JP7416664B2 - Fluid jet pipe and blower work equipment - Google Patents

Description

The present invention relates to a fluid jet tube, and particularly to a fluid jet tube suitable for use in blowing away fallen leaves, blowing leaves, etc. The present invention also relates to a blower working machine having a fluid jet pipe.

A portable air blower called a power blower is suitable for use in blowing away fallen leaves and the like.

Depending on the conditions of use and the location of use, this type of blower work machine may require a discharge jet with a relatively large air volume, or a powerful discharge jet with a relatively high wind speed. There is. For example, when blowing away a large amount of dry fallen leaves that are scattered over a wide area, a jet stream that is ejected in large quantities from a large air outlet is suitable. On the other hand, when removing densely moist fallen leaves that have accumulated in side gutters, a jet stream discharged at high speed from a narrow air outlet is more suitable. For this reason, it would be convenient if the volume and speed of the jet stream discharged from the jet pipe could be adjusted as appropriate during work.

Patent Document 1 listed below discloses a pressurized air regulating nozzle in which a regulating body is attached near the discharge port so as to be rotatable or movable along the longitudinal direction (see claim (1) of patent document 1). is published. According to Patent Document 1, this pressurized air regulating nozzle can easily adjust the volume, direction, wind pressure, etc. of the ejected air as necessary by appropriately changing the opening cross-sectional area or opening direction of the discharge port using a regulating body. (Page 1, line 18 to page 2, line 2 of the specification of Patent Document 1).

Patent Document 1 exemplifies a mode in which the adjusting body is swingably mounted in the vicinity of the discharge port in close proximity to the inner wall (see claim (2) of patent document 1). There is. This embodiment is shown in FIGS. 4 and 5 of Patent Document 1. According to this embodiment, "by setting each of the adjustment bodies to a desired position via the support shaft _a2 , the air volume and direction from the discharge port _e2 can be easily changed." (Page 6, line 1 to line 4 of the specification of Patent Document 1).

Microfilm of Utility Application No. 60-124049 (Utility Application No. 62-34198)

Indeed, in the case of FIGS. 4 and 5 of Patent Document 1, the direction of the discharge jet may be adjusted by changing the direction of the adjustment body. However, even if the direction of the adjustment body is changed, a large change in the air volume cannot be expected, and therefore it cannot be said that the air volume and wind speed can be reliably adjusted.

Furthermore, the systems shown in Figures 4 and 5 of Patent Document 1 can only change the wind direction to the lateral direction of the horizontally spreading jet head, so they are not suitable for the work of peeling off wet fallen leaves stuck to the ground with the discharge jet. do not have.

The present invention has been made in view of the above-mentioned circumstances, and aims to provide a fluid jet pipe and a blower work machine that can simultaneously and reliably adjust the air volume, wind speed, and wind direction of a discharge jet. Another object of the present invention is to provide a blowing machine suitable for peeling off wet fallen leaves stuck to the ground.

In order to solve the above problems, a fluid jet pipe according to the present invention includes: a jet pipe main body having an outlet opening; a guide shutter disposed within the outlet opening; an operating section for controlling the guide shutter; The guide shutter includes a windward edge extending along the inner surface of the jet tube body, and a wind direction guide surface extending from the windward edge to the leeward side. Further, the guide shutter is configured such that when the operation section is driven, the wind direction guide surface extends along the axis of the jet tube main body, and the windward edge is in an inactive position, and the windward edge is aligned with the inner surface of the jet pipe main body. (Claim 1) It is characterized in that it can be oscillated between an operating position in which the outlet opening is in close proximity to or in contact with the wind guide surface and the outlet opening is partially closed by the wind guide surface.

According to the fluid jet pipe of the present invention, when the guide shutter is in the inactive position, the outlet opening of the jet pipe main body is fully open. Therefore, the discharged jet stream has a maximum air volume, a minimum wind speed, and a wind direction that is in the axial direction of the jet tube main body. On the other hand, when the guide shutter is in the operating position, the outlet opening of the jet tube body is partially closed by the guide shutter. Therefore, the discharged jet stream has a minimum air volume and a maximum wind speed. In addition, when the guide shutter is in the operating position, the jet flowing within the jet tube main body is guided in the extending direction of the wind direction guide surface. Therefore, by driving the operating section to swing the guide shutter between the inactive position and the active position, the air volume, wind speed, and direction of the discharge jet can be adjusted simultaneously and reliably.

As a preferred embodiment, the ejection tube main body has a constricted shape having a constricted portion at the distal end, the constricted portion forms the outlet opening, and when the guide shutter is in the inactive position, the When the outlet opening is viewed from the front, the wind direction guide surface may be located in a position hidden in the narrowed portion (Claim 2).

The blower work machine according to the present invention includes the fluid jet pipe, a blower that blows air to the fluid jet pipe, a prime mover that drives the blower, and a body that supports the blower and the prime mover and is held by an operator. The machine includes a frame and a remote control unit for remotely driving the operating unit, and the remote control unit is disposed at a position within reach of the operator while holding the body frame. (Claim 3).

According to the ventilation work machine of the present invention, the guide shutter can be oscillatedly displaced by the operator operating the remote control section while performing the ventilation work. Therefore, during air blowing work, the air volume, wind speed, and wind direction of the jet jet discharged from the fluid jet pipe can be adjusted simultaneously, and work efficiency is improved.

In a preferred embodiment, the direction of the wind can be changed by displacing the guide shutter to the operating position while the operator holds the fluid jet pipe so that the outlet opening faces diagonally toward the ground. The fluid jet pipe may be included in the blower so that the guide surface is nearly horizontal (Claim 4). In this way, a high-speed jet stream can be discharged from the outlet opening in a nearly horizontal direction while the operator assumes a natural blowing work posture. Therefore, the worker can peel off wet fallen leaves stuck to the ground in a comfortable working posture.

1 is a schematic perspective view of a blower work machine according to an embodiment of the present invention. FIG. 2 is a longitudinal cross-sectional side view of the tip (front end) of the fluid jet tube in FIG. 1. FIG. FIG. 3 is a schematic perspective view of the fluid jet tube of FIG. 2, in which (a) shows a state in which the guide shutter is in an inactive position, and (b) shows a state in which the guide shutter is in an active position. 3A and 3B are cross-sectional views showing a preferred usage mode of the fluid jet pipe of FIG. 2, in which (a) shows a state in which the guide shutter is in an inactive position, and (b) shows a state in which the guide shutter is in an active position. FIG. 2 is a left side view of the tip (front end) of the fluid jet tube in FIG. 1. FIG. It also includes an explanatory diagram of the interlocking connection relationship between the proximal operating section, the operating force transmission member, and the distal operating section. It is a graph showing the relationship between the air volume and the wind speed when the guide shutter is displaced between the inactive position and the active position. FIG. 7 is a schematic perspective view of the blower working machine showing another example of the arrangement position of the hand-side operating section. It is an explanatory view showing other embodiments of a combination of a guide shutter and a jet pipe main body. (a) is a perspective view of an example of a combination of a semicircular guide shutter and a cylindrical jet tube main body, and (b) to (d) are a flat guide shutter and a jet pipe with a square outlet opening. It is a perspective view of an example of a combination of main bodies, and (c) and (d) are sectional views showing another example of the position of the support shaft of the guide shutter in the thing of (b).

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

The fluid jet pipe according to the present invention is suitable for application to a portable or transportable blower work machine. Specifically, backpack-type blower work machines and hand-held blower work machines can be mentioned. Here, a backpack-type ventilation working machine will be explained as an example.

A blower work machine 1 according to an embodiment of the present invention shown in FIG. 1 is a work machine suitable for carrying out work such as blowing away fallen leaves, etc. while carrying the machine body 2 on the back of an operator. .

The blower working machine 1 shown in FIG. 1 includes a backpack-type body frame (back frame) 3, and a blower 4, a prime mover 5, etc. that constitute the body 2 are mounted on the body frame 3. The prime mover 5 is a drive source for the blower 4, and is, for example, an internal combustion engine 5a such as a small air-cooled two-stroke engine. A fuel tank 6 is also mounted on the fuselage frame 3 for supplying fuel to the internal combustion engine 5a. An electric motor may be employed as the prime mover 5 instead of the internal combustion engine 5a. In this case, instead of the fuel tank 6, a battery as a motor drive power source is mounted on the fuselage frame 3.

The blower 4 includes a fan case 7 having an air outlet 7a. An elbow pipe 8 bent in an L-shape is connected to the outlet 7a, and a flexible bellows hose 9 and a rotary joint pipe 10 are connected to the elbow pipe 8. A fluid jet pipe 11 according to the configuration is connected. Thereby, the airflow created by the blower 4 is discharged from the tip (front end) of the fluid jet tube 11.

A handle 12 is fixed on the fluid jet tube 11. A worker carrying the body frame 3 on his back grasps the handle 12 with one hand (right hand) and performs the blowing work while controlling the direction and position of the fluid jet tube 11. At the tip (upper end) of the handle 12, an output operation member 13, such as a trigger type, for controlling the output of the prime mover 5 is disposed. The operator controls the output of the prime mover 5 by driving the output operation member 13 with his or her fingers while gripping the handle 12 .

The fluid jet pipe 11 includes a cylindrical jet pipe main body 14 having an outlet opening 14a at the tip (front end), a guide shutter 15 disposed within the outlet opening 14a, and a front side operation for controlling the guide shutter 15. 16. The guide shutter 15 is attached within the jet tube main body 14 so as to be swingable.

As will be described in detail later, the guide shutter 15 is oscillated between an inactive position and an active position by driving the front operation part 16. Thereby, the guide shutter 15 changes the opening area of the outlet opening 14a and changes the direction of the jet stream discharged from the outlet opening 14a. Therefore, by driving the front operation section 16 to change the attitude of the guide shutter 15, the air volume, wind speed, and wind direction of the discharge jet can be adjusted simultaneously. By operating the proximal operating section 25 disposed at hand, the operator can remotely drive the distal operating section 16 via the Bowden cable 26 as an operating force transmission member.

The guide shutter 15 shown in FIG. 2 is a short cylindrical member with a slightly smaller diameter than the jet tube main body 14, and has a shape with an oblique notch 17 in the upper upstream portion. The guide shutter 15 is pivotally supported at two opposing locations by support shafts 18L and 18R so as to be able to swing vertically relative to the jet pipe main body 14. Thereby, the guide shutter 15 can be oscillated between an inactive position P1 shown by a solid line in FIG. 2 and an active position P2 shown by a phantom line in FIG. 2. The notch 17 of the guide shutter 15 is provided to prevent the jet flow flowing inside the jet pipe body 14 toward the outlet opening 14a from being blocked when the guide shutter 15 is in the working position P2 in which the blast air is tilted to the maximum upward side. It is.

The guide shutter 15 has a windward edge 19 extending along the inner surface of the jet tube body 14 , a leeward edge 20 extending along the inner surface of the jet tube body 14 , and a windward edge 19 at the lower position. A wind direction guide surface 21 extending to the leeward edge 20 is provided. When the guide shutter 15 is in the non-operating position P1, the wind direction guide surface 21 extends along the axis X of the jet pipe body 14. As the guide shutter 15 shifts from the inactive position P1 to the active position P2, the windward edge 19 approaches or contacts the inner surface of the jet pipe main body 14, and the wind direction guide surface 21 partially closes the outlet opening 14a. close. When the guide shutter 15 is in the operating position P2, the wind direction guide surface 21 of the guide shutter 15 extends in a direction intersecting the axis X of the jet tube body 14.

As shown in FIGS. 2 and 3(a), when the guide shutter 15 is in the inactive position P1, the outlet opening 14a of the jet tube body 14 is fully open. Therefore, the discharged jet stream has a maximum air volume, a minimum wind speed, and a wind direction that is in the axial direction of the jet tube main body. On the other hand, when the guide shutter 15 is in the operating position P2, as shown in FIGS. 2 and 3(b), the guide shutter 15 closes the lower part of the outlet opening 14a of the jet tube body 14. That is, the opening area of the outlet opening 14a becomes smaller. Therefore, the discharged jet stream has a minimum air volume and a maximum wind speed. In addition, when the guide shutter 15 is in the operating position P2, the jet flowing inside the jet tube main body 14 is directed in the direction in which the wind direction guide surface 21 extends (in the examples of FIGS. 2 and 3(b), from the windward side to the leeward side. (diagonally upward).

In the example shown in FIG. 2, the jet tube main body 14 has a narrowed shape with a narrowed portion 22 at its tip, and this narrowed portion 22 forms an outlet opening 14a. When the guide shutter 15 is in the inactive position P1, the wind guide surface 21 is hidden behind the narrowed portion 22 when the outlet opening 14a is viewed from the front (left side in FIG. 2). There is a gap C between the lower surface of the guide shutter 15 and the inner surface of the jet tube body 14, and this gap C allows the guide shutter 15 to swing from the inactive position P1 to the active position P2. Become.

As a modification of the guide shutter 15 shown in FIG. 2, a guide shutter having a semicircular arc cross section may be used, in which the portions above the support shafts 18L and 18R of the guide shutter 15 shown in FIG. 2 are omitted.

A preferred manner of using the fluid jet pipe 11 shown in FIG. 2 will be described with reference to FIG. 4. When performing fallen leaf blowing work using the air blower 1 of FIG. 1, the operator holds the fluid jet tube 11 so that the outlet opening 14a of the jet tube main body 14 faces diagonally toward the ground G. As shown in FIG. 4(a), when the guide shutter 15 is in the inactive position P1, a jet flow F1 with a large amount of air is discharged from the fully open outlet opening 14a in the direction of the axis X of the jet tube body 14. This jet stream F1 hits the ground G obliquely and advances while spreading in a fan shape. Therefore, the usage mode shown in FIG. 4A is suitable for, for example, blowing away a large amount of dry fallen leaves scattered over a wide area.

Suppose that during the air blowing operation in the usage mode shown in FIG. 4(a), wet fallen leaves accumulated in the side gutter or wet fallen leaves stuck to the ground G are encountered. In this case, as shown in FIG. 4(b), the operator displaces the guide shutter 15 to the working position P2. As a result, the lower part of the outlet opening 14a is closed by the guide shutter 15, so the air volume decreases while the air speed increases. In addition, the direction of the jet F2 discharged from the outlet opening 14a is nearly horizontal. The jet stream F2 discharged from the outlet opening 14a in a nearly horizontal direction at high speed enters between the ground G and the wet fallen leaves and contributes to peeling off the wet fallen leaves. Moreover, the high-speed jet F2 can be discharged from the outlet opening 14a in a near-horizontal direction while the worker is in a natural blowing work posture holding the fluid jet pipe 11 diagonally downward, making it easier to remove stuck wet fallen leaves. It can be peeled off with a comfortable working posture. It feels like a bent jet pipe as a replacement part with the tip bent upwards.

As shown in FIG. 1, the distal operation section 16 disposed at the tip of the fluid jet pipe 11 can be remotely controlled by the distal operation section 25, which is disposed near the operator's hand and serves as a remote control section. It is said that The proximal operation section 25 and the distal operation section 16 are connected to each other by a Bowden cable 26 as an operation force transmission member. When the operator operates the proximal operating section 25, the distal operating section 16 is driven via the Bowden cable 26, and the guide shutter 15 is oscillated within the jet tube body 14.

As shown in FIG. 5, the front operation section 16 includes a front operation lever 27 as an operation member. The front operation lever 27 is fixed to one of the two support shafts 18L and 18R of the guide shutter 15 (18L in the illustrated example) outside the jet tube main body 14. A wire end receiving portion 28 is formed at the distal end of the distal operation lever 27 . The front wire end 24 of the inner wire 29 constituting the Bowden cable 26 is fitted into the wire end receiving portion 28 . The front operation lever 27 is always urged by a spring (not shown) so as to return to the original position shown in FIG. 5 (a position corresponding to the guide shutter 15 in the inactive position P1).

An outer tube fixture 30 is fixed onto the jet tube body 14. A front end portion 31a of an outer tube 31 that constitutes the Bowden cable 26 together with the inner wire 29 is fixed to the outer tube fixture 30. If the front operation part 16, including the area around the outer tube fixing device 30, is covered with a cover (not shown), collisions can be avoided during air blowing work, storage in a warehouse, etc., or transportation on a vehicle loading platform. This is preferable because it can prevent damage caused by.

As shown in FIG. 5, the proximal operation section 25 includes a mounting frame 32, and a proximal rotating body 33 is provided on the mounting frame 32. As shown in FIG. A support shaft 34 is fixed on the mounting frame 32, and a proximal rotating body 33 is disposed on this support shaft 34 so as to be rotatable in forward and reverse directions. A circumferential wire groove 35 and a wire end receiving portion 36 are formed on the outer periphery of the proximal rotating body 33 . A proximal wire end 37 of the inner wire 29 is fitted into the wire end receiving portion 36, and the inner wire 29 is received in the wire groove 35. A hand-side operating lever 38 serving as an operating member is fixed to the hand-side rotating body 33 .

An outer tube fixture 39 is disposed on the mounting frame 32 . The proximal end 31b of the outer tube 31 is fixed to the outer tube fixture 39.

In FIG. 5, when the operator rotates the proximal operating lever 38 in the clockwise direction, the Bowden cable 26 transmits the driving force, and the distal operating lever 27 is rotationally driven in the clockwise direction. As a result, the guide shutter 15 is oscillated clockwise within the ejection tube main body 14 from the inactive position P1 to the active position P2, as shown by the imaginary line in FIG. As a result, as already described with reference to FIGS. 2 and 3, the volume, speed, and direction of the jet discharged from the outlet opening 14a are simultaneously changed by the guide shutter 15. When the operator releases the hand-side operation lever 38, the front-side operation lever 27 is returned to the original position shown in FIG. 5 by the spring, and the guide shutter 15 is returned to the original non-operating position P1.

Although not limited to this, the hand-side operating unit 25 can move the hand-side operating lever 38 to any selected operating position by interposing a friction mechanism between the support shaft 34 and the hand-side rotating body 33, etc. It is also possible to have a configuration in which it can be stopped. In this way, even if the worker releases the hand-side operating lever 38, the hand-side operating lever 38 remains at the selected operating position, allowing the worker to operate the output operating member 13 and the fluid jet pipe 11. You can concentrate on controlling the orientation, improving work efficiency.

Further, the hand-side operation section 25 may be configured to be operable in stages, such as by employing a click-stop mechanism, but it is preferably configured to be operable in a stepless manner. In this way, since the opening area and the wind direction of the outlet opening 14a can be adjusted steplessly, the combination of the air volume, wind speed, and wind direction of the discharge jet can be finely adjusted.

FIG. 6 shows the air volume (CFM: cubic feet per minute) and wind speed obtained when the area of the outlet opening 14a is changed by swinging the guide shutter 15 in the blower work machine of FIG. (mph: miles per hour).

In FIG. 6, point A indicates a combination of the air volume and wind speed of the discharge jet when the guide shutter 15 is in the inactive position P1 (the area of the outlet opening 14a is maximum). When the guide shutter 15 was oscillated from the state at point A toward the operating position P2 to gradually narrow the exit opening 14a, data at points B to F were obtained. Point F is a combination of the air volume and wind speed of the discharge jet when the guide shutter 15 is in the working position P2 (the area of the outlet opening 14a is the minimum).

From the distribution of points A to F in FIG. 6, the relationship between the air volume and wind speed of the discharge jet when the area of the outlet opening 14a is changed steplessly is approximately shown by a straight line L. The numerical values in FIG. 6 are an example under certain conditions. However, no matter what the area of the exit opening 14a when fully opened, the output of the prime mover 5, the performance of the blower 4, etc., when the area of the exit opening 14a is changed by swinging the guide shutter 15, It is presumed that the relationship between the air volume and wind speed of the discharge jet can be approximately expressed by a straight line as shown in FIG. Therefore, it is considered that by swinging and displacing the guide shutter 15, it is possible to easily realize a combination of linear air volume and wind speed.

The hand-side operation unit 25 is disposed at a position that the operator can reach while carrying the machine frame 3 on his back. Therefore, the operator can operate the guide shutter 15 by operating the hand-side operating section 25 with his free hand while performing the ventilation work by operating the output operating member 13 and operating the direction of the fluid jet pipe 11. can be freely oscillated and displaced. During air blowing work, the air volume, wind speed, and wind direction of the discharge jet can be adjusted simultaneously according to the conditions at the work site, improving work efficiency.

In the example shown in FIG. 1, a hand-side operating section 25 is disposed near the base of the handle 12. In this case, the operator can hold the handle 12 with his right hand and operate the proximal operation section 25 with his free left hand even while operating the output operation member 13 of the prime mover 5.

Another example of the location of the hand-side operating section 25 is the left side of the lower front part of the fuselage frame 3 in FIG. 1 (the position on the opposite side from the elbow pipe 8). In this case, while holding the handle 12 and operating the fluid jet tube 11 with the right hand, the worker can operate the hand-side operating section 25 by placing his free left hand behind his waist.

Still another example of the arrangement position of the hand-side operating section 25 is shown in FIG. 7. In FIG. 7, the same components as in FIG. 1 are given the same reference numerals as in FIG. In the example of FIG. 7 as well, the fluid jet pipe 11 is provided with a handle 12 that is held by the operator, and the handle 12 is provided with an output operation member 13 for controlling the output of the prime mover 5. .

In the blower work machine 50 shown in FIG. 7, an arm 51 that can swing up and down is disposed on the left side of the lower front part of the body frame 3, as disclosed in, for example, Japanese Patent Laid-Open No. 10-299503. . A hand-side operating section 25 is disposed near the grip section 52 on the distal end side of the arm 51. The operator can operate the hand-side operating section 25 with the fingers of the left hand that grips the grip section 52.

In addition, in FIG. 7, the output operation member 13 on the handle 12 can also be arranged on the arm 51 similarly to the hand-side operation section 25.

As another embodiment, the guide shutter 15 and the jet tube main body 14 may be specifically combined as follows.

The example shown in FIG. 8(a) employs a guide shutter 40 having a semicircular arc cross section, and swings the center part of the windward edge 41 of the guide shutter 40 to a cylindrical jet tube main body 43 using a support shaft 42. It was supported as possible.

In the example shown in FIGS. 8(b) to 8(d), a flat guide shutter 45 is pivotally supported by a support shaft 46 in a jet pipe main body 44 having a square outlet opening 44a. In this case, the position of the support shaft 46 may be near the windward edge 47 of the guide shutter 45, as shown in FIG. 8(b), or on the leeward side of the guide shutter 45, as shown in FIG. 8(c). It may be located near the side edge 48, or it may be located intermediate therebetween, as shown in FIG. 8(d).

In both examples of FIG. 8, the guide shutters 40, 45 have windward edges 41, 47 extending along the inner surfaces of the jet pipe bodies 43, 44, and extending from the windward edges to the leeward side. The wind direction guide surface extends along the axis of the jet tube bodies 43, 44 in the inactive position P1 of the guide shutters 40, 45, and extends along the windward edge in the active position P2 of the guide shutters. Of course, the outlet openings of the jet tube bodies 43 and 44 are partially closed by the wind guide surfaces 41 and 47 close to or in contact with the inner surface of the jet tube body.

Although the embodiments of the present invention have been described in detail above, the specific configuration is not limited to these embodiments, and the present invention may be modified even if there are changes in the design within the scope of the gist of the present invention. Included in invention. In addition, the above-described embodiments can be combined by using each other's technologies unless there is a particular contradiction or problem in their purpose, structure, etc.

1 Blower work equipment 3 Body frame 4 Blower 5 Prime mover 11 Fluid jet pipe 14 Jet pipe main body 14a Outlet opening 15 Guide shutter 16 Operation section (front operation section)
19 Windward edge 20 Leeward edge 21 Wind direction guide surface 22 Narrowing portion 25 Remote control unit (hand side control unit)
P1 Non-working position P2 Working position X Axis of jet pipe body

Claims (4)

A fluid jet pipe comprising: a jet pipe main body having an outlet opening; a guide shutter disposed within the outlet opening; and an operation section for controlling the guide shutter, wherein the guide shutter is configured to control the jet pipe. The guide shutter includes a windward edge extending along the inner surface of the tube body, and a wind direction guide surface extending from the windward edge to the leeward side, and further, the guide shutter is configured such that the operating section is driven. Accordingly, the wind guide surface is in an inactive position extending along the axis of the jet tube body, the windward edge is close to or in contact with the inner surface of the jet tube body, and the outlet opening is partially closed by the wind direction guide surface. A fluid jet tube that can be oscillated between a closed working position and a closed working position. The jet tube main body has a constricted shape having a constricted portion at the tip, the constricted portion forms the outlet opening, and when the guide shutter is in the inactive position, the outlet opening is viewed from the front, The fluid jet pipe according to claim 1, wherein the wind direction guide surface is located at a position hidden in the narrowed portion. The fluid jet pipe according to claim 1 or 2, a blower that blows air to the fluid jet pipe, a prime mover that drives the blower, and a body frame that supports the blower and the prime mover and is held by an operator. , a remote control section for remotely driving the operation section, and the remote control section is disposed at a position within reach of a worker while holding the body frame. In a state where the operator holds the fluid jet pipe so that the outlet opening faces diagonally toward the ground, the guide shutter is displaced to the working position so that the wind direction guide surface becomes nearly horizontal. The blower work machine according to claim 3, wherein the fluid jet pipe is included in the blower work machine.

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