JPH064351U - Sliding valve carburetor top cover and float body mounting structure - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] In a sliding valve type multiple carburetor, all top covers are attached to all carburetor main bodies by one fixing means, and all float bodies are Attach it to all carburetor bodies with the bolts in. [Structure] The carburetor main body 12 is provided with a lower boss 36 having holes 38 formed therein, and the float body 16 is provided with a boss 40 having holes 42 formed therein. Hole 4 in boss 40 of float body 16
The bolts 52 are inserted through 2 to attach all the float bodies 16 to all the carburetor bodies 12. On the other hand, the carburetor main body 12 is provided with the upper boss 44 having the holes 46 formed therein, and the top cover 14 is provided with the boss 48 having the holes 50 formed therein. The bolts 64 are inserted into the holes 50 of the bosses 48 of the cover 14 to attach all the top covers 14 to all the carburetor bodies 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for attaching a top cover and a float body to a main body in a sliding valve type carburetor.

[0002]

[Prior art]

 In a multi-cylinder internal combustion engine, a plurality of carburetors are arranged adjacent to each other and connected and fixed to each other. A method of connecting and fixing each carburetor in the multiple-equipped carburetor is disclosed in, for example, Japanese Patent Laid-Open No. Sho 63-186954. Etc. In this prior art, a positioning boss portion having concaves and convexes that are fitted to each other is integrally formed on each vaporizer body, and the concave portion positioning boss portion of one vaporizer and the convex portion positioning boss portion of the other vaporizer are formed. Mating. Further, a tubular connecting boss portion having a through space is integrally formed in each vaporizer, the through space of the connecting boss portion of each vaporizer is arranged in a straight line, and bolts are inserted between these connecting boss portions. Connect and fix the connecting bosses. A plurality of vaporizers are fixed by the positioning boss portion and the connecting boss portion.

[Problems to be solved by the device]

In a sliding valve type carburetor that opens and closes the intake passage by a sliding valve, a top cover and a float body are assembled to the carburetor body. Conventionally, when a top cover or a float body is attached to the carburetor body, generally, the four places of the top cover and the float body are attached to the carburetor body with screws. For this reason, when connecting multiple sliding valve type carburetors to form a multiple carburetor, attach a top cover and float body to the carburetor body for each carburetor, and then add multiple carburetors. The carburetors are connected and fixed by the fixing means, and two types of work are required: an assembling work of the carburetor itself and a connecting and fixing work of the carburetors.

The present invention has been made in view of the above points, and in the case of a multiple-equipped carburetor, the top cover and the float body are both attached to the carburetor main body and connected and fixed to a plurality of carburetors. By doing so, it is intended to simplify the man-hours of the assembling work and reduce the number of parts to reduce the cost. Even when used as a single carburetor, the purpose is to assemble the top cover and the float body to the carburetor body with a small number of fixing means to reduce the number of parts and reduce cost. .

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention relates to a sliding valve type multiple-equipped carburetor that connects a plurality of sliding valve type carburetors each having a main body, a top cover, and a float body. An upper boss with a hole is formed on each main body, a boss with a hole is formed on each top cover, and a boss with a hole is formed on each float body. Insert the fixing means through the holes of the boss of the float body, connect all the main bodies and all the float bodies by the fixing means, and also the holes of the upper bosses of all the main bodies and the holes of all the top cover bosses. The fixing means is inserted through the and, and all the main bodies and all the top covers are connected by the fixing means. When used as a single sliding valve type carburetor, an upper boss with a hole is provided on the main body, and a boss with a hole is provided on the top cover. The main body and the top cover were fixed by a fixing means that is inserted through the hole of the boss and another fixing means that is not inserted through the hole, and the lower boss in which the hole is formed is provided in the above-mentioned main body, and the hole is formed in the float body. A boss is provided, and the main body and the float body are fixed by a fixing means that is inserted through the lower boss hole of the main body and the boss hole of the float body, and another fixing means that is not inserted through the hole. .

[0006]

[Action]

 When connecting multiple sliding valve type carburetors, one fixing means such as a bolt is inserted through the holes of the lower bosses of all the carburetor bodies and the holes of all the float body bosses. As a result, all the vaporizers can be connected by the one fixing means, and each float body can be attached to each vaporizer body. Further, one fixing means such as a bolt is inserted into the holes of the upper bosses of the main bodies of all the carburetors and the holes of the bosses of all the top covers. As a result, all of the carburetors can be connected by the one fixing means, and all the carburetors and all the top covers can be attached. Further, in the case of one sliding valve type carburetor, the carburetor main body is provided with one fixing means in the axial direction that allows the float body to swing, and the fixing means is provided with another fixing means in the direction perpendicular to the fixing means. With the provision, the float body can be fixed to the carburetor main body by the two fixing means. Further, the vaporizer main body is provided with one fixing means in the axial direction that allows the top cover to swing, and the fixing means is provided with another fixing means in a direction perpendicular to the vaporizer. The top cover can be fixed to the main body.

[0007]

First Embodiment Next, the present invention will be described with reference to the drawings. 1 is a front view of an embodiment showing a connected state of a sliding valve type multiple carburetor according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a side view of the carburetor viewed from the direction A of FIG. It is a figure. The plurality of vaporizers 10 having the same shape are used. The carburetor 10 mainly includes a main body 12, a top cover 14 attached to the upper side of the main body 12, and a float body 16 attached to the lower side of the main body 12. An intake passage 18 is formed inside the main body 12, and a sliding throttle valve 20 that opens and closes the intake passage 18 is provided inside the main body 12. A throttle shaft 22 is rotatably attached to the upper portion of the main body 12 so as to pass through the main body 12, and the throttle shaft 22 and the sliding throttle valve 20 are connected by a connecting mechanism 24 to rotate the throttle shaft 22. The sliding throttle valve 20 is moved up and down.

As shown in FIGS. 1 and 2, on the outer surface of the main body 12, a pair of contact bosses 26, 28 for connecting adjacent vaporizers 10 to each other are formed at right angles to the intake passage 18. It is formed left and right in the direction. A convex portion 30 is provided on the tip surface of one of the contact bosses 26, and a concave portion 32 is provided on the tip surface of the other contact boss 28 so that the contact boss 26 and the contact boss 28 are in direct contact with each other. In some cases, the convex portion 30 and the concave portion 32 are fitted together. In addition, when a space is opened between the adjacent vaporizers 10, a ring 34 having a predetermined length is inserted in the convex portion 30 of the contact boss 26 to keep the adjacent vaporizers 10 at a predetermined distance. To

As shown in FIG. 1, two lower bosses 36 are provided at a lower portion of the main body 12 at intervals, and holes 38 are formed in the lower bosses 36 so as to be in the same straight line position with each other. It On the other hand, the float body 16 is provided with a boss 40 having such a length as to fit between the two lower bosses 36, and a hole 42 is formed in the boss 40.

As shown in FIGS. 2 and 3, two upper bosses 44 are provided at an upper portion of the main body 12 with a space therebetween, and the upper bosses 44 have holes 46 which are aligned with each other. Is formed. On the other hand, the top cover 14 is provided with a boss 48 having such a length as to fit between the two upper bosses 44, and a hole 50 is formed in the boss 48.

When a plurality of carburetors 10 configured as described above are connected, the convex portions 30 of the contact bosses 26 and the contact bosses 28 of the adjacent carburetors 10 are fitted to each other. If a space is provided between the adjacent vaporizers 10, a ring 34 having a predetermined length is inserted in the convex portion 30 of the contact boss 26 to keep the adjacent vaporizers 10 at a predetermined distance. Then, the holes 38 of the lower bosses 36 of all the main bodies 12 are aligned with each other, and at the same time, the holes 42 of the bosses 40 of the respective float bodies 16 are aligned with the holes 38 of the lower bosses 36 in each main body 12. Each float body 16 is placed against the body 12 so that they are on the line. Then, bolts 52 as fixing means are inserted into the holes 36 of the lower bosses 36 of all the main bodies 12 and the holes 42 of the bosses 40 of all the float bodies 16, and the tips of the bolts 52 are fixed with nuts 54. . At this time, cylindrical spacers 56 and 58 as shown in FIG. 1 are arranged between the carburetors 10 according to their intervals, and the bolts 52 allow the lower boss 36 of the main body 12 and the float body 16 to be disposed. When inserting the boss 40, the spacers 56 and 58 are also inserted. At this time, the ends of the spacers 56, 58 are machined so that the diameter of the inlet of the hole 38 is slightly larger so that the tip of the spacer 56, 58 fits into the inlet of the hole 38 of the lower boss 36. In this way, the lower bosses 36 of all the carburetor main bodies 12 and the bosses 40 of all the float bodies 16 are inserted by the bolts 52 as one fixing means, and the tips of the bolts 52 are made into one nut. By stopping at 54, all the carburetor bodies 12 and all the float bodies 16 are connected and fixed. Further, by disposing the cylindrical spacers 56 and 58 between the respective carburetors 10 according to their intervals, the distance between the respective carburetors 10 can be made to be a predetermined value.

The means for connecting the plurality of carburetors 10 through the holes of these bosses is not limited to bolts and nuts. For example, instead of the bolt, a method may be used in which a long shaft is threaded at both ends and two nuts are connected and fixed at both ends, or other known methods may be used.

As shown in FIG. 3, since the float body 16 is swingably attached to the carburetor body 12 about the position of the bolt 52, the swing tip of the float body 16 is fixed by the bolt 60. The bolt 60 can be attached at right angles to the bolt 52. This allows the float body 16 to be attached to the carburetor body 12 by the two bolts 52, 60. At the joint surface between the main body 12 and the float body 16, in order to prevent fuel from leaking from the joint surface, a sealing material 62 is previously bonded to one of the joint surfaces between the main body 12 and the float body 16.

Further, the holes 46 of the upper bosses 44 of all the main bodies 12 are aligned with each other, and the holes 50 of the bosses 48 of the top covers 14 of the respective main bodies 12 are aligned with the holes 50 of the upper bosses 44. Each top cover 14 is arranged with respect to the main body 12 so as to be on the line. After that, bolts 64 as fixing means are inserted into the holes 46 of the upper bosses 44 of all the main bodies 12 and the holes 50 of the bosses 48 of all the top covers 14, and the tips of the bolts 64 are fixed with nuts 66. . At this time, cylindrical spacers 68 and 70 as shown in FIG. 2 are arranged between the vaporizers 10 according to the distance between them, and the bolts 64 are attached to the upper boss 44 of the main body 12 and the top cover 14. When inserting the boss 48, the spacers 68 and 70 are also inserted. At this time, the spacers 68, 70 are processed so that the tips of the spacers 68, 70 fit into the inlets of the holes 46 of the upper boss 44, and the diameters of the inlets of the holes 46 are slightly increased. In this way, the upper bosses 44 of all the carburetor main bodies 12 and the bosses 48 of all the top covers 14 are inserted with the bolts 64 as one fixing means, and the tips of the bolts 64 are fitted with one nut 66. By stopping, all the carburetor main bodies 12 and all the top covers 14 are connected and fixed. Also, by disposing the cylindrical spacers 68, 70 between the respective vaporizers 10 according to the distance between them, the distance between the vaporizers 10 can be made predetermined.

As shown in FIG. 3, since the top cover 14 is swingably attached to the carburetor main body 12 about the position of the bolt 64, the swing tip of the top cover 14 is fixed by the bolt 72. The bolt 72 is mounted at a right angle to the bolt 64. This allows the top cover 14 to be attached to the carburetor body 12 with the two bolts 64, 72. In order to prevent fuel from leaking from the joint surface between the main body 12 and the top cover 14, a sealing material 74 is preliminarily adhered to one of the joint surfaces between the main body 12 and the top cover 14.

As shown in FIG. 3, the holes 46 of the upper boss 44 and the lower boss 36 are formed on a target (X-X axis, Y-Y axis) orthogonal to the position of the throttle shaft 22. Place holes 38 and. The contact boss 26 and the contact boss 28 are located between the slot shaft 22 on the Y-Y axis and the hole 38 of the lower boss 36. That is, the position of the slot shaft 22 is the center of all positions, and the position of the throttle shaft 22 is the center, and the holes 46 of the upper boss 44, the holes 38 of the lower boss 36, and the contact boss 26 are located on orthogonal coordinate axes. The contact boss 28 is positioned. As a result, it is possible to ensure the accuracy when assembling and connecting.

Although the vaporizer 10 has been described as being used as a multiple vaporizer in the above embodiment, the vaporizer 10 can also be used as a single vaporizer. That is, as shown in FIG. 3, the top cover 14 is fixed to the main body 12 with bolts 64 and bolts 62 as fixing means, and the float body 16 is fixed to the main body 12 with bolts 52 and bolts 60 as fixing means. To do. As described above, in the case of fixing the top cover 14 and the float body 16 to the main body 12 in a single vaporizer, it is possible to fix them with two bolts, respectively, and therefore, compared with the conventional one, The number of points is small and assembly work is easy.

[0018]

[Effect of device]

 As described above, according to the mounting structure of the sliding valve type carburetor top cover and the float body according to the present invention, all the carburetor bodies and all the float bodies are mounted by one fixing means, and All the carburetor main bodies and all the top covers are attached by one fixing means. Compared to the conventional carburetors in which the float body and the top cover are attached respectively, the number of parts is increased. This reduces the cost by reducing the number of parts and facilitates the desorption work. Also, when used as a single carburetor, the top cover and float body can be fixed to the main body with two bolts, respectively. Work can be performed easily.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment showing a connected state of a sliding valve type multiple carburetor according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of the vaporizer seen from the direction A of FIG.

[Explanation of symbols]

 10 ... Vaporizer 12 ... Main body 14 ... Top cover 16 ... Float body 22 ... Throttle shaft 26 ... Contact boss 28 ... Contact boss 30 ... Convex part 32 ... Recess 36 ... Lower boss 38 …… hole 40 …… boss 42 …… hole 44 …… upper boss 46 …… hole 48 …… boss 50 …… hole 52 …… bolt 54 …… nut 60 …… bolt 64 …… bolt 66 …… nut 72 ……bolt

Claims (4)

[Scope of utility model registration request] 1. A sliding valve type multiple carburetor for connecting a plurality of sliding valve type carburetors each having a main body, a top cover and a float body, wherein a lower boss having a hole and an upper boss having a hole are formed. Provided on each main body, provided a boss with a hole formed on each top cover, provided a boss with a hole formed on each float body, provided with a bottom boss hole for all main bodies and a boss hole for all float bodies. Insert the fixing means, connect all the main bodies and all the float bodies by the fixing means, and insert the fixing means into the holes of the upper bosses of all the main bodies and the boss holes of all the top covers. A mounting structure for a top cover and a float body of a sliding valve type carburetor, characterized in that all the main bodies and all the top covers are connected by the fixing means. 2. A body of the sliding valve type carburetor is provided with a throttle shaft, and a hole of an upper boss is arranged on one axis line of the orthogonal coordinate centering on the position of the throttle shaft, and the orthogonal coordinate is provided. 2. The mounting structure for a top cover and a float body of a sliding valve type carburetor according to claim 1, wherein the hole of the lower boss is arranged on the other axis of the. 3. A body of the sliding valve carburetor comprises a pair of contact bosses each having a concave portion and a convex portion that are fitted to each other, and the pair of contact bosses is one of the orthogonal shafts. The mounting structure for the top cover and the float body of the sliding valve type carburetor according to claim 2, wherein the mounting structure is arranged on a line. 4. A sliding valve type carburetor having a main body, a top cover and a float body, wherein an upper boss having a hole is provided in the main body, and a boss having a hole is provided in the top cover, and an upper boss of the main body is provided. The main body and the top cover are fixed by a fixing means that is inserted into the hole of the top cover and the boss hole of the top cover, and another fixing means that is not inserted into the hole, and a lower boss having a hole is provided in the main body. A boss having a hole formed in the main body and the float body are fixed by a fixing means that is inserted through the hole of the lower boss of the main body and the hole of the boss of the float body, and another fixing means that is not inserted through the hole. Mounting structure for the top cover and float body of the sliding valve type carburetor.