JPS63202758U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of the operating device and the carburetor main body according to the present invention, and FIGS. 2, 3, 4, and 5 respectively show the operating device from the bottom side of the vaporizer main body. This is a diagram. 10: Operating device, 12: Vaporizer main body, 16,1
8: Throttle valve shaft and choke valve shaft, 22,
24: Throttle valve and choke valve, 26,2
8: Throttle lever and choke lever, 3
0,32: first and second spring members, 34,4
6: auxiliary throttle lever and auxiliary choke lever, 40, 54: third and fourth spring members,
42: Operation wire, 44: Locking part (rotational force transmission means), 52: Locking part (rotational force transmission means).

Claims (1)

[Claims for Utility Model Registration] (1) A carburetor body 12 and a pair of mutually parallel valve shafts 16, 1 rotatably supported by the carburetor body.
8, a throttle valve 22 and a choke valve 24 that are incorporated into the carburetor body and are respectively attached to the valve stem; a throttle lever 26 and a choke lever 28 that are respectively fixed to the valve stem; a first spring member 30 that exerts a biasing force on the valve shaft in a direction in which the opening of the throttle valve decreases; and a biasing force on the valve shaft of the chiyoke valve in a direction that increases the opening of the chiyoke valve. A carburetor operating device 10 for an engine mounted on a backpack-type portable working machine, having a second spring member 32 that exerts an auxiliary throttle lever 34 rotatable around the auxiliary throttle lever; a third spring member 40 exerting a biasing force on the auxiliary throttle lever in the same direction as in the first spring member; and a third spring member 40 coupled to the auxiliary throttle lever. a rotational force transmitting means for transmitting the rotational force of the auxiliary throttle lever, which is rotated by the operation wire against the biasing force of the third spring member, to the throttle lever; , an auxiliary throttle lever supported by the carburetor body and rotatable around the valve shaft of the throttle valve, which engages with the auxiliary throttle lever which is rotated against the biasing force of the third spring member; The auxiliary throttle lever 46 can be rotated in a direction opposite to the direction in which the biasing force of the second spring member acts upon engagement with the auxiliary throttle lever, and the rotational force of the auxiliary throttle lever is a rotational force transmitting means for transmitting a rotational force to the auxiliary yoke lever against a biasing force of a second spring member; a spring member, the magnitude of the biasing force of which is equal to the second
and a fourth spring member 54 whose biasing force is smaller than either of the spring members and the biasing force of the third spring member. (2) The auxiliary throttle lever engages with the auxiliary throttle lever until the opening degree of the throttle valve reaches full open.
The operating device for the vaporizer described in paragraph (1). (3) The means for transmitting rotational force to the throttle lever is provided in the throttle lever and comprises a locking portion 44 that can be locked to the auxiliary throttle lever, as claimed in Claim No. (1) of Utility Model Registration. The operating device for the vaporizer described in Section 1. (4) The means for transmitting the rotational force to the auxiliary yoke lever comprises a locking portion 52 provided on the yoke lever and capable of being latched to the auxiliary yoke lever, as set forth in claim (1) of the utility model registration scope. Vaporizer operating device.