F, etc. And the joint surfaces of the split covers 2 and 3 are butted against each other, and the positioning mechanisms 2e and 3e
And connecting mechanisms 2f and 3f and screwing mechanisms 2g and 3
and the fitted g, by tightening the screw 6 of the insertion hole 3g into the screw hole portion 2g, split covering 2 and 3 are combined integrally.

In this state, the plug cap B, part of the air cleaner E, and the opening / closing lid H are exposed outside the cover. Further, the operating handle D of the recoil starter C, and pull the rope from the rope outlet of beforehand Me Ke pacing 3d, rope end is secured.

[0011]

However, according to the general-purpose engine cover according to the above-mentioned conventional technique, the engine body A is sandwiched between the divided covers 2 and 3, and the positioning mechanisms 2e and 3e are attached to the joint surfaces of the divided covers. After positioning Te, screwing mechanism 2g, by screwing at 3g, since each of the divided covers 2,3 are configured to be assembled to the entire engine, only the mounting of the divided cover, is troublesome removal mow rather, the number of parts ing and cost up to increase. Also, each divided cover 2, 3
Separately from the assembly of the plug guard manufactured as a separate part
Because and must be attached to the engine stand in position, not labor Cal only, the mold cost for producing these plugs guard and engine stand as a separate part is a problem, such as the expensive Nde umbrella.

Conventionally, a pair of vertically divided two parts is used.
Form a guide rail on the opposite edge on the bottom side of the cover, and
The above-mentioned split cover is placed in the grooves formed on both side edges of the base of the band handle.
Fit the opposite edges on the top side of the bar and
Fit the leg member to the guide rail on the side of
It is known that there is one (Japanese Patent Laid-Open No. 62-21862).
(See Japanese Patent Publication No. 4).

However, according to the above configuration, each of the above divisions is performed.
If an external force is applied to the covers in a direction away from each other,
Since the handle and leg members come off,
Fit the end covers into the openings at both ends of the
It is necessary to stop it in the same way as in the case of the conventional example described above.
Not only is it time-consuming to install and remove
The number of points also increases and the cost increases. In addition, each divided cover
Separately from the assembly of the plug, it is manufactured as a separate part
Since the foot and leg members must be attached separately,
Not only is it time-consuming, but these plug guards and
Mold cost for manufacturing the engine stand as a separate part
It is expensive and expensive.

[0014] it to this invention is to solve the above problems
One that is, the attachment of the split cover to the engine, with the easy and quickly accomplished removal, and an object thereof is to reduce the number of parts to provide an inexpensive general-purpose engine cover.

[0015]

To achieve the above object, according to an aspect of this invention is, by the divided cover that is divided into two vertical
It is sandwiched so as to cover the entire engine and joined integrally
In the general-purpose engine cover,
The top and bottom locks are made of an elastic material.
Repression to disengage friendly tip engaging portion of Ruhobo U-shaped locking member
Function to lock each split cover integrally and fix
The locking member on the top side also serves as a plug guard ,
The locking member of the bottom portion side you characterized by being configured to engine stand-cum Bei be so that.

[0016]

According to the above construction , the mounting and dismounting of the respective divided covers which are sandwiched and integrally joined so as to cover the entire engine can be accomplished by one-touch by attaching and detaching the respective locking members. and the locking member of each divided cover
Integral fixing and function as a plug guard and engine stand, so it is essential as a separate part
Fixing screws which was at, that such an unnecessary plug guard and engine stand dedicated parts, to reduce the number of parts
It is Ru can.

[0017]

EXAMPLES The following drawings thus <br/> explaining an embodiment of this invention. Figure 1 is a side view of this invention, Figure 2 is the joining line sectional view of FIG. 1, FIG. 3 is a sectional view taken along line III-III in FIG. 1, Figures 5 illustrates a conventional example 7 the same Moshiku the phase and the detailed description thereof will be omitted with denoted by the same sign-in hook part <br/> minute.

[0018] In FIG, 11, 12 is a locking member formed in a curved shape by any elastic material, locking member 11 in order to integrally join the split cover 2,
It is attached to the tops of the split covers 2 and 3 in a locked state, and also has a function of serving as a plug guard after the attachment. Further, since the locking member 12 integrally joins the divided covers 2 and 3, the divided covers 2 and 3 are joined together.
It is attached to the bottom portion of No. 3 in a locked state, and at the same time, it also has a function of functioning as an engine stand.

That is , the locking members 11 and 12 are shown in FIG.
The shape is as shown in, and in the normal state before wearing,
As shown in the figure, the left side portion is in the state of the one-dot chain line, and at the time of mounting, it is fitted into a predetermined locking hole to be described later, so by pressing against the elasticity, the portion shown by the one-dot chain line portion Is formed in a curved shape so as to be in a state indicated by a solid line. The locking members 11 and 12 may be formed in a curved shape from an elastic material such as a steel plate, a resin plate, or a wire, and may have a common shape instead of separate shapes. In this case, The manufacturing cost of the locking member can be kept low.

Next, the operation of the above construction will be described. The divided covers 2 and 3 sandwich the entire engine so that the joint surfaces of the divided covers 2 and 3 are aligned with each other and the positioning mechanisms 2e and 3e perform positioning. To do. Then, the distal locking portion of the locking member 11, the upper and the locking portion provided at the bottom of each split covering 2, for example locking holes 13a, 13b and 14a, to 14b, its <br / writing because their respective fitted against the elasticity of>. As a result, the retaining members 11 and 12 return to the state shown by the solid line from the state of the one-dot chain line shown in FIG. 4 due to the elastic force possessed, and the distal end retaining portion has the retaining holes 13a, 13b and 14a ,.
The divided covers 2 and 3 are integrally and firmly joined by being elastically locked and supported by the inner portion of the peripheral portion of 14b. Therefore, the locking members 11 and 12 do not have the possibility of separating the split covers 2 and 3 even when the engine is rotated at high speed.

When it is desired to remove the split covers 2 and 3 from the engine main body A when inspecting or replacing the spark plug, the engaging members 11 and 12 are reversed in the reverse order of the above.
The tip end locking part of the locking hole 13a, 13b against the elasticity thereof.
By detaching the split covers 2 and 3 from 14a and 14b, the split covers 2 and 3 can be easily and quickly removed from the entire engine.

[0022] As apparent from the above examples, the attachment of the divided cover 2,3 for the entire engine, removal, easily and quickly achieved by the plug guard or engine stand combined locking members 11 and 12, the plug guard and from the engine stand dedicated of the locking member is not required, the number of components is reduced, Ru can reduce the cost down.

[0023]

As has been described above devised], according to the invention can be achieved by one-touch mounting of each divided cover to the engine, be removed by only detaching the locking member,
And, traditional essential in a fixed screw, plug guard your
And parts for engine stand etc. are unnecessary, so
Since the number of parts can be reduced and the configuration of a conventionally known engine cover is only slightly improved, there is an effect that a large cost reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the joining line in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an enlarged side view of a locking member.

FIG. 5 is a side view of a conventional general-purpose engine cover.

6 is a cross-sectional view taken along the joining line in FIG.

FIG. 7 is a sectional view taken along line II1-III of FIG.

[Explanation of symbols]

 1 Engine cover main body 2,3 Divided cover 11,12 Locking member 13a, 13b Locking hole

Claims (1)

(57) [Scope of utility model registration request] 1. A sandwich vertically so as to cover the entire e <br/> engine Ri by the bisected each split covering was a general-purpose engine cover which is integrally joined, above the split cover
Made of elastic material for the locking parts formed on the top and bottom
Integrally fixed to each split covering the distal retaining portion of the substantially C-shaped locking member engages with the repression to disengageably <br/>, said top
With part side of the locking member to combine the plug guard, the upper
As the Kisoko portion of the locking member to cum Bei engine stand
A general-purpose engine cover characterized by being configured as.