JPH084397Y2 - Motorcycle fuel cock operation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a fuel cock operating device applied to a motorcycle.

[Conventional technology]

Conventionally, in a motorcycle, a fuel cock is provided in a fuel supply passage extending from a fuel tank to an engine. The fuel cock is disposed in the casing, and is connected directly to the valve body having the ON, OFF, RES, etc. positions formed between the fuel cock and the valve body to switch the valve body to each of the above positions. The operating member is provided to operate the operating member to supply the fuel stored in the fuel tank to the carburetor, or to stop the supply of the fuel to the carburetor. I have to.

[Problems to be solved by the device]

By the way, in a normal motorcycle, since the fuel is discharged from the fuel tank to the fuel supply passage by utilizing the action of gravity, the valve element of the fuel cock is arranged below the lowermost surface of the fuel tank. There is a constraint that you must do it.

On the other hand, the fuel cock of a motorcycle is subject to vibrations and shocks while traveling, so that a large operation is required when rotating the valve body so that the vibrations and shocks do not cause the valve body to rotate accidentally. It is structured to require force.

Therefore, in the conventional fuel cock operating device that operates the operating member attached to the valve body, the operating member is arranged below the lowermost surface of the fuel tank due to the restriction of the arrangement position of the valve body. In addition, there is a problem in operability such as operation in a bent state, and a large operation force must be applied to the operation member, which is also a problem in operation force.

In view of the above situation, an object of the present invention is to provide a fuel cock operating device for a motorcycle that can improve operability and reduce operating force.

[Means for solving the problem]

According to the present invention, the fuel for a motorcycle has a fuel cock (4) interposed in the fuel supply passage extending from the fuel tank (2) to the engine to switch between a fuel supply state and a fuel supply stop state by rotating the valve body (8). In the cock operating device, an operating pulley (10) integrally attached to the valve body (8) on the outer side of the valve body (8) and a pulley that is separated from the operating pulley (10). ) Is mounted on the vehicle body member (3) at a position higher than the mounting position of the operating member (13) for operating the operating pulley (10), and the operating member (13) integrally mounted on the operating member (13). ), A pair of wires (19) fixed to the engaging members (19b) at both ends, and a pair of outer tubes (1) covering the portions of the wires (19) excluding both ends. 19
a), an engaging member (19b) attached to one end of the wire (19) is attached to the operating pulley (10), and an engaging member (19b) attached to the other end of the wire (19) is attached to the operating pulley (10). The operating member (13) is engaged with each other, and both ends of the pair of outer tubes (19a) are respectively attached to the operating pulley (10) and a bracket (11, 15) provided on a side portion of the operating member (13). Stick to the operating handle (14)
The fuel cock (4) by moving the pair of wires (19) in different directions based on the operation of the fuel cock (4).
The operating pulley (10) of is rotating.

[Action]

According to the above configuration, the operation of the operation handle is transmitted to the operation pulley via the pair of wires, and the valve body is operated by rotating the operation pulley in an appropriate direction.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment.

FIG. 1 conceptually shows a main part of a motorcycle to which a fuel cock operating device according to the present invention is applied. The seat 1 of the motorcycle illustrated here has a pivot portion 1a at a front end portion thereof, and is arranged so as to be swingable in a direction of an arrow A in the drawing around the pivot portion 1a, that is, capable of being opened and closed vertically. As shown by the two-dot chain line in the figure, the fuel tank 2 is arranged so as to cover the fuel tank 2 in the closed state. As is clear from the figure, the fuel tank 2 has a fuel supply port 2a on its upper surface, and its periphery is covered with a vehicle body cover C that surrounds the frame 3 as in the conventional motorcycle. .

On the other hand, this motorcycle is provided with a fuel cock 4 at a portion of the frame 3 below the fuel tank 2 and above the lower edge of the vehicle body cover C.
As shown in FIG. 2, the fuel cock 4 is fixed to the mounting bracket 6 of the frame 3 via the casing 5, and the fuel intake port 5 a of the casing 5 is connected to the fuel tank 2 via the hose 7. On the other hand, the fuel outlet 5b is connected to a float chamber of a carburetor (not shown) via a hose (not shown).

Further, the fuel cock 4 has a valve body 8 inside the casing 5. The valve body 8 is rotatably supported inside the casing 5 and is turned on and switched between a fuel supply passage (not shown) from the fuel intake port 5a to the fuel intake port 5b. , OFF, RES, etc., and are arranged in the casing 5 in such a manner that the rotational axis thereof is oriented in a substantially horizontal direction and one end face 8a thereof is exposed to the outside of the casing 5. .

As is clear from FIG. 2, an operating pulley 10 is attached to the valve body 8 by a screw 9 on one end surface 8a exposed to the outside of the casing 5. Working pulley
10 has a disk shape having an annular groove 10a on the entire circumference of its outer peripheral surface, and is arranged in such a manner that its central axis coincides with the rotation axis of the valve body 8 and its peripheral portion A pair of notches 10b,
Have 10b. The notches 10b, 10b each have one end opening to the outer peripheral surface of the actuating pulley 10 and the other end having a circular shape, and are arranged in such a manner that they are close to the peripheral edge of the actuating pulley 10. It is set up.

Further, the fuel cock 4 has an adjustment bracket 11 on its casing 5. Adjustment bracket 11
Is extended outward in the radial direction of the working pulley 10, and its tip is bent at a right angle so as to face the outer peripheral surface of the working pulley 10 with a space, and a pair of notches 11a are formed in the bent portion. , 11a. One end of each of the cutouts 11a, 11a is opened on the front end surface of the adjustment bracket 11, and the other end of each of the cutouts 11a is formed in a circular shape, and the cutouts 11a, 11a are juxtaposed at appropriate intervals. Reference numeral 5c in FIG. 2 is a negative pressure inlet, which is connected to an engine intake manifold (not shown).

On the other hand, the motorcycle has an operating portion 12 at a portion of the frame 3 located behind the fuel tank 2. The operation unit 12 includes an operation pulley 13 as an operation member.
And an operating handle 14 and a bracket 15, which are fixed to the mounting bracket 16 of the frame 3 via the bracket 15. The operation pulley 13 has the same shape as the operation pulley 10 of the fuel cock 4, and the screw 17 is attached to the boss portion 15a of the bracket 15 via the operation handle 14 with the central axis thereof oriented in the vertical direction.
By being screwed together, it is rotatably supported together with the operation handle 14 about the central axis. As is apparent from FIG. 1, the operation pulley 13 is arranged on the frame 3 at a position higher than the mounting position of the operation pulley 10 described above.

Further, the bracket 15 has an adjusting plate 18 at one side edge thereof.
It has. The adjusting plate 18 is provided so as to project upward at a portion facing the outer peripheral surface of the operation pulley 13, and has a pair of notches 18a, 18a at the upper end edge thereof. Notches 18a, 1
8a is a pair of notches formed in the adjustment bracket 11
They have the same shape as 11a, 11a, and are arranged in parallel with each other at appropriate intervals in such a manner that one end of each is opened to the upper end surface of the adjusting plate 18.

Further, the motorcycle includes a pair of flexible push-pull wires 19,19. Wire 19,19
Is the outer tube 19a,
The engaging members 19b, 19b, 19b, 19b, which are covered with 19a and have a columnar shape, are fixed to both ends of the outer tubes 19a, 19a.
It has 0,20,20. The adjusting means 20 has a cylindrical bolt portion 20a in which each screw portion has a smaller diameter than the cutout 11a of the adjustment bracket 11 and the cutout 18a of the adjustment plate 18.
And a nut 20b that is formed to have a larger diameter than each of the notches 11a and 18a and is screwed into the screw portion of the bolt portion 20a, and the nuts 20c and 20d Engagement member 19b of wire 19 and outer tube 1
It is inserted between 9a.

As shown in FIG. 3, in these wires 19 and 19, one engaging member 19b is provided in the notch 11a of the adjustment bracket 11.
Via the notch 10b of the actuating pulley 10 and the other engaging member 19b is engaged via the notch 18a of the adjusting plate 18 into the notch 13b of the operating pulley 13 respectively. The portion is laid along the frame 3 in a state where the portion is appropriately curved. At this time, as shown in the figure, the adjusting means 20, 20, 20, 20 allows the tip portions of the individual bolt portions 20a, 20a, 20a, 20a to penetrate into the notches 11a or 18a, respectively, and The nuts 20b, 20b, 20b, 20b are arranged so as to abut against the adjustment bracket 11 or the outer end surfaces 11b, 18b of the adjustment plate 18, and the both ends of the outer tubes 19a, 19a are respectively adjusted by the adjustment bracket 11 described above. It is also fixed to the adjusting plate 18.

In the motorcycle configured as described above, in normal use, as shown by the chain double-dashed line in FIG.
12, the fuel cock 4 and the wires 19 and 19 connecting them are both the seat 1 or the vehicle body cover C
Will be covered by.

The valve element 8 of the fuel cock 4 from the above-mentioned normal use state
When operating, as shown by the solid line in FIG.
First, the seat 1 may be held in a state of being swung upward, and from this state, the operation pulley 13 may be rotated in an appropriate direction via the operation handle 14. Even during this rotation operation, the fuel cock 4 remains covered with the vehicle body cover C, and therefore, as clearly shown in FIG. 3, the operation pulley 13 or the operation handle 14 and the bracket 15 are provided. It is preferable that a mark indicating ON, OFF, RES, etc. positions corresponding to the rotationally occupied position of the valve body 8 is provided in advance between and.

When the operation pulley 13 is rotated via the operation handle 14, one wire 19 moves into the groove 13 of the operation pulley 13.
While being successively wound into the inside of the a, the wire 19 on the other side is sequentially paid out from the groove 13a of the operation pulley 13, and the working pulley 10 is unidirectionally operated by the cooperative action of the pulling force and the pushing force of the pair of wires 19, 19. Is rotated in the direction.
The rotation of the actuating pulley 10 is transmitted to the valve body 8 via the screw 9, and the valve body 8 is rotated in one direction around its axis, so that the rotational position of the valve body 8 with respect to the casing 5 is occupied. The position is changed to another position, and, for example, the above-mentioned fuel supply passage (not shown) is opened.

On the other hand, when the operation pulley 13 is rotated in the opposite direction from the above-mentioned state, this time the operating pulley 10 is not delayed due to the cooperative action of the pushing force of one wire 19 and the pulling force of the other wire 19. By rotating in the opposite direction, the rotationally occupied position of the valve body 8 with respect to the casing 5 is switched to another position, and, for example, the above-mentioned unillustrated fuel supply passage is closed.

During these operations, the wires 19, 19 are both moved inside the outer tubes 19a, 19a, and the movement acts on the valve body 8 as a moment, so that the wires 19 and 19 with respect to the position of the fuel cock 4 are moved. It is possible to control the valve body 8 with a comparatively light operating force regardless of the arrangement position of the operation portion 12, that is, regardless of the laying state of the intermediate portion thereof.

As described above, according to the operation device, the operation portion 12 can be arranged at an arbitrary position regardless of the arrangement position of the fuel cock 4, so that the operation can be easily performed. Further, since the fuel cock 4 is not directly operated, it is not necessary to form holes or cutouts for operation in the vehicle body cover C arranged on the outer side surface thereof, and the shape of the vehicle body cover C can be simplified. It becomes possible to reduce the manufacturing cost. Further, during normal use such as during traveling, all of the operation unit 12, the fuel cock 4, and the wires 19, 19 connecting them are covered with the seat 1 or the vehicle body cover C.
Unintentional malfunction of the valve body 8 due to contact or the like does not occur.

It should be noted that, in the above-described embodiment, the operating pulley 13 having a disk shape as an operating member and the operating handle 14 attached to the operating pulley 13 are provided, and the operating pulley 13 and the operating handle 14 respectively rotate around predetermined axes. However, the operating member of the present invention does not necessarily have to be a rotating disc.

[Effect of device]

As described above, according to the present invention, the valve element can be operated from the separated position by the operation of the operation handle, so that the operation member can be arranged at any position to improve the operability of the fuel cock. It becomes possible.

Moreover, since the operation of the operation handle is transmitted to the valve body via the operation member, the pair of wires and the operation pulley, a relatively light operation force is applied regardless of the position of the operation member with respect to the position of the fuel cock. It is possible to activate the valve body.

[Brief description of drawings]

FIG. 1 is a side view conceptually showing a main part of a motorcycle to which a fuel cock operating device according to the present invention is applied, and FIG. 2 conceptually shows a fuel cock operating device for a motorcycle according to the present invention. FIG. 3 is an exploded perspective view, and FIG. 3 is a plan view conceptually showing the essential parts of the fuel cock operating device for a motorcycle according to the present invention. 2 ... Fuel tank, 3 ... Frame (body member), 4 ...
… Fuel cock, 8 …… Valve disc, 10 …… Actuating pulley, 11,1
5 …… Bracket, 12 …… Operating part, 13 …… Operating pulley (operating member), 14 …… Operating handle, 19 …… Wire,
19a ... Outer tube, 19b ... Engagement member.

Claims (1)

[Scope of utility model registration request] 1. A motorcycle in which a fuel cock (4) for switching between a fuel supply state and a fuel supply stop state by rotating a valve body (8) is interposed in a fuel supply passage extending from a fuel tank (2) to an engine. In the fuel cock operating device, an operating pulley (10) integrally attached to the valve body (8) on the outer side of the valve body (8), and an operating pulley (10) separated from the operating pulley (10). An operating member (13) arranged on the vehicle body member (3) higher than the mounting position of (10) for operating the operating pulley (10), and an operating member (13) integrally attached to the operating member (13). The operation handle (14) for activating the pair of wires (1) and a pair of wires (1) having engagement members (19b) fixed at both ends.
9) and a pair of outer tubes (19a) that cover the portions of the wire (19) excluding both ends thereof, and the engaging member (19) attached to one end of the wire (19).
b) to the actuating pulley (10) and the engaging member (19b) attached to the other end of the wire (19) to the operating member (1).
3) respectively, and both ends of the pair of outer tubes (19a) are fixed to brackets (11, 15) provided on the side portions of the operating pulley (10) and the operating member (13), respectively. A two-wheeled motor vehicle characterized in that the working pulley (10) of the fuel cock (4) is rotated by moving the pair of wires (19) in different directions based on the operation of the operation handle (14). Fuel cock operating device.