TWI581700B - Emergency stop mechanism of manage machine - Google Patents

Description

Emergency stop mechanism of the management machine

The present invention relates to an emergency stop mechanism of a management machine intended to avoid conflicts of management machines.

Management machines such as tea garden management machines (described later), farmland management machines, and garden management machines are used in cultivated land, gardens, parks, and grasslands to manage shrubs, garden trees, pastures, and the like including tea trees. These management machines sometimes have a situation in which an emergency stop is required. For example, when the management machine is carried on the vehicle B (light vehicle), it is necessary to not collide with the vehicle and stop at the correct position. For example, as shown in Fig. 7, the operator drives the engine to operate with the operating handle, raises the side door C1 on one side of the vehicle B, and lowers the side door C2 on the other side, with the slope plate D ( The bridge) carries the tea garden management machine 1 on the carrying platform. At this time, when the front end of the crawler belt (crawler device) is close to the other side door C2, the side door C1 on one side rises, and there is no conflict with the rear end of the crawler belt, so that it can be accurately accommodated.

However, in the existing operation, it is very difficult to carry the front end of the crawler at a position adjacent to the side door C1 on one side. As a result, there is a problem that the erroneous operation collides, the side door C1 on the damaged side, or the front end of the crawler comes out, and the tea plant management machine 1 falls.

As means for solving this problem, the present invention provides an emergency stop mechanism (emergency stop switch) in the crawler belt.

Japanese Laid-Open Patent Publication No. 2002-10708 (Document 1) describes a cutting blade drive stopping device as a stopping mechanism in a management machine. The chip driving and stopping device described in the above document 1 stops the driving of the cutting blade in an emergency state, and interlocks with the placement operation of the clutch operating lever, and the respective mechanisms are linked to achieve the initial purpose.

Thus, the emergency stop mechanism of the management machine for the purpose of the present invention differs in purpose and structure.

[Patent Document 1] JP-A-2002-10708.

An object of the present invention is to provide an emergency stop switch that can easily and quickly operate a management machine when it is mounted on a vehicle, and can avoid collision and damage of the vehicle and the obstacle.

Further, it is an object of the present invention to avoid the danger even if the emergency stop switch functions in a state (a risk that occurs in normal field operations).

That is, the purpose is to prevent the front end portion of the emergency stop switch from colliding with the crops, grasses, and the like (for example, tea trees) that are rocking left and right when traveling, and to protect the emergency stop switch as an action structure when colliding with an obstacle or the like. , crops and vegetation, etc., if necessary, as an emergency stop structure.

In view of the above problems, the present invention is directed to the following points.

[A] The emergency stop switch that is placed at the front end of the management machine in the forward direction is used to stop the engine when it is mounted on the vehicle, so that the engine can be easily driven and quickly prevented from colliding with the vehicle. And damage (stop mechanism that stops at a predetermined position of the management machine, that is, a safety mechanism that implements both the visual and emergency stop switches).

[B] An emergency stop mechanism (safety mechanism) that can facilitate work or easy operation by anyone can be provided in a work in a narrow space when the vehicle is mounted.

[C] A configuration is provided in which an emergency stop switch (switch main body) is provided at the tip end of the crawler belt, and the damage of the emergency stop switch is avoided.

[D] The emergency stop switch is installed at the front end of the track to avoid crops or vegetation that are shaken left and right to avoid damage.

[E] It is an object of the present invention to provide a configuration for detecting an emergency stop switch provided on one side of the operation of the management machine and the reverse side (traveling direction), thereby avoiding collision of an unvisible range.

In order to achieve the above [A]-[E], the following patent application scopes 1-4 are proposed.

The first item of the patent application scope is an emergency stop mechanism (emergency stop device) of a management machine, the management machine including a traveling portion, and an emergency stop switch is provided at a front end portion of the traveling portion, the emergency stop switch is rocking left and right No action when crops or grass conflicts The engine that moves when the object is in conflict and stops the management machine.

The second aspect of the patent application is the emergency stop mechanism of the management machine according to the first aspect of the patent application, wherein the emergency stop switch is wound around a spring, the emergency stop switch is rod-shaped and the front end portion is chamfered Shape or conical shape.

The third aspect of the patent application is the emergency stop mechanism of the management machine according to the first aspect of the patent application, wherein the emergency stop switch is provided on each of the forward direction side and the backward direction side of the travel unit.

The fourth aspect of the patent application is the emergency stop mechanism of the management machine according to any one of claims 1-3, wherein the management machine is a tea garden management machine.

The invention of claim 1 is an emergency stop mechanism including a management unit of a traveling portion, and an emergency stop switch is provided at a front end portion of the traveling portion, and the emergency stop switch is in a crop or vegetation that is shaken left and right Does not act during a conflict, acts when it collides with an obstacle and stops the engine of the management machine.

Thus, the above [A]-[B] are achieved.

The invention of claim 2 is the emergency stop mechanism of the management machine according to the first aspect of the patent application, wherein the emergency stop switch is wound around a spring, the emergency stop switch is rod-shaped and the front end portion thereof is Chamfered or conical shape.

Thus, in the above [A]-[B], [C]-[D] can be realized.

The invention of the third aspect of the invention is the emergency stop mechanism of the management machine according to the first aspect of the invention, wherein the emergency stop switch is provided on each of the forward direction side and the backward direction side of the travel unit.

Thus, in the above [A]-[B], [E] can be realized.

The invention of claim 4 is the emergency stop mechanism of the management machine according to any one of claims 1-3, wherein the management machine is a tea garden management machine.

Thus at least the above [A]-[B] are achieved.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.

1‧‧‧tea garden management machine

100‧‧‧ Driver's seat

2, 2a‧‧ ‧ tripod

Lower end of 200,200a‧‧

3‧‧‧ gantry

300,300a‧‧‧foot support

301‧‧‧beam section

5,5a‧‧‧ Tracks

500,500a‧‧‧Driving department

6,6a‧‧‧ Track cover

600-1,600-1a‧‧‧ end

600-10‧‧‧ inclined section

600-11‧‧‧Flat Department

7,7a‧‧‧Emergency stop switch

7-1, 7a-1‧‧‧ switch body

8,8a‧‧. Spring

701 (701a) ‧‧‧ chamfered shape

702‧‧‧Conical shape

10,10a‧‧‧Limit switch

10-1,10-1a‧‧‧1st limit switch

10-2,10-2a‧‧‧2nd limit switch

11,11a‧‧‧ pedal

15‧‧‧ engine

1500‧‧‧ Grounding

20‧‧‧ cutting tools

21‧‧‧handle

A‧‧‧Chaling

B‧‧‧Vehicles

Side door on the side of C1‧‧‧

C2‧‧‧ side door on the other side

D‧‧‧Ramp board

E‧‧‧ tablet

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other schemas can be obtained based on these schemas without creative labor. Among them: Fig. 1 is a front view of a tea garden management machine in which an operation unit (stop switch) is provided.

Fig. 2 is a side view of Fig. 1.

Fig. 3 is a bottom view of Fig. 1.

Fig. 4-1 (a) and (b) are schematic views sequentially explaining the operation of the operation unit using the door of the vehicle.

4-2 (a) and (b) are schematic views sequentially explaining the operation of the operation unit using the stop plate provided in the vehicle.

5-1 (a)-(c) are schematic views sequentially explaining the operation of the operation unit using the door of the vehicle.

Fig. 5-2 (a) - (c) are schematic views sequentially explaining the operation of the operation unit using the stop plate provided in the vehicle.

Fig. 6 is a schematic view showing the relationship between the action unit and the switch unit and the engine.

Fig. 7 is a plan view schematically showing an example of a case where a tea garden management machine is mounted on a stage.

Fig. 8 is a plan view showing the main part of the emergency stop switch and the crawler cover in an enlarged manner.

The invention will now be described in detail in conjunction with the drawings.

First, the main part of the mechanical whole will be described with reference to Figs. 1 to 3 . In this example, the tea garden management machine 1 is composed of left and right columnar legs 2, 2a standing along the Chaling A (in the case of a pair, one side is 2, the other side is 2a, and the other components are the same) a cylindrical foot support portion 300, 300a, which is supported by the stand 2 and freely slid (for erecting the support stand 2), and is spanned A gantry 3 formed in a substantially gate shape from the direction in which the tea garden management machine 1 travels, formed by the beam portion 301 of the Chaling A (for example, a horizontal shape or a sloping shape) (the driving from the tea garden management machine 1) The direction is roughly the shape of the door. The left and right crawler traveling portions 500, 500a as traveling portions are provided on the lower end 200 of the stand 2. Further, a tea garden management machine B (a cutting tool, an engine, a blade support, a bag support, etc.) is provided at the beam portion 301 of the gantry 3.

Next, the structure of the stop mechanism will be described. In this example, the crawler belt 5 constituting the crawler traveling portion 500 and the crawler covers 6 and 6a (the crawler traveling portion 500) that cover the crawler belt 5 are provided at the lower ends 200, 200a of the stand 2. Both ends 600-1, 600-1a (end portion 600-1) of the forward and backward (collectively referred to as traveling) directions of the crawler cover 6 are viewed as a platform shape as shown in Fig. 3 on the bottom surface (planar surface). An action unit (emergency stop switch 7, 7a) protruding from the end surface is provided at the end portion 600-1. The emergency stop switch 7 uses the opposing force of the springs 8, 8a to ensure the protruding state when there is no collision (normal). Further, the emergency stop switch 7 is configured such that it does not operate even if it collides with a tea tree that is rocked left and right and/or has an elastic obstacle by the reverse force of the spring 8 or the like. Further, when the spring 8 collides with the side door C1 (wall surface) on one side of the vehicle B (when abnormal), it is compressed and recessed.

The emergency stop switch 7 has an example of FIGS. 4-1 and 4-2 and an example of FIGS. 5-1 and 5-2, illustrating one example.

In the examples of Figs. 4-1 and 4-2, the inner end portion of the emergency stop switch 7 switches the switch unit (limit switches 10, 10a) provided inside the end portion 600-1 of the crawler cover 6. That is, in the recessed state (collision), it is on, and the protruding state (normal) is off. Further, in a state where the pedal 11 provided on the side of the crawler cover 6 is unfolded, as shown in Fig. 2, the emergency stop switch 7 is concealed. In other words, when the worker rides on the pedal 11, it is inconvenient, so that concealment is performed, and the emergency stop switch 7 on the other side can be operated. When the pedal 11 is deployed, the operation (operation) of the emergency stop switch 7 on the concealed side is in an unnecessary state. The emergency stop switch 7 is provided in principle in the traveling direction of the crawler belt 5, but may be provided on one side or the other side of the crawler cover 6. In other words, in addition to the traveling direction of the crawler belt 5, although not shown, the emergency stop switch 7 is also provided in the backward direction, so that the safety can be further improved and the various operations of the tea garden management machine 1 can be performed.

In the examples of FIGS. 5-1 and 5-2, the inner end portion of the emergency stop switch 7 opens and closes another switch unit provided inside the end portion 600-1 of the crawler cover 6. The other switch unit is composed of a first limit switch 10-1, 10-1a as a preliminary action unit, and a first limit switch 10-1, 10-1a The structure of the second limit switches 10-2, 10-2a which operate in the same manner. For example, when the first limit switches 10-1, 10-1a (as the first limit switch 10-1) are in the open state, the engine 15 is stopped. Further, when the first limit switches 10-1 and 10-1a are in the open state, even if the engine 15 is not stopped, the second limit switches 10-2 and 10-2a (which operate in the same manner as the limit switch 10) are turned on. State, engine 15 stops. In addition, the state of the off refers to the above example. Others also refer to the examples of the above FIGS. 4-1 and 4-2.

Another configuration which is a feature of the present invention is an emergency stop switch 7 of the example shown in Fig. 8, which is a structure that does not operate when it collides with a tea tree and/or a resilient obstacle that is rocking left and right. To this end, the spring 8 is wound around the emergency stop switch 7, and its reaction force is adjusted, if necessary, the winding length or the like is set. Further, the switch main body 7-1, 7a-1 of the emergency stop switch 7 has a rod shape, and its front end portion is configured as a chamfer 701 (701a) and/or a conical shape 702. The chamfering 701 and/or the conical shape 702 are configured to avoid the structure of the tea tree and/or the elastic obstacle that is rocked left and right in all directions, such as left and right, up and down, and the like.

Further, as shown in Fig. 3, the end portion 600-1 is chamfered and/or conical in shape (the same as the chamfered 701 and/or the conical shape 702) as seen from the front surface (the same as the back side). For example, the left and right portions are inclined portions 600-10, 600-10, and the center portion thereof is a flat portion 600-11. Thereby, the crawler cover 6 which can avoid the tea tree is comprised. That is, it is possible to provide a mechanism (structure) that is safe and prevents damage of the inclined portion 600-10. The same feature can be achieved with respect to the end portion 700 of the emergency stop switch 7 using the safety mechanism (safe and prevent damage) of the inclined portion 600-10.

Further, the configuration of the engine stop mechanism will be described. In this example, the limit switch 10 is opened and closed by the recess of the emergency stop switch 7 (which is recessed by collision with an object such as the door C1 on one side, or the like). The opening is to stop the engine through ground 1500. Off is not grounded 1500, and drive operation, operation or driving and other continuous operation control. Further, although not shown, the engine 15 is stopped by the ground 1500 of the switch of the engine 15 as another means.

Although not shown, the push-type engine 15 non-stop switch is provided in at least two places on the driver's seat 100 of the tea garden management machine 1. In addition to the extraordinary stop switch, as described above, the emergency stop switch 7 is attached to the track cover 6, respectively. This is equipped with a higher level of security.

The operation of the limit switch 10 regarding the above-described emergency stop will be described with reference to Figs. 4-1 (a) and (b) and Figs. 4-2 (a) and (b). Fig. 4-1 (a) shows a state before the limit switch 10 collides with the side door C1 on one side. Figure 4-1 (a-1) is a side view thereof. Figure 4-1 (b) is a limit switch When the ten side door C1 collides with one side, the tea garden management machine 1 is safely stopped at a predetermined place of the stage. In this state, it is possible to prevent the tea plant management machine 1 from falling from the stage, and it is advantageous in that it contributes to safety, avoids breakage of the tea plant management machine 1 and the vehicle B, and/or maintenance. Further, Fig. 4-2 (a) shows a state before the limit switch 10 collides with the flat plate E provided on the side door C1 on one side. 4-2 (b) shows a state in which the tea garden management machine 1 is safely stopped at a predetermined place of the stage when the limit switch 10 collides with the flat plate E provided on the side door C1 on one side. For other parts, refer to Figure 4-1 above.

The operation of the emergency stop switch 7 regarding the above-described emergency stop will be described with reference to Figs. 5-1 (a) - (c) and Figs. 5 - 2 (a) - (c). Fig. 5-1 (a) shows a state before the first limit switch 10-1 and the second limit switch 10-2 collide with the side door C1 on one side. Figure 5-1 (a-1) is a side view thereof. (b) is a state in which the engine 15 of the tea garden management machine 1 is safely stopped when the first limit switch 10-1 collides with the side door C1 on one side. However, in the case where the engine 15 is not stopped for some reason in this state, that is, when the first limit switch 10-1 does not operate, the state becomes the state of 5-1th (c). Fig. 5-1 (c) shows a state in which the tea garden management machine 1 is safely stopped at a predetermined place of the stage when the second limit switch 10-2 collides with the side door C1 on one side. For other parts, refer to Figure 4-1 (a) and (b) above. Then, Fig. 5-2 (a) shows a state before the first limit switch 10-1 and the second limit switch 10-2 collide with the flat plate E provided on the side door C1 on one side. Figure 5-2 (a-1) is a side view thereof. Fig. 5-2(b) shows a state in which the engine 15 of the tea garden management machine 1 is stopped when the first limit switch 10-1 collides with the flat plate E provided on the side door C1 on one side. However, when the engine 15 is not stopped for some reason in this state, that is, when the first limit switch 10-1 does not operate, the state of FIG. 5-2 (c) is obtained. Fig. 5-2(c) shows a state in which the tea garden management machine 1 is safely stopped at a predetermined place of the stage when the second limit switch 10-2 collides with the flat plate E provided on the side door C1 on one side. For other parts, refer to Figure 4-2 (a) and (b) above.

20 in the figure denotes a cutting tool, and 21 denotes a handle.

The present embodiment uses the tea garden management machine 1 as an example, but is not limited thereto. In other words, it is not limited to any crops and plants that are the target of the tea tree.

Each of the above-described embodiments describes a preferred example, and it is also within the scope of the invention to change the structure or to change other structures and units to obtain the same effects.

1‧‧‧tea garden management machine

100‧‧‧ Driver's seat

3‧‧‧ gantry

500,500a‧‧‧Driving department

6,6a‧‧‧ Track cover

600-1,600-1a‧‧‧ end

600-10‧‧‧ inclined section

600-11‧‧‧Flat Department

7,7a‧‧‧Emergency stop switch

11,11a‧‧‧ pedal

15‧‧‧ engine

20‧‧‧ cutting tools

21‧‧‧handle

Claims (4)

An emergency stop mechanism of a management machine, wherein the management machine includes a traveling portion, and an emergency stop switch is disposed at a front end portion of the traveling portion, and the emergency stop switch does not operate when colliding with a crop or grass that shakes left and right, by The obstacles collide and act and stop the engine of the management machine. An emergency stop mechanism of the management machine according to the first aspect of the patent application is characterized in that a spring is wound around the emergency stop switch, and the emergency stop switch has a rod shape and a front end portion has a chamfered shape or a conical shape. In the emergency stop mechanism of the management machine according to the first aspect of the patent application, the emergency stop switch is provided on each of the forward direction side and the backward direction side of the traveling portion. The emergency stop mechanism of the management machine according to any one of claims 1-3, wherein the management machine is a tea garden management machine.