JP3131294U - Back-loaded power sprayer - Google Patents

Abstract

A backpack type power sprayer capable of easily performing an operation on an engine output adjusting operation unit.
A backpack type power sprayer 1 includes a pump 2, an engine 3 that is a drive source of the pump 2, a fuel tank 4, a chemical tank 5 that stores a liquid to be sprayed or sprayed, and each of these members (pumps). 2, a backpack frame 6 that supports the engine 3, fuel tank 4, chemical solution tank 5), a strap 7 for hanging on the operator's shoulder, and an engine output adjustment operation unit 8 that adjusts the output of the engine 3. It is a thing.
[Selection] Figure 2

Description

  The present invention relates to a backpack type power sprayer.

2. Description of the Related Art Conventionally, there is known a backpack type power sprayer in which an engine is mounted on a backpack frame, and a spraying operation can be performed in a state in which a carrying belt is hung on an operator's shoulder and the backpack frame and the engine are carried on the back. This type of backpack power sprayer is capable of performing spraying work by turning an operating rod held with the right hand or left hand toward a specific target or swinging toward a specific target in the state of being carried on the back of the engine. An engine output adjustment operation section (throttle lever) that performs adjustment is usually provided in a position where the operator can return the wrist backward by reaching the back frame (for example, Patent Document 1 below).
JP-A-2006-762 (see FIGS. 1 and 9)

  However, the conventional one is inferior in operability because the throttle lever is located on the back side of the operator in the state where the operator is carrying the shoulder, and the throttle lever must be operated with the wrist turned backward. was there. In particular, those who are unfamiliar with the operation, such as those who operate for the first time, are very difficult to operate and lack practicality.

  The present invention has been made paying attention to such a problem, and a main object thereof is to provide a backpack type power sprayer capable of easily performing an operation on an engine output adjustment operation unit.

  That is, a backpack type power sprayer according to the present invention includes a backpack frame, an engine supported by the backpack frame, an engine output adjusting operation unit for adjusting the output of the engine, and a strap for an operator to carry. The engine output adjustment operation section is attached to a portion of the strap that faces forward for the worker in a state that the worker bears.

  Here, “the part of the carrying band facing forward with respect to the worker in the state carried by the worker” means “the part of the carrying band facing front in the state carried by the worker”. Moreover, the engine output adjustment operation part should just be an operation part for adjusting the output of an engine, and the operation mode and shape, such as a lever-shaped thing or a dial-like thing, are not ask | required in particular.

  If this is the case, when the operator operates the engine output adjustment operation unit while carrying the back-type power sprayer, the worker can access the engine output adjustment operation unit by simply bending the elbow forward. Thus, it is not necessary to return the wrist to the rear as in the prior art, and the operation to the engine output adjustment operation unit can be easily performed. Furthermore, because the engine output adjustment operation part is attached to the part of the strap that faces the front in the state carried by the operator, the position of the engine output adjustment operation part can be easily grasped in the state of carrying, Even those who are unfamiliar with the operation, such as those who are operating for the first time, are easy to operate and practical.

  As described above, the backpack type power sprayer according to the present invention provides an operation for the engine output adjustment operation unit by providing the engine output adjustment operation unit at a site that can be accessed by the operator bending the elbow forward. Is improved and is easy to use.

  In addition, if a stop operation unit for stopping the driving of the engine is provided in a portion of the strap that faces forward in the state carried by the operator, the operator can move the wrist backward as in the engine output adjustment operation unit. It is possible to access the stop operation unit with a comfortable posture without returning it to the operator, and it is possible to easily operate the stop operation unit and to grasp the position of the stop operation unit while carrying it. Even when the operation is required, the operation to the stop operation unit can be performed accurately without hunting the stop operation unit and searching for it.

  In order to efficiently mount the engine output adjustment operation section and the stop operation section on the strap, it is desirable to unitize the engine output adjustment operation section and the stop operation section. In this way, the arrangement positions of the engine output adjustment operation unit and the stop operation unit can be laid out at positions close to each other, and access from the engine output adjustment operation unit to the stop operation unit can be performed very easily. Therefore, the operability can be further improved.

  In particular, the carrying band is provided with a pair of belt bodies that are respectively hung on the left and right shoulders, and in the state carried by the operator, an operating rod is located on one of the pair of belt bodies, If the engine output adjustment operation part is provided in the belt, the engine output adjustment operation part is compared with the aspect in which the engine output adjustment operation part is provided on the other belt opposite to the side where the operation rod is located. When operating the engine output adjustment operation part with the other hand while holding the operating rod with your hand, you can operate the engine output adjustment operation part with an easy posture without being forced to bend the elbow. Contributes to improved operability.

  As described above, according to the present invention, it is possible to improve the operability of the engine output adjustment operation unit in the backpack type power sprayer.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the backpack type power sprayer 1 according to the present embodiment accommodates a pump 2, an engine 3 that is a drive source of the pump 2, a fuel tank 4, and a liquid to be sprayed or sprayed. A chemical tank 5, a back frame 6 for supporting these members (pump 2, engine 3, fuel tank 4, chemical tank 5), a strap 7 for hanging on the shoulder of an operator, and an output of the engine 3 An engine output adjustment operation unit 8 to be adjusted is provided. Since the pump 2, the engine 3, the fuel tank 4 and the chemical liquid tank 5 are well-known, detailed description thereof is omitted.

  The backpack frame 6 includes a pedestal portion 61 and a backrest portion 62 that can hit the worker's back when the worker is on the back. In the present embodiment, the pedestal portion 61 and the backrest portion 62, which are separate parts, are integrally assembled.

  The carrying band 7 includes a pair of band bodies 71 that are respectively hung on the left and right shoulders of the operator. Each band 71 is formed by laminating a relatively wide cushion body 711 and a relatively narrow band body 712 in the thickness direction. In this embodiment, the cushion body 711 and the band body 712 are integrally attached to each other so as not to be separated from each other by stitching at a predetermined pitch. In addition, the upper and lower ends of the band main body 712 are extended upward and downward from the upper and lower ends of the cushion body 711, respectively, and the upper end of the band main body 712 is fixed to the chemical liquid tank 5, and the lower end of the band main body 712 is It is attached to the pedestal 61 of the backpack frame 6. In the present embodiment, the attachment position of the upper end portion of the band main body 712 with respect to the chemical liquid tank 5 is set to a position close to the rear end side of the upper surface portion of the chemical liquid tank 5.

  The engine output adjustment operation unit 8 is connected to a throttle wire connected to a throttle valve of the engine 3. In this embodiment, the outer peripheral surface of the throttle wire is covered with the protective tube P. Note that a stop line (cord) connected to a stop operation unit 9 described later is also covered with the protective tube P together with the throttle wire. In the present embodiment, the engine output adjustment operation unit 8 is applied as a substantially dial-shaped one. Thus, the engine output adjustment operation unit 8 is attached to a portion of the carrying band 7 facing the front in a state carried by the worker, that is, a portion facing the front for the worker by an appropriate means. The engine output adjustment operation unit 8 according to the present embodiment is configured such that the output amount of the engine 3 can be adjusted by being gripped by an operator and rotated clockwise or counterclockwise. It should be noted that the rotation state of the engine output adjustment operation unit 8, that is, the output amount of the engine 3, can be grasped with the sense of operation of a finger without looking at the engine output adjustment operation unit 8. A projecting portion 82 is provided on the outer surface of the main body 81 so as to project outward from other portions. In the present embodiment, a bolt provided on the outer surface of the engine output adjustment operation unit main body 81 is applied as the protrusion 82.

  Similarly to the engine output adjustment operation unit 8, a stop operation unit 9 that stops the driving of the engine 3 is provided in a portion of the strap 7 that faces the front in a state where the operator is carrying it. In this embodiment, the stop operation unit 9 and the engine output adjustment operation unit 8 are unitized. The stop operation portion 9 is provided in an upward inclined portion U1 of the unit case U that is gradually inclined downward toward the front. A seesaw type switch is applied as the stop operation unit 9.

  As shown in FIG. 2, the backpack type power sprayer 1 having such a configuration has a spray nozzle at the tip in a state in which each belt body 71 of the carrying band 7 is hung on the left and right shoulders of the operator. The spraying operation can be performed by holding the provided operating rod S (omitted in FIG. 1) in one hand (right hand in FIG. 2). Then, the engine 3 is driven by pulling a lever of an engine starter (not shown), and the engine output adjusting operation portion 8 provided in a portion facing the front in the state of the carrying band 7 held by the operator is gripped in a predetermined direction. By turning, the output of the engine 3 can be adjusted, and a predetermined operation (in this embodiment, a seesaw type switch is pressed) on the stop operation unit 9 provided in the vicinity of the engine output adjustment operation unit 8 The operation of the engine 3 can be stopped by performing the operation.

  Thus, the backpack type power sprayer 1 which concerns on this embodiment attaches the engine output adjustment operation part 8 to the site | part which faces the front for an operator in the state which the operator carried in the strap 7. Therefore, when the operator operates the engine output adjustment operation unit 8 while carrying the backpack type power sprayer 1, the operator can access the engine output adjustment operation unit 8 simply by bending the elbow. Thus, it is not necessary to return the wrist backward, and the operation on the engine output adjustment operation unit 8 can be easily performed. Moreover, the engine output adjustment operation part 8 can be visually recognized in the state where it is carried, and it is easy to operate even for a person who is unfamiliar with the operation, such as a person who operates for the first time, and is highly practical.

  Further, since the stop operation unit 9 for stopping the driving of the engine 3 is provided in a part of the carrying band 7 facing the front in the state carried by the operator, like the engine output adjustment operation unit 8, The operator can access the stop operation unit 9 in an easy posture without returning the wrist to the rear, and can easily perform the operation on the stop operation unit 9. Moreover, the stop operation part 9 can be visually recognized in the state of carrying, and even when an emergency stop is required, the operation to the stop operation part 9 can be accurately performed without hitting the stop operation part 9 and searching for it. it can.

  In addition, since the engine output adjustment operation unit 8 and the stop operation unit 9 are unitized, the engine output adjustment operation unit 8 and the stop operation unit 9 can be efficiently attached to the strap 7 and the engine can be efficiently operated. The arrangement positions of the output adjustment operation unit 8 and the stop operation unit 9 can be laid out in positions close to each other, and the engine output adjustment operation unit 8 can access the stop operation unit 9 very easily. Further operability can be improved.

  The present invention is not limited to the embodiment described in detail above.

  For example, in FIG. 2, the operating rod is positioned on one side of the pair of belts in a state where the operator is carrying the shoulder, and the engine output adjustment operation unit is provided on the belt opposite to the one belt. Although the embodiment (hereinafter referred to as “the former embodiment”) has been illustrated, on the contrary, the embodiment in which the engine output adjustment operation portion is provided on the belt body on the side where the operation rod is located (hereinafter referred to as “the latter embodiment”). May be adopted. When the operator grips the operating rod with one hand and operates the engine output adjustment operation part with the other hand, the former mode requires the action of bending the elbow deeply or returning the wrist to the front However, in the latter mode, the engine output adjustment operation unit can be operated with an easy posture without being forced to bend the elbow or turn the wrist.

  In addition, when the carrying band is provided with a connection band that connects a pair of belt bodies on the front side of the operator, an engine output adjustment operation unit and / or a stop operation unit may be provided in the connection unit. .

  In addition, the shape and structure of each band (whether it is a multi-layered structure, etc.), material, etc. may be changed as appropriate.

  Further, it goes without saying that the shape and structure of the engine output adjustment operation part and the stop operation part are not limited to those shown in the embodiment, such as applying a lever-like one as the engine output adjustment operation part.

  Moreover, you may make it attach an engine output adjustment operation part and a stop operation part separately to a carrying band, respectively.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

1 is an overall schematic view of a backpack type power sprayer according to an embodiment of the present invention. The figure which shows the use condition of the backpack type power sprayer which concerns on the same embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Backpack type power sprayer 3 ... Engine 6 ... Backpack frame 7 ... Bearing belt 71 ... Band body 8 ... Engine output adjustment operation part 9 ... Stop operation part S ... Operation rod

Claims (4)

A back type power sprayer comprising a back frame, an engine supported by the back frame, an engine output adjustment operation unit for adjusting the output of the engine, and a carrying band for an operator to carry. ,
A backpack type power sprayer characterized in that the engine output adjustment operation unit is attached to a part of the carrying band facing forward with respect to the worker in a state carried by the worker. The back-type power sprayer according to claim 1, wherein a stop operation portion for stopping the driving of the engine is provided in a portion of the strap that faces the front of the worker in a state where the worker is carrying it. . The backpack type power sprayer according to claim 2, wherein the engine output adjustment operation unit and the stop operation unit are unitized. The carrying band is provided with a pair of band bodies that are respectively hung on the left and right shoulders, and the operating rod is located on one band body side of the pair of band bodies when the operator carries the band, and the one band body 4. A back-type power sprayer according to claim 1, 2 or 3, wherein the engine output adjustment operation section is provided in the engine.

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