JPH017606Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention connects a working device to a self-propelled vehicle in a separable manner, and provides one of an operating section and an actuating section connected by an electric wire on the self-propelled vehicle, and the other is provided on the self-propelled vehicle. The present invention relates to an electrical wiring structure of a working vehicle provided in a working device.

In the above work vehicle, the work equipment can be connected,
When separating, the operating part and the actuating part are connected or separated each time, which takes time and effort, and if there are many pairs of operating parts and actuating parts, they may be connected incorrectly. Something happened. Also, when separating the working equipment, forgetting to separate the operating part and the actuating part.
In some cases, electric wires were cut.

The purpose of the present invention is to eliminate the need for connecting and disconnecting the operating section and the actuating section through simple modification, and to ensure that incorrect connections and wire damage can be avoided.

The characteristic configuration of the present invention is that, in the electric wiring structure of the work vehicle mentioned above, a hook portion formed at the upper part of the connection part for the self-propelled vehicle of the working device is formed at the upper part of the connection part for the work device of the self-propelled vehicle. The engaging part formed at the lower part of the self-propelled vehicle connecting part is connected to the positioning part formed at the lower part of the working device connecting part in a state where the engaging part is hooked and locked to the locking part so as to be swingable back and forth. The electric wire is divided into a self-propelled vehicle side portion and a working device side portion, and as the working device and the self-propelled vehicle are connected, the self-propelled electric wire A state in which the terminal of the part and the terminal of the working device side electric wire part are automatically connected, and the terminals are arranged so that they are automatically separated as the working device and self-propelled vehicle are separated. The self-propelled vehicle side terminal is provided at an intermediate position between the locking portion and the positioning portion in the self-propelled vehicle connecting portion to the working device, and the working device side terminal is provided in the working device connecting portion to the self-propelled vehicle. The hook portion is provided at an intermediate position between the hook portion and the engaging portion.

In other words, when connecting the working device, the hook part on the working device side is hooked and locked to the locking part of the self-propelled vehicle.
By guiding and engaging the engaging portion into the positioning portion while supporting the load, left and right positioning can be easily performed.Moreover, by simply connecting or separating the working device, the self-propelled vehicle can be easily aligned. Since the side electric wire section and the work equipment side electric wire section are automatically connected and separated, it is no longer necessary to connect or separate the operation part and the actuating part, which was conventionally performed every time the work equipment was attached or removed. I was able to perform the attachment and detachment work efficiently. In addition, since each of the terminals is provided in the middle of the upper and lower connection parts, it is possible to prevent damage and short circuits due to contact with other objects during connection or disconnection work.Furthermore, when separating the work equipment, the electric wires The operating part side and the actuating part side of the electric wire are reliably separated, and when the working equipment is connected, the operating part side and the actuating part side of the electric wire are reliably connected in a predetermined combination. We have now been able to reliably prevent damage and incorrect connections.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a seedling planting device 3 is installed at the rear of a self-propelled vehicle that has a driver section 1 and a pair of left and right spare seedling storage devices 2, 2, etc., and is driven vertically by a hydraulic cylinder 4. The rice transplanters are connected by a link mechanism 5 so that they can be raised and lowered, and are configured to transmit power from a self-propelled vehicle to the seedling planting device 3, thereby forming a riding-type rice transplanter capable of planting eight rows.

As shown in FIG. 2, the driver's seat 6 is mounted so that it can be moved up and down via a hydraulic cylinder 7 so that it can be raised higher than the operating level. Consideration is given so that the upper end of the seedling stand 8 can be easily reached and seedlings can be easily replenished.

As shown in FIG. 3, a contact-type rocking sensor 9 detects whether the remaining amount of seedlings on the seedling tray 8 has fallen below a set value based on the position of the seedling tray relative to the upper edge of the seedling; , a switch 10 for taking out the detection result by the sensor 9 is provided on each of the plurality of seedlings on the seedling stand 8, and an alarm lamp 13 connected to each of the switches 10 by electric wires 11 and 12 is connected to the When at least one of the sensors 9 detects that the amount of remaining seedlings has fallen below a set value, a lamp 13 is automatically turned on to issue an alarm.

To configure the connection structure between the link mechanism 5 and the seedling planting device 3, as shown in FIGS. 3 and 4, a connecting portion for the self-propelled vehicle is formed at the front end of the body 14 of the seedling planting device 3. The locking member 15 is removably engaged with a locked member 16, which has a connecting portion to the seedling planting device 3 formed at the free end of the link mechanism 5, so that the locking member 15 is covered. A retaining pin 18 is removably attached to a lock pin 17, which is an example of an engaging portion, that protrudes from the locking member 15 so as to be inserted into the locked member 16 when the locking member 16 is engaged with the locking member 16. The locking member 15 and the locked member 16
It is configured to prevent the item from coming off. More specifically, there is a hook portion 4 at the upper end of the locking member 15.
0, and a locking portion 41 is formed at the upper end of the locked member 16 to allow the hook portion 40 to swing freely. Then, with the hook part 40 hooked and locked to the locking part 41, the link mechanism 5 is raised and the lock pin 17 is inserted into the engagement hole 42, which serves as a positioning part, formed at the lower part of the locked member 16. The structure is such that the guides are engaged and connected while positioning them left and right, and as described above, they are prevented from coming off. That is,
The seedling planting device 3 is constructed so that it can be separated from the self-propelled vehicle, and when driving on the road, as shown in FIG.
A removable traction tool 21 is attached to one end of the transmission case 19 in the width direction that forms the body of the seedling planting device 3 via a connector 20 provided at that location. , the locked member 1
6, and as shown in FIG. 7, a pair of idle wheels 23a,
By attaching a removable trolley 24 having 23b, the width direction of the seedling platform 8 is aligned with the front-rear direction of the self-propelled vehicle so that the total width is smaller than the total width during work. , the seedling planting device 3 is configured to be towed by a self-propelled vehicle.

As shown in FIGS. 3 to 5, the electric wire 1
1 and 12 are divided into self-propelled vehicle side portions 11a, 12a and seedling planting device side portions 11b, 12b, and the self-propelled vehicle side electric wire portions 11a, 12a.
Each terminal 25a or 26a is connected to the locked member 1.
6, the terminals 25b or 26b of the planting device side electric wire portions 11b, 12b are inserted at intermediate positions between the hook portion 40 and the lock pin 17 in the locking member 15. They are fixedly installed in each. Then, when the seedling planting device 3 and the self-propelled vehicle are connected and the locking member 15 and the locked member 16 are brought into a normal connected state, the self-propelled vehicle side of each of the two terminal pairs that should be paired. and both terminals 25a, 25b or 26a, 26 on the planting device side
b automatically enters the connected state, and the seedling planting device 3 and the self-propelled vehicle are separated, and the locking member 15 and the locked member 16 are separated from each other, and the self-propelled vehicle at both terminal pairs respectively. Both terminals 25a, 25 on the side and planting device side
By arranging the terminals 25a, 25b, 26a, 26b so that the terminals 26a, 26b or 26a, 26b are automatically separated, and simply connecting or separating the seedling planting device 3, the alarm lamp 13 and the switch 10... It is configured to connect and disconnect automatically.

As shown in FIGS. 3 and 4, the locking member 15
A switch 27 for detecting whether or not the locked member 16 is in a normal connected state is fixed to the locked member 16, and an alarm device 28 such as a lamp type or a buzzer type is attached to the switch 27. When the seedling planting device 3 and the self-propelled vehicle are in a state of poor connection, the alarm device 28 is automatically activated to issue a warning.

As shown in FIGS. 8 and 9, the connection structure of the truck 24 includes a pair of locking pins fixed to the end of the transmission case 19 on the side opposite to the side connected to the self-propelled vehicle. A pair of hooks 30a, 30b that act separately on 29a, 29b are pivotally connected to the truck frame 32 by a connecting shaft 31 so as to swing together, and the hooks 30a, 30b are pivotably coupled to the truck frame 32. Dynamic biasing spring 3
3 is attached to one hook 30a, and when the trolley frame 32 is operated to approach the transmission case 19 from below, the operating arm 34 connected to one hook 30a is fixedly attached to the transmission case 19. When the hook operation member 35 is pressed down, both the hooks 30a and 30b swing into the working position of engaging with the pin 29a or 29b, and the spring 33 moves the hooks 30a and 30b downward.
When the truck frame 32 is attached and fixed to the transmission case 19 while being biased to maintain the working position, and the truck frame 32 is moved away from the transmission case 19,
Both hooks 30a, 30b are pushed up and swung by the pins 29a, 29b, and the pin 29a or 29
At the same time, the spring 33 is switched to a state where the spring 33 biases both hooks 30a and 30b to maintain the released position,
The truck frame 32 is configured to be detached from the transmission case 19. That is, by simply operating the trolley 24 against the transmission case 19, it can be attached to the seedling planting device 3 in a state where it is received and supported, and by simply operating the trolley 24 by pulling it downward from the transmission case 19. It is constructed so that it can be removed from the seedling planting device 3.

The present invention can also be applied to connection wiring between a direction indicator provided in the seedling planting device 3 and a switch provided in the operating section 1 to operate this indicator, and furthermore, The present invention can also be applied to a device in which a rotary tiller or the like is connected in place of the device 3, and the switch 10 is referred to as an operating section 10, the alarm lamp 13 as an operating section 13, and the seedling planting device 3 as a working device 3.

[Brief explanation of the drawing]

The drawings show an example of the electrical wiring structure of a working vehicle according to the present invention, FIG. 1 is an overall side view of a riding rice transplanter, FIG. 2 is a schematic diagram of a seat drive device, and FIG. 3 is an electric circuit diagram. Figure 4 is a side view of the connecting part, Figure 5 is a sectional view of the terminal attachment part, Figure 6 is a side view of the traction tool attachment part, Figure 7 is a plan view of the seedling planting device in the towed state, and Figure 8
The figure is a perspective view of the truck attachment structure, and FIG. 9 is a side view of the truck attachment part. 3... Working device, 10... Operating unit, 11, 12
...Electric wire, 11a, 12a... Self-propelled vehicle side electric wire portion, 11b, 12b... Work equipment side electric wire portion, 1
3... Actuation part, 15... Self-propelled vehicle connection part, 16...
... Work device connection part, 17... Engagement part, 40...
Hook part, 41... Locking part, 42... Positioning part, 25a, 26a... Self-propelled vehicle side terminal, 25b,
26b... Working device side terminal.

Claims (1)

[Scope of utility model registration request] A working device 3 is separably connected to a self-propelled vehicle, one of an operating portion 10 and an actuating portion 13 connected by electric wires 11 and 12 is provided in the self-propelled vehicle, and the other is provided in the working device 3. In this electrical wiring structure for a work vehicle, a hook portion 40 formed on the upper part of the self-propelled vehicle connection part 15 of the work device 3 is a locking part formed on the upper part of the work equipment connection part 16 of the self-propelled vehicle. An engaging part 17 formed at the lower part of the self-propelled vehicle connecting part 15 is hooked and locked to the part 41 so as to be swingable back and forth.
The electric wires 11 and 12 are connected to the positioning part 42 formed at the lower part of the work device connecting part 16, and the electric wires 11 and 12 are connected to the self-propelled vehicle side part 11.
a, 12a and working device side parts 11b, 12b, and as the working device 3 and the self-propelled vehicle are connected, the terminals 25a, 26a of the self-propelled vehicle side parts 11a, 12a and the working device side portion 11b,
Terminals 25b, 26b of 12b are automatically connected, and as the working device 3 and self-propelled vehicle are separated, both terminals 25a, 25b, and 26
a, 26b are arranged so as to be automatically separated, the self-propelled vehicle side terminals 25a, 26a are connected to the locking portion 41 and the positioning portion 42 in the work device connection portion 16 of the self-propelled vehicle. Provided at an intermediate position,
An electrical wiring structure for a working vehicle in which the working device side terminals 25b and 26b are provided at an intermediate position between the hook portion 40 and the engaging portion 17 in the self-propelled vehicle connecting portion 15 of the working device.