JPH03185268A - Engine starting device in agricultural machine - Google Patents

Abstract

PURPOSE:To enhance the safety of operation of an engine starting device by providing a coil starter for starting an engine, and providing the starter knob of the coil starter with a checking device permitting operation of holding or pulling the starter knob to be carried out in the safe operating position of a transmission system, which position corresponds to engine drive. CONSTITUTION:To use an engine starting device in a planting machine, a knob receiver seat 29 in which the base portion of a starter knob 26 is fitted is formed in a control post 28 projecting upwardly from the rear portion of a vehicle body 1 and a pin hole 31 is provided through the side portion of the knob receiver seat 29. A lock pin 30 forming one part of a checking device 35 is fitted in the pin hole 31 in such a manner as being freely detached, and has its end portion engaged in or disengaged from a lock hole 32 provided through the base portion of the starter knob 26. The lock pin 30 is pulled against a spring 34 via a planting lever 10, a hydraulic lever 17 or a running lever 11 so as to draw the lock pin 30 out of the lock hole 32, to enable the starter knob 26 to be pulled out; i.e. the start of an engine 2 via a starter rope 35 is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an engine starting device for agricultural working machines and the like, and can be used for mobile agricultural working machines such as tillers, rice transplanters, binders, and harvesters.

(Prior Art and Problems to be Solved by the Invention) If the starter knob of the engine is pulled to start the engine while the latch running in the foreplanter and the planting clutch that transmits the seedling planting device are engaged, the engine starts. , it may be dangerous to start suddenly or to plant seedlings suddenly.

(Means for Solving the Problems) The present invention provides a starter knob of a recoil starter that starts an engine, in which the starter knob is gripped or pulled in a safe operation position of the transmission system based on the engine drive. The configuration of an engine starting device for an agricultural machine, etc. is provided with a check device that allows this.

(Function) Depending on the safe operating position of the transmission system based on the drive of the engine, the check device for the starter knob is released, allowing the starter knob to be pulled. This allows the engine to be started by pulling the starter knob.

Further, when the safe operation position of the transmission system is not set, the starter knob is restrained by the restraint device and cannot be moved even if the starter knob is pulled, and therefore the engine cannot be started.

(Effects of the Invention) Since the present invention has the above-mentioned configuration, the starter knob cannot be pulled out unless the safe operation position of the transmission system is set, and the working device is not accidentally activated and transmitted, thereby achieving safety. It is. The check device does not allow the starter knob to be pulled during check, so there is no need to repeatedly pull the starter knob idly, and there is less wastage of time to start the engine or the possibility of the engine failing to start due to incorrect operation. It's a good thing.

(Example) Fig. 1 shows a case where the present invention is applied to a seedling transplanter, and the seedling transplanter has an engine 2 mounted on the front part of a vehicle body 1, and a pair of wheels 3 on both left and right sides. is provided so as to be swingable up and down by a wheel transmission case 4, and a float 5 that supports part of the weight of the vehicle body and slides on the soil surface is provided on the lower side so as to be swingable up and down, and a control handle is provided at the rear end. A bacteria tank 7 is provided along the front side of the control handle 6, and a seedling planting device 8 is provided for separating the seedlings supplied from the seedling tank 7 and planting them on the soil surface below. .

Inside the assembly 1, a transmission device for transmitting the seedling planting device from the front transmission case 9 is installed, and this transmission device is provided with a planting clutch that turns on/off the transmission to the seedling planting device.
The planting lever 10 of the control handle 6 is used to turn on and off the plant. Further, the transmission case 9 is provided with a latch that runs on a transmission device that transmits the left and right wheels 3, and is configured to be turned on and off by a travel lever 11 provided on the control handle 6.

Further, the front part of the wheel transmission case 4 is provided to be movable up and down around the lift shaft 12, and is controlled to rise and fall by a lift sill 13 which is hydraulically expanded and contracted between it and the vehicle body 1. It is controlled by a lift control valve 16 that is switched and interlocked via a float 5 that can move up and down around the wheel 14 and an interlocking mechanism 15, and controls the lifting and lowering of the wheels 3 relative to the vehicle body 1 depending on the depth of the soil tillage. The supporting depth of No. 5 to the soil surface is maintained constant, thereby maintaining the planting depth of seedlings by the seedling planting device constant. Elevation control valve 1 that controls and operates an elevating cylinder 13 using hydraulic pressure
6 can be operated and fixed in a neutral position by a hydraulic lever 17 provided on the operating handle 6, and at this time, the vertical position of the wheel 3 relative to the vehicle body 1 can be fixed and maintained at a predetermined position.

The seedling planting device is configured so that the seedling tank 7 is guided in a horizontally reciprocating manner with respect to a seedling guide frame 19 having a seedling takeout port 18, and the seedling feeding belt 20 at the bottom is moved at the end of the lateral movement. It is configured to be driven intermittently to feed out the seedlings. or,
The seedling planting device 8 is configured in the form of a double crank mechanism in which a planting arm 22 is moved up and down by transmission rotation of a planting drive shaft 21, and a seedling planting piece 23 provided at the tip of the planting arm 22. By moving the seedlings up and down in a nearly elliptical planting trajectory and passing them downward through the seedling take-out port 18 of the seedling tank 7, the bedding portion of the seedlings in the seedling tank 7 is separated and clamped into a predetermined number of seedlings. The structure is such that seedlings are planted on a soil surface leveled by a float 5.

In front of the seedling tank 7 on the upper side of the vehicle body, a replenishment seedling stand 25 is provided on the upper side of the bonnet 24 to accommodate and carry supplies for supplying the seedlings into the seedling tank 7. A starter knob 26 for the engine 2, a speed change lever 27 for changing the running speed of the wheels, etc. are provided. A knob seat 29 into which the base of the starter knob 26 fits is formed on the operation boss 28 that protrudes upward from the rear of the vehicle body l.
A bin drawer is provided on the side of the lock bin 30 to allow it to enter and exit.
A lock hole 32 is provided at the base of the starter knob 26 that can engage the tip of a lock bin 30 that can be freely entered and exited from the outer circumferential side with respect to this bin puller, and a planting lever lO1 hydraulic lever 17
, or by pulling the lock bin 30 against the spring 34 via the wire 33 using the traveling lever 11, and removing the lock bin 30 from the lock hole 32.
The starter knob 26 can be pulled out to the rear (A).

A starter lobe 35 is connected to the starter knob 26, and its tip end is wrapped around the starter reel of the engine 2.

The above-mentioned lock bin 30, planting lever 10, hydraulic lever 17
, the travel lever 11, etc. constitute a restraining device 35 that restrains the starter knob 26 from being pulled out, so by operating these levers to the safe operation position, that is, the planting clutch can be disengaged by the planting lever lO. , set the lift control valve 16 to the neutral position by the hydraulic lever 17,
Furthermore, by turning off the latch that is moved by the travel lever 11, the lock pin 30 is pulled against the spring 34 via the wire 33, and the lock pin 30 that has been engaged with the lock hole 32 is disengaged, and the starter knob is removed. The engine 2 can be started by pulling (a) of 26.

When any of these levers 10, ]7, or ]1 is not in the operating position as described above, the lock pin 30 may be provided in such a manner that the lock hole 32 cannot also be removed.

Therefore, the starter knob 26 is restrained from being pulled.

In addition, in a form having only the planting lever 10 and the traveling lever 11, the restraining of the restraining device 36 may be released by turning both levers 10 and 11 to the cut position. , also, gear shift lever 2
In a configuration in which the seedling planting device is transmitted with the traveling speed change by the shift lever 27 at the neutral position, the traveling speed change by the shift lever 27 may be set to the neutral position, and the planting clutch may be set to the disengaged position. If the hydraulic pump is operated by the engine 2, the gear shift lever 2
The configuration may be such that this is performed by operating the hydraulic lever 17 to the neutral position at the neutral position of the travel gear shift or by disengaging the main clutch.

In FIG. 2, the lock bin 30 is removed from the lock hole 32 of the starter knob 26 to release the check by operating the travel gear shift lever 27 to the neutral position, and when the gear shift lever 27 is in any shift position, , the lock pin 30 engages with the lock hole 32 and the starter knob 26 cannot be pulled in the direction of arrow (A).

FIG. 3 shows that by operating the traveling speed change lever 27 to the neutral position, the knob seat 29 is projected from the knob hole 37 of the operation post 28 to the rear side (A) by the link 45.
When the shift lever 27 is at a shift position other than the neutral position, the knob seat 29 retreats from the knob hole 37, making it impossible to pull the starter knob 26. The knob seat 29 is pivotally supported 38 on the operation post 28 so as to be rotatable back and forth (b).

In FIG. 4, two knob seats similar to those in FIG. Alternatively, the restraining operation is interlocked via the wire 33 by operating the traveling lever 11 or the like. 39 is a return spring for the knob seat 29.

In FIG. 5, a knob cover 40 that can cover the starter knob 26 is provided on the operation post 28 so as to be movable up and down around the bottle shaft 41, and the knob cover 40 is pulled by a wire 33 against a spring 42 and rotated to the closed state. It can be done. When the planting lever 10, hydraulic lever 17, or travel lever 11 is operated to the off position or the neutral position, the wire 33 is loosened and the knob cover 40 is rotated upward by the spring 42 to be in the open state, and the starter knob 26 is pulled. I can do it. When any lever 10.17.11 is operated to the on position, the knob cover 40 closes and the starter knob 2
6 cannot be pulled.

In FIGS. 6 and 7, by operating the gear shift lever 27, the knob cover 40 is integrally attached to the gear shift shaft 4.
Turn the knob cover 40 three times to remove the notch 44 of the knob cover 40.
can be opposed to the rear side of the starter knob 26 at the neutral shift position N, and the starter knob 26 can be pulled (a).
The starter knob 26 is covered in a forward position F other than the neutral position N or in a reverse position R.

FIGS. 8 and 9 show that the two shift levers are bent into an arc shape around the shift shaft 43, and the arc-shaped portion is rotated to face the rear side of the starter knob 26, thereby moving the shift lever to the traveling position F.
, and covers the starter knob 26 at the planting traveling position P,
The starter knob 26 is configured to be able to be pulled rearward at the neutral position N.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially enlarged side sectional view, Fig. 2 is a side sectional view of another embodiment, and Fig. 3 is a partially enlarged side sectional view. 4 is a partial side sectional view showing a side sectional view of a partially separate embodiment; FIG. 5 is a side view of a partially separate embodiment; FIG. 6 is a partially separate side sectional view of the embodiment. 7 is a front view of this, FIG. 8 is a front view of a partially different embodiment, and FIG. 9 is a side view of this. (Explanation of symbols) 2 Engine 10 11 Travel lever 17 26 Starter knob 27 29 Knob receiver 30 32 Lock hole 35 36 Check device 37 40 Knob cover planting lever Hydraulic lever Gear shift lever Lock bin Starter rope knob hole

Claims (1)

[Claims] Starting the engine of an agricultural machine, etc., in which the starter knob of the recoil starter that starts the engine is provided with a check device that allows the starter knob to be grasped or pulled in a safe operating position of the transmission system based on the engine drive. Device.