JPH0124350Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention involves interlocking and connecting a push/pull operation rod to an engine stop arm that is attached to the engine so as to be biased toward the starting side, and the rod is formed on the case wall. A locking sleeve having a smaller diameter than the hole is protruded toward the control section through the circular hole, and the end surface of the locking sleeve is in contact with the outer surface of the case wall to maintain the engine stop arm at the stop position. This invention relates to a mounting structure for an engine stop operating tool that is externally fitted.

In the conventional structure described above, a circular hole is provided in the vertical case vertical wall, and when the engine is stopped, the entire sleeve is positioned outward from the case vertical wall, and then the engine is allowed to start. When switching, it is necessary to align the sleeve so that it corresponds to the circular hole and fit the sleeve into the circular hole, making the operation time-consuming and troublesome.

In view of the above points, it is an object of the present invention to make it possible to easily perform a switching operation to a state in which engine starting is permitted through simple improvements.

In order to achieve the above object, the present invention provides the mounting structure for the engine stop operating tool described above, in which the outer surface of the case wall is inclined so that the lower part of the case wall is located toward the engine stop arm side, and the sleeve is With the end surface of the circular hole in contact with the outer surface of the case wall on the lower end side of the circular hole, the upper end of the circular hole is positioned on the opposite side of the engine stop arm from the end surface of the sleeve. It is characterized by being configured.

In other words, by displacing the sleeve upward when the engine is stopped, the upper side of the outer peripheral surface of the sleeve comes into contact with the upper peripheral wall of the circular hole, and accordingly, the sleeve is automatically moved to the corresponding position, and the sleeve is fitted into the circular hole. Let it happen.

Therefore, even though it is a simple improvement of making the outer surface of the case wall a sloped surface, it is possible to start the engine by simply raising the sleeve by lifting the rod, without having to align the sleeve and the circular hole. It has become possible to easily switch between states.

Hereinafter, embodiments of the present invention will be described in detail with reference to illustrative drawings.

An engine 3 is mounted on the front part of a running vehicle body with front and rear wheels 1 and 2 mounted on axles, and a control section D consisting of a driver's seat 4 and a control handle 5 is provided at the rear. A mower 6 is provided in the abdomen, and a belt type transmission device 7 and a transmission shaft 8 are provided.
The lawn mower is constructed so that engine power is transmitted to the mower 6 through the mower 6.

An engine stop arm 9 is provided in a state where the engine 3 is urged to be displaced toward the engine operating side, and an engine stop operating tool 10 is linked to this arm 9.

The engine stop operation tool 10 includes a push/pull operation rod 11 connected to the engine stop arm 9;
A sleeve 12 fitted over the rod 11, and
It consists of a nut 13 for positioning the sleeve 12 and an operating knob 14 screwed onto the end of the rod 11.

A case wall 16 is connected to the lower part of the operation panel 15 from which the handle 5 is protruded, and is inclined so as to be positioned downwardly and forwardly, and a circular hole 17 having a larger diameter than the sleeve 12 is formed in the case wall 16. As shown in FIG. 2, normally the sleeve 12 is inserted into the circular hole 17.
The sleeve 12 is inserted into the hole to allow the engine 3 to start, and when the engine is stopped, the sleeve 12 is pulled out from the circular hole 17 and the end face F is attached to the outer surface of the case wall 16, as shown in FIGS. 3 and 4. When brought into contact with each other, the engine stop arm 9 is pulled to the fuel cut position against the biasing force, and the engine is maintained in the stopped state.

The inclination angle of the case wall 16 is determined as shown in FIG. 3 in the above engine stopped state.
The upper end A of the circular hole 17 is set to be located rearward from the end surface F of the sleeve 12, and the sleeve 1
2, the upper part of the outer peripheral surface of the end side of the sleeve 12 comes into contact with the upper peripheral wall of the circular hole 17, and due to the cam action between the sleeve 12 and the circular hole 17, the sleeve 12 is inserted into the circular hole 17. It is configured to be displaced to the fitting position.

The sleeve 12 is made of urethane, and the rod 11
It is fitted by pressing into it, and under normal conditions,
The construction is such that even if the machine body vibrates and collides with the inner peripheral wall of the circular hole 17, noise is hardly generated.

In the figure, 18 is a sleeve 1 connected to the rod 11.
The protrusion for fixing 2 is shown.

[Brief explanation of the drawing]

The drawings show an embodiment of the mounting structure of the engine stop operation tool according to the present invention, and FIG. 1 is an overall side view of the lawn mower, FIG. 2 is a partially cutaway side view of the main parts showing the normal state, and FIG. FIG. 3 is a partially cutaway side view of the main parts showing the engine stopped state, and FIG. 4 is a partially cutaway view taken along the line -- in FIG. 3... Engine, 9... Engine stop arm, 11... Rod, 12... Sleeve, 16...
...Case wall, 17...Circular hole, F...End face of sleeve, A...Top end of circular hole, D...Control unit.

Claims (1)

[Scope of utility model registration request] A push/pull operation rod 11 is interlocked and connected to an engine stop arm 9 attached to the engine 3 so as to be biased toward the starting side.
The engine stop arm 9 is made to protrude toward the control section D side through a circular hole 17 formed in the case wall 16, and its end face F is brought into contact with the outer surface of the case wall 16 to maintain the engine stop arm 9 at the stop position. This is a mounting structure for an engine stop operation tool in which a locking sleeve 12 having a smaller diameter than a hole 17 is externally fitted onto the rod 11, and the outer surface of the case wall 16 is positioned downward toward the engine stop arm 9 side. When the end surface F of the sleeve 12 is brought into contact with the outer surface of the case wall 16 on the lower end side of the circular hole 17, the upper end A of the circular hole 17 is inclined at the end surface F of the sleeve 12. A mounting structure for an engine stop operating tool configured to be located on the opposite side of the engine stop arm 9.