JP3160992U - Operation switching device for spreader - Google Patents

Abstract

Disclosed is an operation switching device for a spreader that stops spraying from a spreader by stopping travel of a tractor without operating a hand switch. An operation switching device for a spreader A, which is mounted on a tractor B and sprays an object to be sprayed in a spray tank 1 by driving rotation by an electric motor 2c, wherein the electric motor 2c is started / stopped. Alternatively, the foot switch 6 that performs forward / reverse switching is provided behind the stepping on the clutch pedal 5 of the tractor B so that when the clutch pedal 5 is depressed, the electric motor 2c stops or reverses. . [Selection] Figure 1

Description

  The present invention relates to an operation switching device for a spreader. More specifically, the present invention is mounted on a rear or front portion of a tractor, and is configured such that spraying of objects to be sprayed in a spray tank is performed by driving rotation by an electric motor. The present invention relates to an operation switching device that performs start / stop switching or forward / reverse switching of an electric motor of a spreader.

  For example, a spreader mounted on the rear part of a tractor is mounted by a three-point support link mechanism above a working machine such as a tiller rotary mounted on the rear part of the tractor by a draw bar or a three-point hitch. In parallel with the tillage, granular fertilizers and seeds, or powdered and sandy lime powders (spreads) are sprayed.

Further, in recent years, in addition to spreading fertilizer and the like by a spreader performed in parallel with tilling by the tillage rotary, the forming of the straw by the molding machine is performed in parallel.
The molding machine is connected to a tilling rotary and is attached to the rear of the rotary, and is pulled by a tractor together with the tilling rotary during the molding operation.

By the way, the operation switching device that performs start / stop switching of the electric motor of the spreader mounted on the rear or front of the tractor or forward / reverse switching is a hand switch provided in the driver seat of the tractor. The operation switching of the spreader (spreading start, spraying stop) is performed by the switching operation by the hand switch (see, for example, Patent Document 1 and Patent Document 2).
In addition, in the molding operation of the soot using the molding machine, it is necessary to temporarily suspend the work by replenishing the powder tanks in the spraying tank of the spreader and replenishing the vinyl sheet that is covered along the molded soot. is there. That is, it is necessary to stop the tractor and replenish powder particles and vinyl sheets.

Japanese Patent Laid-Open No. 11-113473 (see paragraph number 0010 and the like) JP 2003-125621 A (see paragraph number 0012 and the like)

However, in the prior art, the operation switching (spreading start, spraying stop) of the spreader is performed by a driver's hand switch, while the tractor is stopped by using the clutch pedal at the driver's seat. This is done by stepping on.
Therefore, although the driver steps on the clutch pedal when replenishing powder or vinyl sheets, the driver may forget to operate the hand switch to stop the spreading of the spreader. That is, the driver notices that the tractor is stopped by stepping on the clutch pedal, and the driver stops the spreading operation of the spreader. Or, by stopping the tractor, an illusion that the spraying of the spreader has been stopped may be caused to pass the operation.
In addition, since spraying from the spreader continues even after the tractor is stopped, fertilizer waste due to excessive application of fertilizer, etc. to one place, and growth of vegetables due to excessive fertilizer It was also a factor causing problems such as affecting

  Conventionally, there has been known a spreader configured such that an electric motor of a spreader is stopped (spreading stop) by lifting a tillage rotary attached to the rear portion of the tractor in the middle of the work. However, if the tillage rotary is lifted during the forming of the forming rod, the forming rod collapses and the operation cannot be continued. Therefore, it cannot be used during the molding operation of the molding rod.

  Therefore, the present invention was devised to solve the above-mentioned problems, and the spreader that stops the spraying from the spreader by stopping the traveling of the tractor without operating the hand switch. It is to provide an operation switching apparatus for use.

In order to solve the above-described problems, the present invention is an operation switching device for a spreader that is mounted on a tractor and configured to perform spraying of an object to be sprayed in a spray tank by driving rotation by an electric motor. And
A foot switch that performs start / stop switching of the electric motor or forward / reverse switching is provided at the rear of the clutch pedal of the tractor, and the electric motor stops or reverses when the clutch pedal is depressed. It is characterized by comprising as follows.
Here, the foot switch is a push switch that is cut off from being energized by being pressed, and is disposed behind the pedal rod of the clutch pedal, and is provided by a switch release member provided on the pedal rod. It is suitable that it is configured to be pushed.

  According to such a configuration, by stepping on the clutch pedal of the tractor during the molding operation of the kite, the electric motor can be stopped or reversed to stop the spraying from the spreader.

According to the operation switching device for a spreader of the present invention, the electric motor can be stopped or reversed by depressing the clutch pedal during the molding operation of the bag. That is, spraying from the spreader can be stopped.
This eliminates the need to stop the spreader using the hand switch as in the prior art, thereby preventing waste of fertilizer particles after the tractor has stopped running. it can. In addition, the influence on the growth of vegetables and the like due to excessive fertilizer can be suppressed.

It is a side view showing the state where the spreader to which the operation switching device concerning this embodiment was applied was mounted in the rear part of a tractor. It is an expanded sectional view showing the spreading part of the spreader. It is electric wiring composition explanatory drawing of the operation switching apparatus which concerns on this embodiment. It is a perspective view which shows the state which attaches a foot switch to the tractor vehicle body part in the back of the depression of a clutch pedal. It is a schematic side view of the principal part which shows the relationship between the switch release member with which the pedal rod connection member of the clutch pedal is equipped, and a foot switch.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 is a side view showing a state in which a spreader to which the operation switching device according to the present embodiment is applied is mounted on the rear part of a tractor, and FIG. 2 is an enlarged cross-sectional view showing the spreader of the spreader. FIG.
In addition, as mounting to the tractor B of the spreader A, the mounting to the front part of the tractor B and the mounting to the rear part of the tractor B are main, but this embodiment, as shown in FIG. The form mounted on the rear part of the tractor B will be described as an example.

≪Spreader configuration≫
As shown in FIG. 1, the spreader A is mounted by a three-point support link mechanism E on the rear part of the tractor B and above a tilling rotary C mounted by a draw bar, a three-point hitch, etc. It is configured so that the powdered material (dispersed material such as fertilizer) is sprayed on the field mold.
The spreader A is attached to the spreader tank 1 mounted on the device machine frame a, the spreader 2 attached to the tank bottom of the spreader tank 1, and the spreader 2 to the soil surface such as the straw. A plurality of spraying hoses 3 are provided.

  As shown in FIG. 2, the spraying unit 2 includes a distribution funnel 2a, a feed roll 2b that is rotatably installed in the distribution funnel 2a, and an electric motor 2c that drives and rotates the feed roll 2b. Has been.

  As shown in FIG. 1, the spreader 2 of the spreader A configured as described above is spread by the start / stop switching operation of the electric motor 2 c by the hand switch 4 provided in the driver's seat S of the tractor B. Switching (spreading start, spraying stop) is performed.

  In the present embodiment, the switching of the spraying operation (spreading start, spraying stop) of the spreader A by the start / stop switching operation of the electric motor 2c is used as an alternative to the hand switch 4 to stop the traveling tractor B The operation switching device 7 having a foot switch (foot switch) 6 in addition to the hand switch 4 can be operated by the operator's foot operation of depressing the pedal 5 and releasing the depressed state. The power supply unit (battery) (not shown) and the electric motor 2c of the spreader B are connected to each other.

≪Configuration of operation switching device≫
FIG. 3 is an explanatory diagram of an electrical wiring configuration of the operation switching device according to the present embodiment.
The operation switching device 7 includes a connection terminal (connector) 8 to the power supply unit on one end side of the wiring, a connection terminal (gibbing) 9 to the electric motor 2c on the other end side of the wiring, and a hand switch (switch box) in the middle of the wiring. ) A foot switch (switch box) 6 is connected to the existing wiring part 7a to which 4 and the control box 10 are connected.
As shown in FIG. 3, the operation switching device 7 includes a new branch wiring portion 7 b that is branched from a midway portion of the existing wiring portion 7 a located on the connection terminal 8 side to the power supply portion. The foot switch 6 is connected to the part 7b.

  The foot switch 6 is a push switch formed so that the contact is released and the power supply is cut off when the switch unit 6a is pressed, and as shown in the figure, the connection terminal (give) 11 of the branch power supply unit 7b. The connection terminal (giboshi) 12 to be plugged in and connected is formed so as to be connected to an intermediate wiring portion of the existing wiring portion 7a.

FIG. 4 is a perspective view showing a state in which a foot switch is attached to the tractor body part behind the clutch pedal, and FIG. 5 is a positional relationship between the switch release member and the foot switch provided in the pedal rod connecting member of the clutch pedal. It is a schematic side view of the principal part which shows.
As shown in FIGS. 4 and 5, the foot switch 6 provided in the existing wiring portion 7a via the branch wiring portion 7b as described above is behind the pedal rod connecting member 5a of the clutch pedal 5 (the clutch pedal 5 of the clutch pedal 5). The electric motor 2c is energized by being attached to the vehicle body portion b of the tractor B located at the rear of the step) via the switch attachment bracket 13 and being pushed by the switch release member 14 attached to the pedal rod connecting member 5a side. Is designed to shut off.
That is, when the clutch pedal 5 is depressed, the switch release member 14 pushes the switch portion 6a of the foot switch 6 so that the current flow from the power source portion of the tractor B to the electric motor 2c is interrupted.

[Description of operation]
Next, the operation of the spreader A in which the operation switching device 7 including the foot switch 6 is applied to the existing wiring portion 7a as described above will be briefly described. Here, description will be made with reference to FIGS. 1 and 5 as appropriate.
As shown in FIG. 1, during the forming operation of the forming rod using the forming rotary D mounted behind the tillage rotary C, the powder tank is replenished to the spray tank 1 and the formed forming rod When the operation is temporarily interrupted, for example, to replenish the roll-wrapped vinyl sheet on the surface, when the clutch pedal 5 is depressed to stop the travel of the tractor B (the state of the two-dot chain line from the solid line state in FIG. 5) ), The switch part 6a of the foot switch 6 is pushed by the switch release member 14 provided in the pedal rod connecting member 5a of the clutch pedal 5, and the current flow to the electric motor 2c of the spraying part 2 is interrupted, and the electric motor 2c is stopped.
Thereby, spraying of the granular material from the spreader A is stopped. That is, without operating the hand switch 4 and without changing the forming posture of the straw forming by the tilling rotary C and the forming rotary D, the spraying of the powder from the spreader A is performed simultaneously with the stop of the traveling of the tractor B. It can be stopped and the spray tank 1 can be replenished with powder particles and vinyl sheet.

  When the replenishment of the powder and the vinyl sheet to the spray tank 1 is completed, the contact of the foot switch 6 becomes energized at the same time as the start of the tractor B that removes the foot from the clutch pedal 5, and the spray unit The electric current flows through the electric motor 2c of No. 2 to drive and rotate the spreading roll 2b, and the spraying of the powder from the spreader A is started.

The specific configuration of the embodiment of the present invention is not limited to the above-described embodiment, and there are design changes and the like without departing from the gist of the present invention described in claims 1 and 2. Are also included in the present invention.
The foot switch 6 can perform forward / reverse switching of the electric motor. For example, in the case of a spreader in which the spray unit is formed so that it can be opened and closed by the shutter unit, the movable shutter of the shutter unit is slid in the open direction by the normal rotation of the electric motor, and is slid in the close direction by the reverse rotation of the electric motor. The operation switching can be performed by the foot switch 6.
In this case, the foot switch 6 has a switch contact structure that reversely rotates the electric motor when the clutch pedal 5 of the tractor B is depressed and rotates the electric motor forward when the foot is released from the clutch pedal 5. The motor is a forward / reverse switching motor that rotates forward / reversely by forward / reverse switching operation of the foot switch 6.

DESCRIPTION OF SYMBOLS A Spreading machine 1 Spreading tank 2 Spreading part 2b Spreading roll 2c Electric motor 4 Hand switch 5 Clutch pedal 5a Pedal rod connection member 6 Foot switch 7 Operation switching device B Tractor C Tillage rotary D Molding rotary

Claims (2)

An operation switching device for a spreader that is mounted on a tractor and configured to perform spraying of an object to be sprayed in a spray tank by driving rotation by an electric motor,
A switch for starting / stopping switching or forward / reverse switching of the electric motor is provided at the rear of the depression of the clutch pedal of the tractor so that the electric motor stops or reverses when the clutch pedal is depressed. An operation switching device for a spreader characterized by comprising:   The switch is a push switch that is released from an energized state when pressed, and is positioned behind the pedal rod of the clutch pedal so that it is pressed by a switch releasing member provided on the pedal rod. The operation switching device for a spreader according to claim 1, wherein the operation switching device is configured.

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