Work equipment

The work machine design with dual-holding portions for the nozzle addresses the issues of separate storage and interference by securely attaching and compactly storing the nozzle, improving operability and convenience.

JP7755158B2Active Publication Date: 2025-10-16KOKI HLDG CO LTD
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Patent Information

Application Number
JP2022033378
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-04
Publication Date
2025-10-16
Estimated Expiration
2042-03-04

AI Technical Summary

Technical Problem

Existing blowers require separate storage and management of the nozzle portion, necessitating improved operability and ensuring sufficient holding force to prevent the nozzle from coming off during operation while avoiding interference.

Method used

A work machine design with a housing portion that includes a handle and a second housing connected to the handle, featuring holding portions that securely attach to both ends of the nozzle, allowing it to be stored compactly and out of the way, ensuring sufficient holding force and ease of attachment/detachment.

Benefits of technology

Improves workability by securely holding the nozzle without interfering with operation, enabling compact storage and easy handling, thus enhancing usability and convenience.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To improve work efficiency of a work machine.SOLUTION: An air blower 1 comprises a motor 10, a fan 10a rotated by driving force of the motor 10, thereby generating airflow F1 in an axial direction C1, a housing portion 2 housing in the inside thereof, the motor 10 and the fan 10a, and having an exhaust portion 12 on the front side in the axial direction C1, a main nozzle 6 formed cylindrical and mounted to the exhaust portion 12 in an attachable / detachable manner, and a battery pack 7 supplying electric power to the motor 10. The housing portion 2 has an upper side holding portion 13 and a lower side holding portion 14 supporting the main nozzle 6 by supporting the distal end portion 6a and a proximal end portion 6b of the main nozzle 6 which have been removed from the exhaust portion 12.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present invention relates to a work machine such as a blower. [Background technology]

[0002] One example of a work machine is a blower that has a fan that rotates using the driving force of a motor, a housing that houses the motor and the fan, and a nozzle that discharges air along the airflow generated by the rotation of the fan.

[0003] As an example of the above-mentioned blower, Patent Document 1 discloses a structure in which the nozzle portion is detachably attached to the housing portion. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2021 / 039291 Summary of the Invention [Problem to be solved by the invention]

[0005] In the blower described in Patent Document 1 mentioned above, the nozzle portion removed from the housing portion of the blower needs to be stored separately, which requires work to store and manage the nozzle portion, so there was a need for improvements in the operability of the blower.

[0006] In the case of a blower structure in which the nozzle part is held by the housing part after being removed from the housing part, it is necessary to ensure sufficient holding force so that the nozzle part does not come off during operation. Also, it is necessary to hold the nozzle part so that it does not get in the way.

[0007] An object of the present invention is to provide a work machine that improves workability. Another object of the present invention is to provide a work machine that can hold a nozzle portion with sufficient holding force so that it does not get in the way. [Means for solving the problem]

[0008] The working machine of the present invention includes a motor, a fan that rotates by the driving force of the motor and generates an air flow in an axial direction, a housing portion that houses the motor and the fan and has an exhaust portion on one side in the axial direction, and a nozzle portion that is formed in a cylindrical shape and is detachably attached to the exhaust portion, and the housing portion includes a holding portion that holds the nozzle portion by supporting one end side portion and the other end side portion of the nozzle portion removed from the exhaust portion. a first housing portion that houses the motor and the fan and has the exhaust portion; a handle portion that extends from the first housing portion along a direction intersecting the axial direction; and a second housing portion that is connected to the handle portion so as to be located on the opposite side of the first housing portion with the handle portion in between, and the holding portion includes a first holding portion provided in the first housing portion and a second holding portion provided in the second housing portion. . [Effects of the Invention]

[0009] According to the present invention, the workability of a work machine can be improved, and the nozzle portion can be held in the work machine with sufficient holding force so as not to get in the way. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a side view showing the structure of a work machine according to a first embodiment of the present invention. [Figure 2] 2 is a rear view showing the structure of the rear side of the work machine shown in FIG. 1. [Figure 3] 2 is a cross-sectional view showing the structure of the working machine shown in FIG. 1 taken along line AA. [Figure 4] FIG. 2 is a side cross-sectional view showing the internal structure of the work machine shown in FIG. [Figure 5] FIG. 2 is a perspective view showing the structure of the work machine shown in FIG. [Figure 6] 2A and 2B are diagrams showing the structure of a main nozzle attached to the work machine shown in FIG. 1, where (a) is an external view and (b) is a cross-sectional view. [Figure 7] FIG. 2 is a side view showing a state in which the main nozzle is housed in the work machine shown in FIG. [Figure 8] FIG. 8 is a side view showing a pre-trigger space in the structure shown in FIG. 7. [Figure 9] FIG. 8 is a cross-sectional view of the structure shown in FIG. [Figure 10]FIG. 8 is a perspective view of the structure shown in FIG. 7. [Figure 11] FIG. 5 is a side cross-sectional view showing the structure of a working machine according to a second embodiment of the present invention. [Figure 12] FIG. 12 is a side cross-sectional view showing a state in which the sub-nozzle is housed in the work machine shown in FIG. [Figure 13] FIG. 13 is a perspective view of the structure shown in FIG. 12. [Figure 14] 10A and 10B are diagrams showing the structure of a working machine according to a modified example of the present invention, in which (a) is a side cross-sectional view and (b) is an external perspective view. [Figure 15] 15A and 15B are diagrams showing a state in which the main nozzle is housed in the work machine shown in FIG. 14, where (a) is an external perspective view and (b) is a plan view. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

[0012] (Embodiment 1) In this first embodiment, a blower 1 will be described as an example of a work machine. As shown in FIGS. 1 to 5, blower 1 is a work machine that takes in air from the back side and discharges it from a nozzle provided on the front side, thereby blowing the air toward a work location or the like, and is also called an air duster or the like. The configuration of blower 1 will be described as follows: motor 10; fan 10a that rotates by the driving force of motor 10 and generates airflow F1 in axial direction C1 along the rotation axis of motor 10; housing portion 2 that accommodates motor 10 and fan 10a and has exhaust portion 12 on the front (one) side of axial direction C1; and main nozzle (nozzle portion) 6 that is formed in a cylindrical shape and is detachably attached to exhaust portion 12. The housing 2 includes a motor case (first housing) 3 that houses the motor 10 and the fan 10a and has an exhaust section 12, a handle 4 that extends from the motor case 3 in a direction (vertical direction) intersecting the axial direction C1, and a battery attachment section (second housing) 5 that is connected to the handle 4 and located on the opposite side of the handle 4 from the motor case 3. In other words, the motor case 3 and the battery attachment section 5 extend along the axial direction C1 so as to be approximately parallel to each other at both ends of the handle 4. That is, one end of the handle 4 is connected to the motor case 3, and the other end of the handle 4 is connected to the battery attachment section 5. The housing 2 has two housing halves molded from a synthetic resin such as nylon or polycarbonate, and the housing 2 is assembled by butting together these two housing halves.

[0013] In the blower 1 of the first embodiment, the direction along the rotation shaft of the motor 10 is referred to as the axial direction C1 and is also referred to as the front-rear direction, and the direction that intersects with the front-rear direction and in which the handle portion 4 extends (extension direction E1) is referred to as the up-down direction. Also, the direction perpendicular to the front-rear direction and the up-down direction is referred to as the left-right direction.

[0014] As shown in FIG. 4, a motor 10 and a fan 10a are housed within the motor case 3. The motor 10 includes a stator 10b, which is a coil, and a rotor 10c, which is a magnet. The fan 10a is a centrifugal fan attached to the rotating shaft of the rotor 10c. The fan 10a takes in air through an intake section 11 at the rear of the motor case 3 and sends it toward a main nozzle 6 attached to the front of the motor case 3. Specifically, within the motor case 3, the motor 10, including the fan 10a, is housed within a cylindrical container. The rotation of the fan 10a draws in air through a mesh section 11a of the intake section 11 and sends the air along the inner wall 10d of the cylindrical container toward the main nozzle 6. The rotation of the fan 10a generates an airflow F1 that flows along the axial direction C1. The air carried by the airflow F1 is discharged from the tip of the main nozzle 6.

[0015] In addition, a motor board 10e is attached to the motor 10, and is equipped with an inverter circuit for the motor 10 and a sensor for detecting the rotational position of the rotor 10c. This motor board 10e is also housed within the motor case 3.

[0016] The handle 4 also has a trigger (operation part) 9, which is a switch provided on the motor case 3 side so as to protrude forward (one side) in the axial direction C1. A control board 8 equipped with a microcomputer is provided inside the handle 4. A battery pack 7 that supplies power to the motor 10 is detachably attached to the battery attachment part 5. When the trigger 9 is operated, the driving force of the motor 10 rotates the fan 10a, and the rotation of the fan 10a generates an airflow F1 in the axial direction C1. As a result, air taken in from the rear intake part 11 is sent forward by the airflow F1 and discharged from the tip of the main nozzle 6.

[0017] 4 and 5, a protruding portion 15 that protrudes forward from the motor case 3 is provided directly below the exhaust portion 12 of the motor case 3, and the protruding portion 15 is provided with an LED 17 that brightly illuminates the area where air is blown, and an upper holding portion (first holding portion) 13, which will be described later, is provided adjacent to the LED 17. In other words, by providing the LED 17 on the protruding portion 15 that protrudes forward from the motor case 3, the work area can be brighter.

[0018] Next, the structure of the main nozzle 6 provided in the blower 1 will be described.

[0019] As shown in FIGS. 6(a) and 6(b), the main nozzle 6 is cylindrical, with a larger diameter at the other end than at the other end. Specifically, the base end portion (other end portion) 6b, which is attached to the exhaust portion 12 of the motor case 3 shown in FIG. 4, has an intake port 6d as a nozzle, and the tip end portion (one end portion) 6a, located opposite the base end portion 6b, has an exhaust port 6e as a nozzle. The base end portion 6b is thicker than the tip end portion 6a, and the main nozzle 6 has a tapered shape that narrows toward the tip end (the diameter G1 of the outer periphery 6c of the tip end portion 6a is smaller than the diameter G1 of the outer periphery 6c of the base end portion 6b). Therefore, the diameter D2 of the intake port 6d in the base end portion 6b is greater than the diameter D1 of the exhaust port 6e in the tip end portion 6a. 6(a), a protrusion 6f is formed on the outer periphery of the base end portion 6b, and when attaching the main nozzle 6 to the exhaust section 12 of the motor case 3, the protrusion 6f of the base end portion 6b is fitted into a groove 12a provided in the exhaust section 12 shown in Fig. 10 (described later) and the base end portion 6b is rotated, thereby attaching the main nozzle 6 to the motor case 3. The main nozzle 6 is formed from, for example, hard rubber.

[0020] Next, the housing structure of the main nozzle 6 in the blower 1 will be described.

[0021] As shown in FIGS. 7 to 10 , in blower 1, housing 2 is provided with a holding portion that holds main nozzle 6 by supporting tip end portion (one end portion) 6a and base end portion (other end portion) 6b of main nozzle 6 removed from exhaust portion 12. More specifically, housing 2, which is composed of motor case 3, handle portion 4, and battery attachment portion 5, has the holding portion capable of holding main nozzle 6, and main nozzle 6 removed from motor case 3 is housed in accommodation space 18 formed by housing 2, as shown in FIG. 7 . Specifically, main nozzle 6 is held by the holding portion in accommodation space 18, which is composed of protruding portion 15 provided on motor case 3, handle portion 4, and battery attachment portion 5. In other words, accommodation space 18 is the space in front of handle portion 4. In addition, the holding portion includes an upper holding portion (first holding portion) 13 provided on the protruding portion 15 of the motor case 3 and a lower holding portion (second holding portion) 14 provided on the battery mounting portion 5, and the main nozzle 6 is held by the upper holding portion 13 and the lower holding portion 14 so that it is aligned with the extension direction E1 of the handle portion 4.

[0022] Here, the motor case 3 including the protruding portion 15 is provided so as to protrude farther forward (one side) than rearward (the other side) in the axial direction C1 relative to the handle portion 4, and similarly, the battery attachment portion 5 is provided so as to protrude farther forward (one side) than rearward (the other side) in the axial direction C1 relative to the handle portion 4. Therefore, both the upper holding portion 13 and the lower holding portion 14 are positioned forward (one side) of the handle portion 4 in the axial direction C1, and as a result, the main nozzle 6 removed from the motor case 3 is accommodated in the accommodation space 18, which is the space on the front side of the handle portion 4.

[0023] As shown in Fig. 8, the upper holding portion 13 provided on the protruding portion 15 of the motor case 3 is a holding portion that holds the tip portion (one end portion) 6a of the main nozzle 6, and as shown in Figs. 9 and 10, it holds the main nozzle 6 by clamping the outer periphery 6c of the tip portion 6a of the main nozzle 6. More specifically, as shown in Fig. 4, a first groove 13a that opens toward the battery mounting portion 5 is formed at the tip of the protruding portion 15, and as shown in Fig. 10, the outer periphery 6c of the tip portion 6a of the main nozzle 6 is clamped into this first groove 13a, thereby holding the tip portion 6a of the main nozzle 6.

[0024] 9, the lower holding part 14 provided on the battery mounting part 5 has a protrusion 14a that protrudes toward the motor case 3, and is a holding part that holds the base end portion (other end portion) 6b of the main nozzle 6 by inserting this protrusion 14a into the inside of the main nozzle 6. In detail, by inserting the protrusion 14a provided on the lower holding part 14 provided on the battery mounting part 5 into the intake port 6d of the base end portion 6b of the main nozzle 6, the base end portion 6b of the main nozzle 6 is held by the lower holding part 14.

[0025] The main nozzle 6 thus removed from the motor case 3 has its tip end portion 6a held by the upper holding portion 13 and its base end portion 6b held by the lower holding portion 14. In other words, the main nozzle 6 is held at two points by the holding portions of the housing portion 2.

[0026] According to blower 1 of the first embodiment, the removed main nozzle 6 is held at two locations by the two holding portions of housing portion 2, thereby ensuring sufficient holding force for holding main nozzle 6. This makes it possible to prevent main nozzle 6 from coming off during work, improving the workability of blower 1.

[0027] Furthermore, by holding the main nozzle 6 with the upper holding portion 13 provided on the protruding portion 15 of the motor case 3 and the lower holding portion 14 provided on the battery attachment portion 5, the main nozzle 6 can be positioned and held in the storage space 18, which is the empty space directly below the protruding portion 15 of the motor case 3, thereby allowing the main nozzle 6 to be stored compactly and out of the way. That is, the housing portion 2 has a U-shape consisting of the motor case 3, the handle portion 4, and the battery attachment portion 5, and by positioning and holding the main nozzle 6 in the storage space 18 formed by the U-shaped housing portion 2, the main nozzle 6 can be stored compactly. In other words, the empty space in front of the handle portion 4 can be utilized to hold the main nozzle 6. Furthermore, by inserting and holding the protruding portion 14a of the battery attachment portion 5 into the base end portion 6b of the main nozzle 6 and holding the tip end portion 6a of the main nozzle 6 in the first groove portion 13a of the protruding portion 15 of the motor case 3, the main nozzle 6 can be held with sufficient holding force.

[0028] Furthermore, in the lower holding portion 14, the protrusion 14a of the battery mounting portion 5 is inserted into the proximal portion 6b of the main nozzle 6 to hold the proximal portion 6b of the main nozzle 6, and in the upper holding portion 13, the distal portion 6a of the main nozzle 6 is held by sandwiching the proximal portion 6a of the main nozzle 6 in the first groove 13a of the protruding portion 15 of the motor case 3, thereby improving ease of accommodating the main nozzle 6. That is, by inserting the protrusion 14a into the proximal portion 6b of the main nozzle 6 in the lower holding portion 14 and then using this proximal portion 6b as a base point to sandwich and remove the distal portion 6a from the first groove 13a of the protruding portion 15 in the upper holding portion 13, the main nozzle 6 can be easily attached to and detached from the first groove 13a. As a result, the main nozzle 6 can be attached to and detached from the holding portion of the housing 2 with a simple operation.

[0029] 7, the main nozzle 6 is held by the upper holding portion 13 and the lower holding portion 14 so as to be spaced apart from the trigger 9 in the axial direction C1. Furthermore, the main nozzle 6 is held by the upper holding portion 13 and the lower holding portion 14 so that a tip end portion 6a (end portion on the first housing portion side) of the main nozzle 6 is spaced apart from the handle portion 4 in the axial direction C1 compared to a base end portion 6b (end portion on the second housing portion side). Specifically, since the tip end portion 6a of the main nozzle 6 is thinner than the base end portion 6b, the tip end portion 6a is held so as to be positioned near the trigger 9, thereby achieving a state in which the trigger 9 and the main nozzle 6 are spaced apart as much as possible. In other words, as shown in FIG. 8, the distance L3 between the handle portion 4 on the motor case 3 side and the main nozzle 6 is longer than the distance L4 between the handle portion 4 on the battery mounting portion 5 side and the main nozzle 6 (L3>L4).

[0030] This makes it possible to operate the trigger 9 even when the main nozzle 6 is held, as shown in Fig. 8. In other words, the operability of the blower 1 is not impaired even when the main nozzle 6 is stored.

[0031] As shown in FIG. 7 , the total length L2 of the handle portion 4 and the trigger 9 in the axial direction C1 is 2.0 times or less the length L1 of the handle portion 4 in the extension direction E1 (L2≦L1×2). In other words, the handle portion 4 and the trigger 9 do not protrude forward more than necessary in the axial direction C1. Furthermore, the distance L5 from the rear end position of the handle portion 4 to the front end position of the protruding portion 15 in the axial direction C1 is 2.0 times or less the total length L2 of the handle portion 4 and the trigger 9 (L5≦L2×2). In other words, the protruding portion 15 does not protrude forward more than necessary in the axial direction C1. Therefore, the main nozzle 6 can be compactly accommodated directly below the protruding portion 15 of the motor case 3. Furthermore, while holding the handle portion 4 and operating the trigger 9, the operator can simply extend the finger that was operating the trigger 9 to hold the main nozzle 6 in the upper holding portion 13.

[0032] (Embodiment 2) In the second embodiment, a case will be described in which a sub-nozzle 16 is attached as a nozzle to the blower 1. As shown in Fig. 11, the sub-nozzle 16 is a nozzle portion in which the diameter G2 of the outer circumferential portion 16c including the tip-side portion 16a is smaller than the diameter G1 of the outer circumferential portion 16c of the main nozzle 6 shown in Fig. 6, and this illustrates a case in which a nozzle portion that is thinner overall than the main nozzle 6 is attached to the blower 1 for use. In the sub-nozzle 16, the base-end side portion (other-end side portion) 16b attached to the exhaust portion 12 of the motor case 3 also has an intake port 16d as a nozzle, and the tip-end side portion (one-end side portion) 16a located opposite the base-end side portion 16b has an exhaust port 16e as a nozzle.

[0033] A second groove 13b is provided at the tip of the protruding portion 15 of the motor case 3. In detail, the second groove 13b that opens upward and downward is provided at the tip of the protruding portion 15 as the upper holding portion 13, and as shown in Figures 12 and 13, by inserting the tip portion 16a of the sub-nozzle 16 into this second groove 13b, the tip portion 16a of the sub-nozzle 16 is held by the upper holding portion 13 of the protruding portion 15.

[0034] Meanwhile, on the battery mounting section 5 side, protrusion 14a of lower holding section 14 provided on battery mounting section 5 is inserted into intake port 16d of base end section 16b of sub-nozzle 16, thereby holding base end section 16b of sub-nozzle 16 by lower holding section 14. That is, in blower 1 of the second embodiment as well, since removed sub-nozzle 16 is held at two locations by two holding sections of housing section 2, sufficient holding force for holding sub-nozzle 16 can be ensured. This prevents sub-nozzle 16 from coming off during operation, improving the operability of blower 1.

[0035] Furthermore, in the blower 1 of embodiment 2, the sub-nozzle 16 is held by an upper holding portion 13 provided on the protruding portion 15 of the motor case 3 and a lower holding portion 14 provided on the battery mounting portion 5, so that the sub-nozzle 16 can be positioned and held in the storage space 18, which is the empty space directly below the protruding portion 15 of the motor case 3, and therefore the sub-nozzle 16 can be stored compactly so as not to get in the way.

[0036] As described in the first and second embodiments, upper holding portion 13 of blower 1 can hold multiple types (two types in this case) of nozzle portions with different outer diameters. This allows sub-nozzles 16 to be attached to exhaust portion 12 while main nozzle 6 is housed in housing space 18 directly below protruding portion 15 of motor case 3, allowing air to be supplied to small locations. In other words, even when thick main nozzle 6 is housed and held in housing space 18, a sufficient gap is ensured between trigger 9 and main nozzle 6 for operating trigger 9, allowing air to be discharged from sub-nozzle 16 by operating the trigger. This improves convenience of operation.

[0037] Next, a modified example of the embodiment will be described. The blower 21 of the modified example shown in FIGS. 14(a) and 14(b) is a work machine having a structure in which a nozzle holder is provided on the side of the motor case 3. Specifically, a front holder 22 is provided on the front side of the side of the motor case 3, and a rear holder 23 is provided on the rear side of the side of the motor case 3. That is, as shown in FIGS. 15(a) and 15(b), the main nozzle 6 removed from the exhaust section 12 of the motor case 3 can be held at two locations, the front holder 22 and the rear holder 23, on the side of the motor case 3. Therefore, in the blower 21 of the modified example, the removed main nozzle 6 is held at two locations by the two holders provided on the side of the motor case 3, ensuring sufficient holding force for holding the main nozzle 6. As a result, the main nozzle 6 can be prevented from coming off during work, improving the workability of the blower 21.

[0038] Furthermore, since the main nozzle 6 can be arranged and held in the vicinity of the motor case 3, the main nozzle 6 can be accommodated compactly so as not to get in the way.

[0039] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, in the above-described embodiment, the case where the types of nozzle parts that can be held by upper holding portion 13 are two types, i.e., a thick nozzle and a thin nozzle, has been described, but the types of nozzle parts that can be held by upper holding portion 13 may be three or more types. [Explanation of symbols]

[0040] 1...blower (work machine), 2...housing section, 3...motor case (first housing section), 4...handle section, 5...battery attachment section (second housing section), 6...main nozzle (nozzle section), 6a...tip side section (one end section, end section on the side of the first housing section), 6b...base side section (the other end section, end section on the side of the second housing section), 6c...periphery, 6d...intake port, 6e...exhaust port, 6f...protrusion, 7...battery pack, 8...control board, 9...trigger (operation section), 10...motor, 10a...fan, 10b...stator, 10c...rotor, 10d...inner wall, 10e...motor board, 11...intake section, 11a...mesh section, 12...exhaust section, 12a...groove section, 13...upper holding section (first holding section, holding section ), 13a...first groove portion, 13b...second groove portion, 14...lower holding portion (second holding portion, holding portion), 14a...protrusion portion, 15...protruding portion, 16...sub-nozzle (nozzle portion), 16a...tip side portion (one end portion, end portion on the side of the first housing portion), 16b...base side portion (the other end portion, end portion on the side of the second housing portion), 16c...outer periphery, 16d...intake port, 16e...exhaust port, 17...LED, 18...accommodation space, 19...operation space, 21...blower (work machine), 22...front holding portion, 23...rear holding portion, C1...axial direction, D1, D2...diameter, E1...extension direction, F1...air flow, G1, G2...diameter, L1...length of handle portion, L2...length of handle portion + trigger, L3, L4, L5...distance

Claims

1. A motor; a fan that rotates by the driving force of the motor and generates an airflow in an axial direction; a housing portion that accommodates the motor and the fan therein and has an exhaust portion on one side in the axial direction; a nozzle portion formed in a cylindrical shape and detachably attached to the exhaust portion; Equipped with The housing portion includes: a holding portion that holds the nozzle portion by supporting one end portion and the other end portion of the nozzle portion detached from the exhaust portion; a first housing portion that houses the motor and the fan and has the exhaust portion; a handle portion extending from the first housing portion along a direction intersecting the axial direction; a second housing portion connected to the handle portion so as to be located on the opposite side of the handle portion from the first housing portion, The holding portion includes a first holding portion provided in the first housing portion and a second holding portion provided in the second housing portion.

2. the first housing portion is provided so as to protrude more to one side in the axial direction than to the other side with respect to the handle portion, the second housing portion is provided so as to protrude more to one side in the axial direction than to the other side with respect to the handle portion, The work machine according to claim 1 , wherein the first holding portion and the second holding portion are disposed on one side of the handle portion in the axial direction.

3. The nozzle portion is formed so that the diameter of the other end portion is larger than that of the one end portion, The work machine according to claim 1 or 2, wherein the first holding portion holds the one end portion of the nozzle portion.

4. the first holding portion holds the nozzle portion by clamping an outer periphery of the one end side portion of the nozzle portion, The work machine according to claim 3 , wherein the second holding portion has a protruding portion that protrudes toward the first housing portion and holds the nozzle portion by inserting the protruding portion into the nozzle portion.

5. The work machine according to claim 4 , wherein the first holding portion is capable of holding a plurality of types of nozzle portions having different diameters of the outer periphery.

6. the handle portion has an operating portion provided on the first housing portion side so as to protrude toward one side in the axial direction, 6. A work machine according to claim 1, wherein the nozzle portion is held by the holding portion so that the end of the nozzle portion on the side of the first housing portion is spaced apart from the handle portion in the axial direction compared to the end of the nozzle portion on the side of the second housing portion.

7. The work machine according to claim 6 , wherein the nozzle portion is held by the holding portion so as to be spaced apart from the operating portion in the axial direction.

8. The work machine according to claim 1 , further comprising a battery pack detachably attached to the second housing portion and supplying power to the motor.

9. 8. The work machine according to claim 6 or 7, wherein the distance from one end of the first holding portion to the other end of the handle portion in the axial direction is 2.0 times or less the sum of the lengths of the handle portion and the operating portion.

Citation Information

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