TW585968B - Waterproof structure of motorcycle air filter - Google Patents

Abstract

This invention provides a waterproof structure of a motorcycle air filter to positively prevent the invasion of the water into an air filter while reducing inhalation resistance to thereby enhance engine performance. In a motorcycle, after purifying fresh air is introduced to the air filer 18, the fresh air is supplied to form a mixed flow. On a rear support (pipe frame) 8 provided above an air inlet 18a of the air filter 18 is mounted with a water gutter 47, such that the water gutter 47 covers above the air inlet 18a of the air filter 18. According to this invention, even if water flows to the front of the motorcycle along the rear support 8, this water drips into the water gutter 47 without being sucked into the air inlet 18a of the air filter 18 so as to ensure high waterproof characteristic of the air filter 18. In addition, it is not necessary to open the inlet 18a towards the side or downwards in order to prevent the invasion of the water to the air filter 18. The outer cover covers the air inlet 18a itself to reduce inhalation resistance low and to improve engine performance.

Description

585968 玖 玖, description of sprouting (the description of the invention should state: the technical field to which the invention belongs, the prior art, the content, the embodiments, and the drawings briefly) [Technical Field] The present invention relates to the waterproof structure of locomotive air cleaners. [Prior art]

For example, 'in a Sukhtar locomotive constructed with a rear suspension type engine', the air cleaner is installed on the rear suspension type engine, and the new air sucked in by the suction port of the air cleaner is opened. After the gas is purified by the cleaner element, the fresh gas is supplied to a carburetor or the like to form a mixed gas. A waterproof structure for preventing water from seeping through the air inlet of the air cleaner. It is constructed by installing a waterproof wall at the rear end of the frame to block the water splashing from the rear wheels, and adopts an air inlet that cleans the air. Opening to the side or the bottom, or covering the suction port itself with an outer cover. 1 [Invention to solve the problem]

The rear end of the frame is equipped with a conventional anti-shock structure, such as a waterproof wall for blocking water drops. 'There will be water along the front of the frame body, staying close to the air intake, and starting from the air. Mouth leaks into the air cleaner. The air intake σ of the outer purifier is opened horizontally or downward, or the invention has developed a waterproof structure for a locomotive air purifier to solve the above-mentioned problems. The air purifier can be inserted into the air purifier and the air intake resistance can be reduced. "Go ::: The body's conventional waterproof structure has the problem that the suction resistance is large and the engine performance cannot be fully exerted. The purpose is to achieve the lifting bow for the purpose of reliably preventing water | Solution to the problem] (2) (2) 585968 In order to achieve the above purpose, in the locomotive applying for the first invention of the patent scope, the fresh air is introduced into the air cleaner for purification, and then the fresh air is supplied to form a mixed gas, which is characterized by: The pipe frame member directly above the air inlet of the air cleaner = is equipped with a water guiding tube-shaped guide member, and the guide member covers the air cleaner above the air inlet of the air cleaner. The second invention, the scope of patent application In the old invention, the front end of the guide member is located at a position ahead of the air inlet of the air cleaner, and the rear end of the guide member is located at a position behind the air inlet of the air cleaner. The third invention in the scope of patent application is the first in the scope of patent application! The second or the first one is clear! ^ From the side, the aforementioned guide member is installed so as to be inclined toward the reverse side of the air inlet of the air cleaner and downward. The fourth invention claimed in the patent scope is the patent scope ^, the second or the third invention, in which the front and rear directions of the vehicle body of the side wall of the air cleaner are behind the air inlet and the guide member. A water stop is formed between the ends. :: The invention in the scope of the patent claim, because the air is covered and the water pipe "road frame part" above the nipple is covered, even if the water ball and other water puffed out by the rear wheel and: :: = Body: Fang, the water will also be dripped by the guide member, and the suction port of the cleaner penetrates into the interior of the air cleaner. In order to ensure the high water resistance of the air cleaner. And, there is no need to prevent two! The space-time cleaner adopts a structure in which the suction port is opened horizontally or downward = Yuan Fu covers the suction port itself, so the suction resistance can be controlled ^ 585968 ㈧ to improve engine performance. According to the second invention of the declared patent range, since it can be covered by the entire length of the air cleaner suction port by the guide member, water can be more surely prevented from penetrating into the air cleaner from the suction port. According to the 3rd invention of the patent scope of the patent, 'From the side, the cow's clothing is guided to the opposite side of the air inlet of the air cleaner and inclined downward, so the water recovered by the guide member' will not flow. The suction port of the air cleaner reaches the suction port on the opposite side, thus preventing water from entering the air cleaner from the suction port more surely. According to the fourth invention of the scope of the patent application, even if the water recovered by the guide member drips from the rear end of the guide member to the side wall of the air cleaner, the water is prevented from flowing to the suction port by the water stop wall, so that it is more reliably prevented. Water =: Seeps into air cleaner. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a speed locomotive with a waterproof structure of an air cleaner related to the present invention. FIG. 2 is a partial front cross-sectional view of the front portion of the speed locomotive. Of the composition. The chief officer 2 is located at a position on the front upper part of the body of the super locomotive 1 shown in FIG. 1, and the steering shaft 3 is inserted into the head pipe 2 in a freely rotatable manner. Then, a handle 4 is installed at the upper end of the steering shaft 3, a front fork 5 is glued to the lower end of the steering shaft 3, and a front wheel 6 is pivotally supported at the lower end of the front fork 5 in a freely rotatable manner. In addition, the lower tube 7 extends from the head tube 2 toward the rear of the vehicle body to an obliquely downward direction, and then bends and extends toward the vehicle body to be approximately horizontal. From the lower tube 7, a left (4) right pair of rear supports is divided in the middle. Strip 8, extending obliquely upward towards the rear of the car body. The head pipe 2, the lower pipe 7, and the like of the front part of the vehicle body are covered with a resin front cover 9, and the rear half of the cover 9 similarly constitutes a resin leg shield. Furthermore, a front and rear double seat 丨 丨 is arranged behind the aforementioned handle 4, and a low-bed type step board (footrest) 12 is installed between the seat 11 and the handle 4. After that, the space under the footboard 12 is equipped with a fuel tank 13 as a vehicle body mounting member. Furthermore, a rear-mounted engine 14 is mounted behind the footboard 12 as a power unit under the seat 11. "The above-mentioned rear suspension type engine 14 is arranged on the left side of the car body, and it is formed by integrating the transmission case 16. The transmission case 16 contains the engine 15 as a driving source and the unillustrated v It is composed of a belt-type automatic transmission and a reduction mechanism, and the transmission case 16 extends from the left side of the vehicle body 15 to the rear of the vehicle body. The rear wheel 轴 is pivotally supported at the rear end in a freely rotatable manner. Then, an air cleaner 18 is installed on the upper part of the transmission case 16, and an air suction pipe 19 extending from the air cleaner 18 to the front of the vehicle body is connected to the air intake system of the aforementioned engine 15, and a carburetor 20 ° is installed on the way After the suspension engine 14 is constituted, the connecting mechanism 22 is interposed to support the engine suspension bracket fixed to the aforementioned rear support bar 8 in a freely swingable manner. The rear end and the rear wheel 17_ It is mounted with a shock absorber ^ and supports the rear support bar 8. On the other hand, the lower part of the car body seat u is covered by a resin body cover 24, and the storage box 25 opened in the upper part of the above-mentioned rear suspension type engine "above" is interposed in the front and rear. Installation members and connection structure 585968

(5) Piece 27 is installed and arranged on the rear support bar 8. The storage box is extended to ensure a large capacity through the entire length of the seat 11, and the inside can simultaneously accommodate the half-hat hood H1 and the full-helmet hood H2 as shown in the figure. Then, the aforementioned seat 丨 is supported on the storage box 25, and the front seat is pivoted up and down with the hinge 28 as the center, and the aforementioned storage box 25 is opened and closed. In addition, the left and right rear support bars 8 are provided with a connecting member 29 in addition to the aforementioned mounting member 26 and the connecting member 27, and the holding members 30 are attached to the mounting members 26 and 27. In a speed locomotive related to this embodiment, the left side of the head pipe 2 in the space surrounded by the front cover 9 and the leg shield 10 at the front of the vehicle body, as shown in FIG. 2, is provided with A small-capacity auxiliary tank 31 is provided with a battery 32 on the right side of the head pipe 2. The flexible fuel hose 33 extending downward from the bottom of the above auxiliary groove 31 is connected to the large-capacity main groove provided below the footboard 12. . Here, the oil supply port is provided obliquely at the upper part of the front side of the auxiliary tank 31. The oil supply port 34 is covered with a removable tank cover 35, and a funnel 36 is installed around the oil supply port 34 to surround the oil supply port 34. . The above-mentioned hopper 36 is for those who receive fuel gasoline that overflows from the fuel supply port when the oil is supplied. The overflow pipe 37 extends downward from the bottom. The lower end of the overflow pipe is in the lower part of the vehicle body in front of the main tank 13 and opens to the atmosphere. The supplementary green pipe extends along the upper part of the auxiliary groove 31 toward τ branch, and the supplementary softener 38 is connected behind the tank 39, which is arranged obliquely on the left side of the main groove 13 disposed near the lower end of the aforementioned lower pipe 7 In the wide aspect, below the front of the seat 11, near the front end of each of the boxes 25 covered by the body cover 24, a fuel pump 42 is interposed with a support bar (not shown) -9-585968. The π is described in the connecting member 29. Then, the fuel pump 0 is connected to the negative pressure soft pressure of the suction gas extending from the material 15. By the suction pressure, the fuel pump 42 is driven from the fuel tank through The fuel hose 44 is sucked in and boosts the fuel, and the gasoline is supplied to the carburetor 20 via the fuel hose M to form a mixture. The tank 39 is a device for separating gasified gasoline introduced from the auxiliary tank 31 through the supplementary hose 38 into gasoline and gas, and is located at the lower part of the vehicle body, that is, near the lower end of the lower pipe 7 as described above. The left side of the fuel button is arranged to be inclined downward toward the front of the vehicle body. Then, a gas hose 40 extending from the front of the tank 39 to the front of the vehicle body and diagonally below is connected to the lower end of the aforementioned overflow pipe 37, and is guided from the rear of the tank = 之 出 柔 # 41 extends toward the vehicle body to the diagonal Above, this end is connected to the aforementioned carburetor 20. Here, the detailed structure of the water-proof structure of the air cleaner according to the present invention will be described with reference to Figs. 3 to 6. Furthermore, FIG. 3 is a side view of the air cleaner part of the Scooter locomotive. FIG. 4 is a cross-sectional view taken along the line of FIG. 3, FIG. 5 is a cross-sectional view taken along the line B-B, and FIG. 6 is a perspective view of the air cleaner. As shown in FIG. 6, the suction port 18 a is opened in front of the aforementioned air cleaner. As shown in FIG. 3, the suction port 18 a is connected to an suction duct 46 ′ provided inside the air cleaner 18. The duct 46 is opened at the crotch of the air cleaner. . Further, a cleaner element (not shown) is housed inside the air cleaner 18. Further, the above-mentioned suction pipe 19 is connected to the inner side of the front end of the air cleaner 18. In this embodiment, as shown in FIG. 3, the air inlet 18a of the air cleaner 18 of the left rear support bar 8 is directly above the water inlet through the molding of rubber = -10- 585968

A U-shaped (see Fig. 5) guide member 47 covers the upper portion of the air inlet 18a of the air cleaner 18 with the guide member 47. Here, the front end of the guide member 47 is located in front of the air inlet i8a of the air cleaner 18, and the rear end of the guide member 47 is located behind the air inlet 18a of the air cleaner 18. Therefore, the guide member 47 Cover it so as to pass the entire length of the suction port 1 ″ of the air cleaner 18. As shown in FIG. 5, the width dimension of the guide member 47 is set to be larger than the width of the air suction port 18 a of the air cleaner 18. It is large in size and is covered by the guide member 47 so as to pass the full width of the suction port 18a or more. The guide member 47 is 'viewed from the side' and is installed so as to face the suction port of the air cleaner 18 (the vehicle). The rear side of the body is inclined downward. The installation structure of the guide member 47 will be described here. The front end of the guide member 47 is a link-shaped portion 47a that partially forms a gap, as shown in Figs. 3 and 4. The link-shaped portion 47a is embedded in the rear support bar. 8. The periphery is fastened to the outer periphery of the rear support bar 8 by means of a band 48. Furthermore, a side view triangular mounting portion 47b is integrally formed on the outer surface of the rear portion of the guide member 47, so that a protrusion protruding on the inner surface of the upper end of the mounting portion 47b is protruded. 47c by embedding The rear member of the guide member ... is fixed to the connecting member 26 by means of a circular hole (not shown) formed in the connecting member 26. On the other hand, as shown in FIG. In the rear direction, between the air inlet 18a and the rear end of the aforementioned guide member 47, the rib-shaped water stop wall 18b is formed to be inclined downward toward the front of the vehicle body. In this embodiment, the air cleaner 18 is covered The suction duct 18 & upper water-guiding guide member 47 is installed on the rear support bar 8 directly above the suction port 18a, and even if water such as water spray splashed from the rear wheel 17 runs along the rear support bar 8 585968

When it flows to the front of the vehicle body, the water will be recovered by the aqueduct-shaped guide member 47, and it will flow to the rear of the vehicle along the bottom surface of the inclined guide member 47, and drip from the rear end of the guide member 47 to the air cleaner. 1 8 on. Then, at this time, the water stopper wall 18b formed on the outer side wall of the air cleaner 18 prevents the water dripping on the air cleaner 18 from flowing toward the suction port i 8a, so the water from the suction is reliably prevented Port 18a penetrates the air cleaner 18. In this embodiment, since the guide member 47 covers the entire length and width of the air inlet 18a of the air cleaner 18, it is possible to more reliably prevent water from entering the air cleaner from the air inlet 8a.丨 8. As described above, according to this embodiment, water is prevented from leaking from the air inlet 18a of the air cleaner 18 into the air cleaner 18, thereby ensuring the high water resistance of the air cleaner 18. When the rear suspension engine 14 is started, the fresh air sucked by the negative suction pressure of the engine 15 is introduced into the air cleaner 18 through the suction duct 46 through the suction port 18a. Alas, the fresh air introduced into the air cleaner 丨 8 is purified by a cleaner (not shown), and the air cleaner 18 is led to the carburetor through the suction pipe. Then, in the carburetor 20, gasoline and fresh air are supplied from the fuel tank 13 through the fuel pump 42. The gasoline and fresh air are mixed to form a predetermined air-fuel ratio (a / f), and the δ-hai mixture is supplied to the engine.丨 5 for burning. In this embodiment, it is not necessary to prevent water from penetrating the air cleaner 18: the suction port 18a is opened laterally or downwardly, or the suction port 18a itself is covered by an outer cover, so that so-called Directly inhale, which can reduce the resistance of inhalation and improve the performance of the engine. , Umoto & Ming specifically stated that it is suitable for speed locomotive -12- 585968

(9), but of course, the present invention is also applicable to any locomotive. [Effect of invention]

From the above description, according to the present invention, in a locomotive, after introducing fresh air into an air cleaner for purification, the fresh air is supplied to form a mixed gas, and a duct frame is installed directly above the air inlet of the air cleaner. The water pipe-shaped guide member 'covers the upper part of the air cleaner's intake port with the guide member, so that water can be reliably prevented from penetrating into the air cleaner, and at the same time, the effect of improving the engine performance can be achieved by reducing the suction resistance. [Brief Description of the Drawings] Fig. 1 is a side view of a speed locomotive. Fig. 2 is a front sectional view of a portion of a Sukoda locomotive. Fig. 3 is a side view of an air cleaner portion of a Sukoda locomotive. Fig. 4 is a sectional view taken along the line A-A in Fig. 3. Fig. 5 is a sectional view taken along the line B-B in Fig. 3. Fig. 6 is a perspective view of an air cleaner.

[Description of Symbols in the Drawings] 1 Scooter (locomotive) 8 Rear support bar (pipe frame) 18 Air cleaner! 8a Air inlet 18b Water stop 47 Guide member

Claims (1)

No. 091136663 Patent Application Chinese Patent Application Replacement (March 1993) Pickup and Application Patent Scope 1. A waterproof structure of air cleaner for locomotive. In the aforementioned locomotive, after introducing fresh air into the air cleaner for purification, The fresh air is supplied to form a mixed gas, which is characterized in that a pipe frame guide member is installed directly above the air inlet of the air cleaner, and the guide member covers the air cleaner above the air inlet of the air cleaner. 2. For example, the waterproof structure of the air cleaner for locomotive in the first patent application scope, wherein the front end of the aforementioned guide member is located at a position more than the air inlet of the air cleaner, and the rear end of the guide member is located at the air cleaner. Behind the suction port. 3. If the waterproof structure of the air cleaner for a locomotive is applied for item 1 or 2 of the scope of the patent application, wherein the guide member is installed from the side to be inclined toward the opposite side of the air inlet of the air cleaner and downward. 4. The waterproof structure of the air cleaner for locomotive such as in the scope of application for item 1 or item 2 wherein the front and rear directions of the body of the side wall of the air cleaner are formed between the air inlet and the rear end of the guide member. Waterstop. 5. The waterproof structure of the air cleaner for a locomotive according to item 3 of the patent application, wherein a water-stop wall is formed between the air inlet and the rear end of the guide member in the front-rear direction of the side wall of the air cleaner. .