JP2024008313A

JP2024008313A - Working machine

Info

Publication number: JP2024008313A
Application number: JP2022110077A
Authority: JP
Inventors: 雅則岡田; Masanori Okada; 新悟小杉; Shingo Kosugi; 武史谷口; Takeshi Taniguchi
Original assignee: Koki Holdings Co Ltd
Current assignee: Koki Holdings Co Ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2024-01-19

Abstract

PROBLEM TO BE SOLVED: To provide a working machine that improves workability.

SOLUTION: A working machine 1 comprises a motor 92, a fan 93 to be operated by receiving a driving force of the motor 92, a main body part comprising the motor 92 and the fan 93, a duct collection case 30 covering at least a portion of a surface of the main body part, and a drawing part 40 detachably fitted between the main body part and the dust collection case 30. The main body part comprises a claw part 23 engaged with the drawing part 40. The drawing part 40 comprises a latch engagement part 48 engaged with the claw part 23, and a claw part 47 engaged with the duct collection case 30. The duct collection case 30 comprises a latch engagement part 35 engaged with the claw part 47.

SELECTED DRAWING: Figure 2

Description

本発明は、クリーナ等の作業機に関する。 The present invention relates to working machines such as cleaners.

下記特許文献１は、本体部に対して集塵ケースが装着される構造の作業機を開示する。 Patent Document 1 listed below discloses a working machine having a structure in which a dust collection case is attached to a main body.

国際公開第２０２１／１０６４９３号International Publication No. 2021/106493

特許文献１のような作業機において、集塵ケース内の塵埃を掻き出す掻出部材や、本体部に設けられるフィルタの除塵を行う除塵機構などの別体部材を設ける要望がある。別体部材を係止するために本体部や集塵ケースの係合部が多くなると、係合部の設置スペースを確保するために製品が大型化し、作業性が損なわれる恐れがある。 In a working machine such as that disclosed in Patent Document 1, there is a demand for providing separate members such as a scraping member that scrapes out dust in a dust collection case and a dust removal mechanism that removes dust from a filter provided in a main body. If the number of engaging parts of the main body or dust collection case increases in order to lock separate members, the product will become larger in order to secure installation space for the engaging parts, and there is a risk that workability will be impaired.

本発明の目的は、作業性を向上した作業機を提供することである。 An object of the present invention is to provide a working machine with improved workability.

本発明のある態様は、作業機である。この作業機は、
モータと、
前記モータの駆動力を受けて動作する動作部と、
前記モータ及び前記動作部を有する本体部と、
前記本体部の表面の少なくとも一部を覆うカバー部と、
前記本体部と前記カバー部との間に着脱可能に装着される別体部材と、を有し、
前記本体部は、前記別体部材に係合する第１係合部を有し、
前記別体部材は、前記第１係合部に係合する第２係合部及び、前記カバー部に係合する第３係合部を有し、
前記カバー部は、前記第３係合部に係合する第４係合部を有する。 An embodiment of the present invention is a working machine. This work machine is
motor and
an operating section that operates in response to the driving force of the motor;
a main body having the motor and the operating section;
a cover portion that covers at least a portion of the surface of the main body portion;
a separate member detachably installed between the main body part and the cover part,
The main body portion has a first engaging portion that engages with the separate member,
The separate member has a second engaging part that engages with the first engaging part and a third engaging part that engages with the cover part,
The cover part has a fourth engaging part that engages with the third engaging part.

本発明は「電動作業機」や「電動工具」、「電気機器」等と表現されてもよく、そのように表現されたものも本発明の態様として有効である。 The present invention may be expressed as an "electric working machine," "power tool," "electrical equipment," etc., and such expressions are also effective as aspects of the present invention.

本発明によれば、作業性を向上した作業機を提供することができる。 According to the present invention, it is possible to provide a working machine with improved workability.

(Ａ)は、本発明の実施の形態１に係る作業機１の左側面図。(Ｂ)は、作業機１の底面図。(A) is a left side view of work machine 1 according to Embodiment 1 of the present invention. (B) is a bottom view of the working machine 1. (Ａ)は、図１(Ｂ)のＡ－Ａ断面図。(Ｂ)は、図２(Ａ)のＢ部拡大図。(Ｃ)は、図２(Ａ)のＣ部拡大図。(A) is a sectional view taken along line AA in FIG. 1(B). (B) is an enlarged view of part B in FIG. 2(A). (C) is an enlarged view of part C in FIG. 2(A). (Ａ)は、図２(Ａ)の前部拡大図。(Ｂ)は、図３(Ａ)において覆い部５１が変形して流入口３１が開いた状態の図。(A) is an enlarged front view of FIG. 2(A). (B) is a diagram showing a state in which the cover portion 51 is deformed and the inlet 31 is opened in FIG. 3(A). 作業機１の斜視図。FIG. 作業機１の分解斜視図であって、集塵ケース３０及び引出部４０を本体ハウジング１０から分離した状態の斜視図。FIG. 2 is an exploded perspective view of the working machine 1, with the dust collection case 30 and the drawer section 40 separated from the main body housing 10; 集塵ケース３０及び引出部４０の分離状態の斜視図。FIG. 3 is a perspective view of the dust collection case 30 and the drawer section 40 in a separated state. 作業機１のフィルタ装置６０の分解斜視図。FIG. 3 is an exploded perspective view of a filter device 60 of the working machine 1. 本発明の実施の形態２に係る作業機２の要部分解斜視図。FIG. 2 is an exploded perspective view of main parts of a working machine 2 according to a second embodiment of the present invention. (Ａ)は、作業機２の要部断面図。(Ｂ)は、図９(Ａ)のＢ１部拡大図。(Ｃ)は、図９(Ａ)のＣ１部拡大図。(A) is a sectional view of the main parts of the working machine 2. (B) is an enlarged view of part B1 of FIG. 9(A). (C) is an enlarged view of part C1 in FIG. 9(A). 本発明の実施の形態３に係る作業機３の要部分解斜視図。FIG. 3 is an exploded perspective view of main parts of a working machine 3 according to Embodiment 3 of the present invention.

（実施の形態１）
図１～図７は、本発明の実施の形態１に係る作業機１に関する。作業機１は電池パック１９の電力で動作するコードレスタイプのクリーナ（集塵装置）である。 (Embodiment 1)
1 to 7 relate to a working machine 1 according to Embodiment 1 of the present invention. The working machine 1 is a cordless type cleaner (dust collector) that operates using electric power from a battery pack 19.

図１(Ａ),(Ｂ)により、作業機１の互いに直交する前後、上下、左右方向を定義する。前後方向は、モータ９２の駆動軸９２ａと平行な方向である。前後方向は、第１方向に対応する。前方側は、第１方向の一方側に対応する。後方側は、第１方向の他方側に対応する。左右方向は、駆動軸９２ａとハンドル部１２の中心軸線とが存在する仮想平面と垂直な方向である。 1(A) and (B), the mutually orthogonal front-rear, up-down, and left-right directions of the working machine 1 are defined. The front-rear direction is a direction parallel to the drive shaft 92a of the motor 92. The front-back direction corresponds to the first direction. The front side corresponds to one side in the first direction. The rear side corresponds to the other side in the first direction. The left-right direction is a direction perpendicular to a virtual plane in which the drive shaft 92a and the central axis of the handle portion 12 exist.

作業機１は、本体ハウジング１０を有する。本体ハウジング１０は、例えば左右二分割の樹脂成形体をネジ止め等により互いに固定、一体化したものである。本体ハウジング１０は、モータ収容部１１、ハンドル部１２、電池パック装着部１３を含む。 The work machine 1 has a main body housing 10. The main body housing 10 is, for example, a resin molded body divided into left and right halves, which are fixed to each other and integrated by screws or the like. The main body housing 10 includes a motor housing section 11 , a handle section 12 , and a battery pack mounting section 13 .

モータ収容部１１は、中心軸が前後方向と平行な筒形状、例えば略円筒形状を成す。図２(Ａ)に示すように、モータ収容部１１は内部に、駆動部としてのモータ９２、及び動作部としてのファン９３を収容する。 The motor accommodating portion 11 has a cylindrical shape, for example, a substantially cylindrical shape, with a central axis parallel to the front-rear direction. As shown in FIG. 2(A), the motor housing section 11 houses therein a motor 92 as a drive section and a fan 93 as an operating section.

図３(Ａ)に示すように、モータ収容部１１は、ファン９３の前方に吸気口１４を有する。吸気口１４は、ファン９３が発生する空気流の入口となる。図１(Ａ),(Ｂ)に示すように、モータ収容部１１は、左右両側面にそれぞれ複数の排気口１５を有する。排気口１５は、ファン９３の発生する空気流の出口となる。 As shown in FIG. 3(A), the motor accommodating portion 11 has an intake port 14 in front of the fan 93. As shown in FIG. The intake port 14 serves as an inlet for the airflow generated by the fan 93. As shown in FIGS. 1(A) and 1(B), the motor accommodating portion 11 has a plurality of exhaust ports 15 on both left and right sides. The exhaust port 15 serves as an outlet for the airflow generated by the fan 93.

ハンドル部１２は、モータ収容部１１の後端上部の左右方向中央部から、前後方向と略平行に後方に延びる。 The handle portion 12 extends rearward from the left-right center portion of the upper rear end of the motor housing portion 11 substantially parallel to the front-rear direction.

電池パック装着部１３は、ハンドル部１２の後端に接続される。電池パック装着部１３は、電池パック１９を着脱可能に装着する。電池パック１９は、後上方向から前下方向に斜めにスライドさせて電池パック装着部１３に装着できる。電池パック装着部１３に装着された電池パック１９の電力によりモータ９２が駆動される。 The battery pack attachment part 13 is connected to the rear end of the handle part 12. The battery pack mounting portion 13 removably mounts the battery pack 19 thereon. The battery pack 19 can be attached to the battery pack attachment part 13 by sliding it diagonally from the upper rear direction to the lower front direction. The motor 92 is driven by the power of the battery pack 19 mounted on the battery pack mounting section 13 .

作業機１は、モータ収容部１１の上部と下部にそれぞれラッチ部材２１を有する。ラッチ部材２１は、集塵ケース３０及び引出部４０を本体ハウジング１０に係止するための部材である。ラッチ部材２１は、図２(Ｂ),(Ｃ)に示すように、バネ２４によってモータ収容部１１の径方向外側に突出する方向に付勢される。 The working machine 1 has latch members 21 at the upper and lower parts of the motor accommodating portion 11, respectively. The latch member 21 is a member for locking the dust collection case 30 and the drawer part 40 to the main body housing 10. As shown in FIGS. 2(B) and 2(C), the latch member 21 is biased by a spring 24 in a direction in which it projects outward in the radial direction of the motor accommodating portion 11.

図２(Ｂ),(Ｃ)に示すように、ラッチ部材２１は、押圧部２２及び爪部２３を有する。押圧部２２は、作業者がラッチ部材２１による係止を解除するために押す部分である。図２(Ｂ)に示すように、上側のラッチ部材２１の爪部２３は、上方（集塵ケース３０の径方向外側）に立設された突起であって第５係合部の例示であり、集塵ケース３０のラッチ係合部３６（第６係合部）に引っ掛かってラッチ係合部３６と係合し、集塵ケース３０を係止する。下側のラッチ部材２１の爪部２３（突起部）は、下方（集塵ケース３０の径方向外側）に立設された突起であって第１係合部の例示であり、引出部４０のラッチ係合部４８（第２係合部）に引っ掛かって（挿入されて）ラッチ係合部４８と係合し、引出部４０を係止する。 As shown in FIGS. 2(B) and 2(C), the latch member 21 has a pressing portion 22 and a claw portion 23. The pressing portion 22 is a portion that an operator presses to release the latch member 21 from being locked. As shown in FIG. 2(B), the claw portion 23 of the upper latch member 21 is a protrusion that is provided upwardly (on the outside in the radial direction of the dust collection case 30) and is an example of a fifth engaging portion. , is caught on the latch engaging portion 36 (sixth engaging portion) of the dust collecting case 30 and is engaged with the latch engaging portion 36, thereby locking the dust collecting case 30. The claw portion 23 (protrusion) of the lower latch member 21 is a protrusion provided downward (on the outside in the radial direction of the dust collection case 30) and is an example of a first engaging portion, and is an example of a first engaging portion. It is caught on (inserted into) the latch engaging portion 48 (second engaging portion) and engaged with the latch engaging portion 48, thereby locking the drawer portion 40.

図１及び図２(Ａ)に示すように、作業機１は、ハンドル部１２の上部に、スイッチ部２５を有する。図２(Ａ)に示すように、スイッチ部２５には、電源ボタン２６、パワー上昇ボタン２７、パワー低下ボタン２８が設けられる。電源ボタン２６は、押す度にモータ９２の駆動、停止が切り替わる。パワー上昇ボタン２７は、押す度にモータ９２の回転速度が段階的に高まる。パワー低下ボタン２８は、押す度にモータ９２の回転速度が段階的に低下する。モータ９２の回転速度の段階数は、例えば３段階であるが、２段階でも４段階以上でもよい。 As shown in FIGS. 1 and 2(A), the working machine 1 has a switch section 25 on the upper part of the handle section 12. As shown in FIGS. As shown in FIG. 2(A), the switch section 25 is provided with a power button 26, a power up button 27, and a power down button 28. Each time the power button 26 is pressed, the motor 92 is switched between driving and stopping. Each time the power increase button 27 is pressed, the rotational speed of the motor 92 increases step by step. Each time the power reduction button 28 is pressed, the rotational speed of the motor 92 is reduced in stages. The number of stages of the rotational speed of the motor 92 is, for example, three stages, but may be two stages or four stages or more.

作業機１は、カバー部としての集塵ケース３０を有する。集塵ケース３０は、例えば単一の樹脂成形体である。集塵ケース３０は、本体ハウジング１０の前方を覆い、またフィルタ装置６０の周囲及び前方を覆う。集塵ケース３０は、ダストケースとも称される。図３(Ａ)に示すように、集塵ケース３０は、流入口３１、集塵室３２、流出口３４を有する。 The work machine 1 has a dust collection case 30 as a cover part. The dust collection case 30 is, for example, a single resin molded body. The dust collection case 30 covers the front of the main body housing 10 and also covers the periphery and front of the filter device 60. The dust collection case 30 is also called a dust case. As shown in FIG. 3(A), the dust collection case 30 has an inlet 31, a dust collection chamber 32, and an outlet 34.

流入口３１は、中心軸が前後方向平行な筒形状を成すノズル部であって、集塵ケース３０の前端部（前方側）に設けられる。流入口３１は、吸込口や吸込部と表記されてもよい。流入口３１は、ファン９３の発生する空気流が外部から集塵室３２内へ流入する入口となる。流入口３１は、流出口３４よりも前側に位置する。 The inflow port 31 is a nozzle portion having a cylindrical shape whose central axis is parallel to the front-rear direction, and is provided at the front end portion (front side) of the dust collection case 30. The inflow port 31 may be described as a suction port or a suction portion. The inlet 31 serves as an inlet through which the airflow generated by the fan 93 flows into the dust collection chamber 32 from the outside. The inlet 31 is located in front of the outlet 34.

集塵室３２は、集塵ケース３０の内部に形成される。集塵室３２は、筒形状を成し、流入口３１の後方に連なる。集塵室３２の外周面及び内周面の側部と上部は、前方に行くほど小径となる形状（テーパー状）となっている。すなわち、集塵室３２は、前方側が先細となる筒形状を有する。集塵室３２は、流入口３１よりも拡径されている。集塵室３２は、前方視で流入口３１よりも大きい内寸を有する。集塵室３２は、流入口３１と流出口３４との間に位置する。集塵室３２は、流入口３１から空気流とともに流入する塵埃を内部に集塵する（溜める）。 The dust collection chamber 32 is formed inside the dust collection case 30. The dust collection chamber 32 has a cylindrical shape and continues behind the inlet 31 . The side and upper portions of the outer circumferential surface and inner circumferential surface of the dust collection chamber 32 have a shape (tapered shape) that becomes smaller in diameter toward the front. That is, the dust collection chamber 32 has a cylindrical shape tapered on the front side. The dust collection chamber 32 has a larger diameter than the inlet 31 . The dust collection chamber 32 has an inner dimension larger than the inlet 31 when viewed from the front. The dust collection chamber 32 is located between the inlet 31 and the outlet 34. The dust collection chamber 32 collects (stores) dust that flows in from the inflow port 31 together with the air flow.

流出口３４は、集塵ケース３０の後部（後方側）に設けられ、本体ハウジング１０の吸気口１４と接続する（連通する）。流出口３４は、ファン９３の発生する空気流が集塵室３２内から本体ハウジング１０内へと流出する（ファン９３に吸い込まれる）通路部である。 The outflow port 34 is provided at the rear (rear side) of the dust collection case 30 and connects (communicates) with the intake port 14 of the main body housing 10 . The outflow port 34 is a passage through which the airflow generated by the fan 93 flows out from inside the dust collection chamber 32 into the main body housing 10 (is sucked into the fan 93).

集塵ケース３０は、集塵室３２の外壁部を後方に延長した延長部３３を有する。延長部３３は、筒形状を成す。図２(Ｂ),(Ｃ)に示すように、集塵ケース３０は、延長部３３の下部と上部にラッチ係合部３５、３６を有する。ラッチ係合部３５は、第４係合部の例示であり、引出部４０の爪部４７（第３係合部）を引っ掛ける（挿入する）部分である。ラッチ係合部３６は、上側のラッチ部材２１の爪部２３を引っ掛ける部分である。ラッチ係合部３５は、集塵ケース３０の径方向に、集塵ケース３０の延長部３３を貫通する貫通孔（開口）であり、ラッチ係合部３６は延長部３３の内面の凹部（溝部）である。 The dust collection case 30 has an extension 33 that extends the outer wall of the dust collection chamber 32 rearward. The extension portion 33 has a cylindrical shape. As shown in FIGS. 2(B) and 2(C), the dust collection case 30 has latch engaging portions 35 and 36 at the lower and upper portions of the extension portion 33. As shown in FIGS. The latch engaging portion 35 is an example of a fourth engaging portion, and is a portion on which the claw portion 47 (third engaging portion) of the drawer portion 40 is hooked (inserted). The latch engaging portion 36 is a portion on which the claw portion 23 of the upper latch member 21 is hooked. The latch engagement part 35 is a through hole (opening) that penetrates the extension part 33 of the dust collection case 30 in the radial direction of the dust collection case 30, and the latch engagement part 36 is a recess (groove) on the inner surface of the extension part 33. ).

引出部４０を取り付けた集塵ケース３０を本体ハウジング１０に対して後方にスライドさせる過程（図５の状態から図４の状態に遷移する過程）で、ラッチ係合部３５に引出部４０の爪部４７が引っ掛かる（係合する）と共にラッチ係合部３６に上側のラッチ部材２１の爪部２３が引っ掛かり（係合し）、集塵ケース３０及び引出部４０が本体ハウジング１０に係止（固定）される。 In the process of sliding the dust collection case 30 with the drawer part 40 attached backward with respect to the main body housing 10 (the process of transitioning from the state shown in FIG. 5 to the state shown in FIG. The part 47 is caught (engaged), and the claw part 23 of the upper latch member 21 is caught (engaged) by the latch engaging part 36, and the dust collection case 30 and the drawer part 40 are caught (fixed) on the main body housing 10. ) to be done.

作業機１は、引出部４０を有する。引出部４０は、集塵室３２の内部に配置される。引出部４０は、集塵ケース３０に対し後方に相対移動することで集塵室３２内の塵埃を引き出す（掻き出す）別体部材である。引出部４０は、スクレーパーとも称される。引出部４０は、フィルタ装置６０よりも前方側に延在する。また、引出部４０の前端部は、流入口３１の後部開口の周囲に当接する。 The work machine 1 has a drawer section 40. The drawer section 40 is arranged inside the dust collection chamber 32. The drawer part 40 is a separate member that pulls out (rakes out) dust in the dust collection chamber 32 by moving backward relative to the dust collection case 30. The drawer section 40 is also called a scraper. The drawer portion 40 extends further forward than the filter device 60 . Further, the front end portion of the drawer portion 40 abuts around the rear opening of the inlet 31 .

図６に示すように、引出部４０は、例えば樹脂成形体からなるフレーム部分として、基部４１、柱部４２、中間連結部４３、前端連結部４４を有する。 As shown in FIG. 6, the drawer portion 40 has a base portion 41, a column portion 42, an intermediate connecting portion 43, and a front end connecting portion 44 as a frame portion made of, for example, a resin molded body.

基部４１は、環状部であって、外縁部が集塵ケース３０の内周面に沿う。基部４１の前面は、集塵室３２の内面であって前方に臨む内面を成す。すなわち、基部４１は、集塵ケース３０と共に集塵部を構成する。図３(Ａ)に示すように、基部４１の下部は、流入口３１と前後方向視において重なる（上下方向及び左右方向における存在範囲が互いに重なる）配置であり、前後方向と交差する方向に延びる壁部を成す。基部４１の背面は、図２(Ａ)に示すように本体ハウジング１０の前端部と係合（当接）し、前方に向かって押し付けられる。すなわち、引出部４０は、後端部が本体ハウジング１０と当接し、集塵室３２に向かって前方側に押し付けられる。 The base portion 41 is an annular portion with an outer edge extending along the inner circumferential surface of the dust collection case 30 . The front surface of the base 41 forms the inner surface of the dust collection chamber 32 and faces the front. That is, the base 41 constitutes a dust collecting section together with the dust collecting case 30. As shown in FIG. 3(A), the lower part of the base 41 is arranged to overlap with the inlet 31 in the front-rear direction (existence ranges in the up-down direction and left-right direction overlap with each other), and extend in a direction intersecting the front-back direction. Forms the wall. The back surface of the base 41 engages with (contacts) the front end of the main body housing 10, as shown in FIG. 2(A), and is pressed forward. That is, the rear end of the drawer portion 40 contacts the main body housing 10 and is pressed forward toward the dust collection chamber 32 .

２本の柱部４２は、それぞれ基部４１から前方に延びる。集塵室３２の中心軸線の真下を中心とする約１２０度の範囲には柱部４２が存在しない。柱部４２のうち１本は、集塵室３２の中心軸線の真上に位置し、前部に幅広部４２ａを有する。幅広部４２ａは、左右方向と垂直な平面部であり、幅広部４２の後部と比較して上下方向の幅が大きい部分である。幅広部４２ａは、第１当接部４２ｂ、第２当接部４２ｃ、第３当接部４２ｄを有する。 The two pillar parts 42 each extend forward from the base part 41. No columnar portion 42 exists within a range of approximately 120 degrees centered directly below the central axis of the dust collection chamber 32 . One of the pillar parts 42 is located directly above the central axis of the dust collection chamber 32, and has a wide part 42a in the front part. The wide portion 42a is a flat portion perpendicular to the left-right direction, and has a larger width in the vertical direction than the rear portion of the wide portion 42. The wide portion 42a has a first contact portion 42b, a second contact portion 42c, and a third contact portion 42d.

第１当接部４２ｂは、幅広部４２ａの上縁部（上端部）であって前方に行くと下るように傾斜する。第１当接部４２ｂは、ラッチ係合部４８と離間した位置において、集塵室３２の内面（内壁）のうち前方に行くと内側へ向かうように傾斜した部分と当接する。これにより引出部４０の前方への移動が規制される。 The first contact portion 42b is an upper edge portion (upper end portion) of the wide portion 42a, and is sloped downward as it goes forward. The first contact portion 42b comes into contact with a portion of the inner surface (inner wall) of the dust collection chamber 32 that is inclined inward when going forward, at a position separated from the latch engagement portion 48. This restricts forward movement of the drawer portion 40.

第２当接部４２ｃは、幅広部４２の後方に臨む端部であって、フレーム部材６２に支持されたフィルタ６１の前端部と当接する。これによりフィルタ６１及びフレーム部材６２の前方への移動が規制される。 The second contact portion 42c is an end portion of the wide portion 42 facing the rear, and comes into contact with a front end portion of the filter 61 supported by the frame member 62. This restricts forward movement of the filter 61 and frame member 62.

第３当接部４２ｄは、幅広部４２の前端部を下方に延長した部分であり、規制部５０の覆い部５１の背面上部に当接する。 The third contact portion 42d is a portion obtained by extending the front end portion of the wide portion 42 downward, and contacts the upper back surface of the cover portion 51 of the restriction portion 50.

中間連結部４３は、２本の柱部４２の長さ方向の中間部同士を集塵室３２の中心軸線周りに略円弧状に連結すると共に、上側の柱部４２の長さ方向の中間部と基部４１とを連結する。中間連結部４３は、集塵室３２の中心軸線の真下を中心とする約１２０度の範囲には存在しない。 The intermediate connecting portion 43 connects the longitudinal intermediate portions of the two columnar portions 42 to each other in a substantially arc shape around the central axis of the dust collection chamber 32, and connects the longitudinal intermediate portions of the upper columnar portion 42 to each other in a substantially arc shape. and the base 41. The intermediate connecting portion 43 does not exist within a range of approximately 120 degrees centered directly below the central axis of the dust collection chamber 32 .

前端連結部４４は、前後方向と垂直な面状部であり、２本の柱部４２の前端部同士を流入口３１の中心軸線周りに略円状に連結する。引出部４０は、前端連結部４４に接続する保持部４５を有する。保持部４５は、集塵室３２の中心軸線の真上に位置する。保持部４５は、中心軸線が左右方向と平行な筒形状を成す。保持部４５は、規制部５０の取付部５２を保持する部分である。 The front end connecting part 44 is a planar part perpendicular to the front-rear direction, and connects the front ends of the two pillar parts 42 to each other in a substantially circular shape around the central axis of the inlet 31. The drawer section 40 has a holding section 45 connected to the front end connecting section 44 . The holding portion 45 is located directly above the central axis of the dust collection chamber 32 . The holding portion 45 has a cylindrical shape with a central axis parallel to the left-right direction. The holding part 45 is a part that holds the attachment part 52 of the regulating part 50.

引出部４０は、規制部５０を有する。規制部５０は、ゴム等の弾性体からなる。規制部５０は、流入口３１の後端部の後方に隣接して配置される。すなわち、引出部４０は、前端部が流入口３１の後端部と接触する。 The drawer section 40 has a regulating section 50 . The regulating portion 50 is made of an elastic body such as rubber. The regulating portion 50 is disposed adjacent to the rear end of the inlet 31 . That is, the front end of the pull-out portion 40 contacts the rear end of the inflow port 31 .

規制部５０は、塵埃の逆流防止用の弁部（バルブ）である。規制部５０は、流入口３１を介して集塵ケース３０の外部から集塵ケース３０の内部（集塵室３２の内部）へ流れる空気流を許容し、流入口３１を介して集塵ケース３０の内部（集塵室３２の内部）から集塵ケース３０の外部への塵埃の流出を規制する。 The regulating portion 50 is a valve for preventing backflow of dust. The regulating part 50 allows airflow to flow from the outside of the dust collection case 30 to the inside of the dust collection case 30 (inside the dust collection chamber 32 ) through the inflow port 31 , and allows the airflow to flow into the dust collection case 30 through the inflow port 31 . The outflow of dust from the inside of the dust collection chamber 32 (inside the dust collection chamber 32) to the outside of the dust collection case 30 is restricted.

規制部５０は、覆い部５１及び取付部５２を有する。覆い部５１は、流入口３１を閉塞するように流入口３１に内側から当接する（流入口３１の後方側端部に当接する）板状部である。この当接力は、前述のように基部４１の背面が本体ハウジング１０によって前方に押し付けられることで付与される。取付部５２は、覆い部５１の上端部に接続され、保持部４５の内部に保持される。規制部５０は、取付部５２を右方から保持部４５に嵌め込んでいくことで保持部４５に装着できる。 The regulating part 50 has a cover part 51 and a mounting part 52. The cover portion 51 is a plate-shaped portion that abuts the inlet 31 from the inside so as to close the inlet 31 (abuts the rear end of the inlet 31). This contact force is applied by the back surface of the base portion 41 being pressed forward by the main body housing 10 as described above. The attachment part 52 is connected to the upper end of the cover part 51 and is held inside the holding part 45. The regulating portion 50 can be attached to the holding portion 45 by fitting the attachment portion 52 into the holding portion 45 from the right side.

覆い部５１は、流入口３１を介して集塵ケース３０の外部から集塵ケース３０の内部（集塵室３２の内部）へ流れる空気流によって、第３当接部４２ｄの下端部との接触部を支点として図３(Ｂ)に示すように揺動（変形）することで下側が流入口３１から離間可能である。覆い部５１は、前面が流入口３１の周囲と接触するため、前方には揺動しない（揺動不能である）。 The cover portion 51 is brought into contact with the lower end portion of the third contact portion 42d by the airflow flowing from the outside of the dust collection case 30 to the inside of the dust collection case 30 (inside the dust collection chamber 32) through the inflow port 31. The lower side can be separated from the inlet 31 by swinging (deforming) about the lower part as a fulcrum as shown in FIG. 3(B). Since the front surface of the cover portion 51 contacts the periphery of the inlet 31, the cover portion 51 does not swing forward (it cannot swing).

図６に示すように、引出部４０は、基部４１の下部から後方に延出する延長部４６を有する。延長部４６は、把手部４９よりも前の部分において、本体ハウジング１０のモータ収容部１１の外面と、集塵ケース３０の延長部３３の内面と、に上下方向から挟み込まれる（挟持される）。延長部４６は、第３係合部としての爪部４７（突起部）、第２係合部としてのラッチ係合部４８、延出部としての把手部４９を有する。 As shown in FIG. 6, the drawer portion 40 has an extension portion 46 extending rearward from the lower portion of the base portion 41. As shown in FIG. The extension part 46 is sandwiched between the outer surface of the motor accommodating part 11 of the main body housing 10 and the inner surface of the extension part 33 of the dust collection case 30 from the vertical direction at a portion in front of the handle part 49. . The extension part 46 has a claw part 47 (projection part) as a third engaging part, a latch engaging part 48 as a second engaging part, and a handle part 49 as an extending part.

爪部４７は、延長部４６の下面から下方（集塵ケース３０の径方向外側）に立設された突起であり、集塵ケース３０の延長部３３のラッチ係合部３５に引っ掛かる（挿入される）ことでラッチ係合部３５と係合する。これにより集塵ケース３０に対する引出部４０の後方への移動が規制される。 The claw portion 47 is a protrusion that stands downward from the lower surface of the extension portion 46 (on the outside in the radial direction of the dust collection case 30), and is caught on the latch engagement portion 35 of the extension portion 33 of the dust collection case 30 (not inserted). ), thereby engaging with the latch engaging portion 35. This restricts rearward movement of the drawer portion 40 with respect to the dust collection case 30.

ラッチ係合部４８は、集塵ケース３０の径方向（上下方向）に延長部４６を貫通する貫通孔であり、下側のラッチ部材２１の爪部２３が引っ掛かる。これにより、本体ハウジング１０に対する集塵ケース３０及び引出部４０の前方への移動が規制される。貫通孔４８は、引出部４０を集塵ケース３０に取り付けた状態では、集塵ケース３０の延長部３３に覆われて見えない。 The latch engagement part 48 is a through hole that penetrates the extension part 46 in the radial direction (vertical direction) of the dust collection case 30, and the claw part 23 of the lower latch member 21 is caught therein. This restricts forward movement of the dust collection case 30 and the drawer portion 40 with respect to the main body housing 10. The through hole 48 is covered by the extension part 33 of the dust collection case 30 and is not visible when the drawer part 40 is attached to the dust collection case 30.

把手部４９は、集塵ケース３０の後端部から後方側に延出する。把手部４９は、作業者が爪部４７とラッチ係合部３５との係合を解除するために押す部分である。把手部４９を押しながら引出部４０を集塵ケース３０に対して後方に相対移動することで、図６に示すように引出部４０を集塵ケース３０から取り出せる。 The handle portion 49 extends rearward from the rear end of the dust collection case 30. The handle portion 49 is a portion that an operator presses to release the engagement between the claw portion 47 and the latch engaging portion 35 . By moving the drawer part 40 backward relative to the dust collection case 30 while pushing the handle part 49, the drawer part 40 can be taken out from the dust collection case 30 as shown in FIG.

図６に示すように、引出部４０は、除塵部としての除塵ブレード５６を有する。除塵ブレード５６は、例えば一体成形により基部４１に設けられ、基部４１から径方向内側に延びる。ここでは、９つの除塵ブレード５６が前方視でフィルタ６１の外形に沿って欠円状に配列される。「欠円」は、円の一部を切り欠いた図形であり、円弧と、当該円弧の両端部を渡す弦と、からなる。除塵ブレード５６は、本体ハウジング１０から集塵ケース３０及び引出部４０が前方に取り出される（取り外される）際にフィルタ６１の外周面を前方に摺動することでフィルタ６１の外周面に堆積（付着）した塵埃を除去する。 As shown in FIG. 6, the drawer section 40 has a dust removal blade 56 as a dust removal section. The dust removal blade 56 is provided on the base 41 by integral molding, for example, and extends radially inward from the base 41. Here, nine dust removal blades 56 are arranged in an elliptical shape along the outer shape of the filter 61 when viewed from the front. A "missing circle" is a shape obtained by cutting out a part of a circle, and is made up of a circular arc and a chord that spans both ends of the circular arc. The dust removal blade 56 slides forward on the outer circumferential surface of the filter 61 when the dust collection case 30 and the drawer part 40 are taken out (removed) forward from the main body housing 10, thereby removing deposits (adhesion) on the outer circumferential surface of the filter 61. ) to remove dust.

作業機１は、フィルタ装置６０を有する。フィルタ装置６０は、流入口３１と流出口３４との間に位置するように集塵室３２の内部に配置され、流入口３１から流出口３４へ流れる空気流に含まれる塵埃を捕集する。フィルタ装置６０は、本体ハウジング１０に取り付けられる。本体ハウジング１０及びその内部構成、並びにフィルタ装置６０は、作業機１の本体部を構成する。 The work machine 1 has a filter device 60. The filter device 60 is arranged inside the dust collection chamber 32 so as to be located between the inlet 31 and the outlet 34, and collects dust contained in the airflow flowing from the inlet 31 to the outlet 34. Filter device 60 is attached to main body housing 10 . The main body housing 10, its internal structure, and the filter device 60 constitute the main body of the working machine 1.

フィルタ装置６０は、フィルタ６１を有する。フィルタ６１は、前端が閉鎖され、後端に開口を有する筒状（袋状）である。フィルタ６１の後端の開口は、集塵ケース３０の流出口３４と接続する。フィルタ６１は、外部から内部へ通過する空気流から塵埃を分離する（捕集する）。 Filter device 60 has a filter 61 . The filter 61 has a cylindrical shape (bag shape) with a closed front end and an opening at the rear end. An opening at the rear end of the filter 61 is connected to the outlet 34 of the dust collection case 30. The filter 61 separates (collects) dust from the air flow passing from the outside to the inside.

図７に示すように、フィルタ装置６０は、フレーム部材６２を有する。フレーム部材６２は、例えば樹脂成形体である。フレーム部材６２は、フィルタ６１を前端部が閉塞されて後端部に開口が位置する欠円筒状であって、前後方向視において円形の下方側が切り欠かれた断面形状の欠円筒状に支持する。「欠円筒」は、断面が欠円状の筒である。これにより、フィルタ６１の上側は、前後方向視で円弧状の断面を有する湾曲形状を有し、フィルタ６１の下側は平坦な板形状を有する。 As shown in FIG. 7, filter device 60 includes a frame member 62. As shown in FIG. The frame member 62 is, for example, a resin molded body. The frame member 62 supports the filter 61 in a hollow cylindrical shape with a closed front end and an opening at the rear end, and has a cross-sectional shape in which the lower side of the circle is cut out when viewed in the front-rear direction. . A "missing cylinder" is a cylinder with a missing circular cross section. As a result, the upper side of the filter 61 has a curved shape with an arcuate cross section when viewed in the front-rear direction, and the lower side of the filter 61 has a flat plate shape.

フィルタ６１及びフレーム部材６２は、フィルタ部を構成する。フィルタ部は、前後方向に延びる柱状に形成される。前述の第２当接部４２ｃは、図２(Ａ)に示すフィルタ部の中心軸Ｘ以下の位置まで延在し、中心軸Ｘ上を含む範囲でフィルタ部と当接する。フィルタ部を含む作業機１の本体部は、基部４１を貫通する。 The filter 61 and the frame member 62 constitute a filter section. The filter portion is formed in a columnar shape extending in the front-rear direction. The aforementioned second contact portion 42c extends to a position below the central axis X of the filter portion shown in FIG. The main body portion of the working machine 1 including the filter portion passes through the base portion 41 .

フレーム部材６２は、基部６３を含む。基部６３は、欠円筒状部６３ａ及び傾斜筒状部６３ｂを含む。欠円筒状部６３ａは、前後方向視において円形の下方側が切り欠かれた断面形状を有する。欠円筒状部６３ａは、前後方向と平行である。欠円筒状部６３ａの前方に傾斜筒状部６３ｂが連なる。傾斜筒状部６３ｂは、前後方向視において円形の下方側が切り欠かれた断面形状を有し、前方に行くほど全体的に広がるように傾斜した筒状部である。 Frame member 62 includes a base 63 . The base 63 includes a hollow cylindrical portion 63a and an inclined cylindrical portion 63b. The cutout cylindrical portion 63a has a circular cross-sectional shape with a cutout on the lower side when viewed in the front-rear direction. The missing cylindrical portion 63a is parallel to the front-rear direction. An inclined cylindrical portion 63b continues in front of the missing cylindrical portion 63a. The slanted cylindrical portion 63b is a cylindrical portion that has a circular cross-sectional shape with a cutout on the lower side when viewed in the front-rear direction, and is slanted so as to widen as a whole toward the front.

基部６３の後部には切欠部６３ｃが設けられ、切欠部６３ｃにスナップフィットを構成する舌片部６３ｄが設けられる。切欠部６３ｃ及び舌片部６３ｄは、基部６３の上部と下部にそれぞれ設けられるが、図７には上部にあるものだけが現れる。 A notch 63c is provided at the rear of the base 63, and a tongue piece 63d forming a snap fit is provided in the notch 63c. The cutout portion 63c and the tongue portion 63d are provided at the upper and lower portions of the base portion 63, respectively, but only the portions located at the upper portion appear in FIG.

フレーム部材６２は、柱部６４を含む。柱部６４は、基部６３（傾斜筒状部６３ｂの前端部）から前方に延びる。ここでは、７本の柱部６４が欠円状に並ぶ。具体的には、７本の柱部６４のうち上側に位置する３本の柱部６４は、円弧状に並んで配置される。また、７本の柱部６４のうち下側に位置する４本の柱部６４は、直線状に並んで配置されており、４本の柱部６４の下端の上下方向位置は略等しい。７本の柱部６４は、前端部において互いに連結される。 Frame member 62 includes a column portion 64 . The column portion 64 extends forward from the base portion 63 (the front end of the inclined cylindrical portion 63b). Here, seven pillar portions 64 are arranged in a missing circle shape. Specifically, the three pillar parts 64 located on the upper side among the seven pillar parts 64 are arranged in a line in an arc shape. Further, among the seven pillar parts 64, the four pillar parts 64 located on the lower side are arranged in a straight line, and the positions of the lower ends of the four pillar parts 64 in the vertical direction are approximately equal. The seven pillars 64 are connected to each other at the front end.

フレーム部材６２に欠円筒状に支持されたフィルタ６１の円弧状部分の中心軸は、集塵ケース３０の中心軸と略同軸である。 The central axis of the arc-shaped portion of the filter 61 supported by the frame member 62 in a hollow cylindrical shape is approximately coaxial with the central axis of the dust collection case 30 .

フィルタ装置６０は、ホルダ６７を有する。ホルダ６７は、例えば樹脂成形体である。ホルダ６７は、フレーム部材６２の後端部を支持し、フレーム部材６２の基部６３との間にフィルタ６１の後端部を保持するための部材である。 Filter device 60 has a holder 67 . The holder 67 is, for example, a resin molded body. The holder 67 is a member for supporting the rear end of the frame member 62 and holding the rear end of the filter 61 between it and the base 63 of the frame member 62.

図７に示すように、ホルダ６７の外周面は、中心軸が前後方向と平行な欠円筒状を成す。ホルダ６７の内周面は、欠円筒状内面部７３ａ及び傾斜筒状内面部７３ｂを含む。欠円筒状内面部７３ａは、前後方向視において円形の下方側が切り欠かれた断面形状を有する。欠円筒状内面部７３ａは、前後方向と平行である。欠円筒状内面部７３ａの前方に傾斜筒状内面部７３ｂが連なる。傾斜筒状内面部７３ｂは、前後方向視において円形の下方側が切り欠かれた断面形状を有し、前方に行くほど全体的に広がるように傾斜した筒状内面部である。 As shown in FIG. 7, the outer circumferential surface of the holder 67 has a hollow cylindrical shape with a central axis parallel to the front-rear direction. The inner peripheral surface of the holder 67 includes a hollow cylindrical inner surface 73a and an inclined cylindrical inner surface 73b. The cutout cylindrical inner surface portion 73a has a circular cross-sectional shape with a cutout on the lower side when viewed in the front-rear direction. The hollow cylindrical inner surface portion 73a is parallel to the front-rear direction. An inclined cylindrical inner surface portion 73b continues in front of the missing cylindrical inner surface portion 73a. The slanted cylindrical inner surface portion 73b is a cylindrical inner surface portion that has a circular cross-sectional shape with a cutout on the lower side when viewed in the front-rear direction, and is slanted so as to widen as a whole toward the front.

ホルダ６７に対して、フィルタ６１を支持したフレーム部材６２を前方から組み付けていくことで、基部６３の外周面（欠円筒状部６３ａ及び傾斜筒状部６３ｂの外周面）と、ホルダ６７の内周面（欠円筒状内面部７３ａ及び傾斜筒状内面部７３ｂ）とで、フィルタ６１の後端部を保持（挟持）できる。 By assembling the frame member 62 that supports the filter 61 into the holder 67 from the front, the outer circumferential surface of the base 63 (the outer circumferential surface of the hollow cylindrical portion 63a and the inclined cylindrical portion 63b) and the inner surface of the holder 67 are removed. The rear end portion of the filter 61 can be held (pinched) by the circumferential surface (the partially cylindrical inner surface portion 73a and the inclined cylindrical inner surface portion 73b).

ホルダ６７は、フレーム部材６２の舌片部６３ｄと係合する２つの引っ掛け部６８を上部と下部にそれぞれ有する。舌片部６３ｄが引っ掛け部６８に引っ掛かることで、フレーム部材６２に対してホルダ６７が係止される。 The holder 67 has two hook portions 68 at its upper and lower portions that engage with the tongue portions 63d of the frame member 62, respectively. The holder 67 is locked to the frame member 62 by the tongue portion 63d being caught on the hook portion 68.

フィルタ装置６０は、ホルダ６７の後端部に取り付けられたリング状の弾性部材７５を有する。弾性部材７５は、ホルダ６７の後端部と本体ハウジング１０の前面部との間を、吸気口１４の周囲全周に渡って気密に塞ぐ。 The filter device 60 has a ring-shaped elastic member 75 attached to the rear end of the holder 67. The elastic member 75 airtightly closes the space between the rear end portion of the holder 67 and the front portion of the main body housing 10 over the entire circumference of the intake port 14 .

フィルタ装置６０を本体ハウジング１０の前端部に位置合わせして前方視で右回りに所定角度回転させると、ホルダ６７の一対の回転嵌合凸部６９と本体ハウジング１０の一対の回転嵌合凹部（図示省略）とが互いに回転嵌合し、フィルタ装置６０が本体ハウジング１０の前端部に取り付けられる。この状態で、空気流がフィルタ６１を外部から内部へ通過するようにフィルタ６１の後端の開口が吸気口１４と接続される（連通する）。 When the filter device 60 is aligned with the front end of the main body housing 10 and rotated clockwise by a predetermined angle when viewed from the front, the pair of rotational fitting protrusions 69 of the holder 67 and the pair of rotational fitting recesses of the main body housing 10 ( (not shown) are rotationally fitted to each other, and the filter device 60 is attached to the front end of the main body housing 10. In this state, the opening at the rear end of the filter 61 is connected (communicated) with the intake port 14 so that airflow passes through the filter 61 from the outside to the inside.

図２(Ａ)に示すように、作業機１は、モータ収容部１１の内部に、モータ９２及びファン９３を有する。モータ９２及びファン９３は、ケース９１内に一体化されたファンモータユニットであり、市販品であってもよい。 As shown in FIG. 2(A), the working machine 1 includes a motor 92 and a fan 93 inside the motor accommodating portion 11. The motor 92 and the fan 93 are a fan motor unit integrated within the case 91, and may be commercially available products.

モータ９２は、例えばインナーロータ型のブラシレスモータであり、駆動軸９２ａ、ロータ９２ｂ、ステータ９２ｃを有する。ファン９３は、モータ９２の本体（モータ９２のうち駆動軸９２ａを除く部分）の前方において駆動軸９２ａに直結され、モータ９２と共に回転する。ファン９３は、モータ９２の駆動力によって回転して空気流を発生させるファン部である。 The motor 92 is, for example, an inner rotor type brushless motor, and includes a drive shaft 92a, a rotor 92b, and a stator 92c. The fan 93 is directly connected to the drive shaft 92a in front of the main body of the motor 92 (the portion of the motor 92 excluding the drive shaft 92a), and rotates together with the motor 92. The fan 93 is a fan section that rotates by the driving force of the motor 92 and generates airflow.

以下、作業機１の動作を説明する。 The operation of the working machine 1 will be explained below.

電源ボタン２６が押されると、モータ９２が起動する。モータ９２は、最後に駆動していたときと同じ回転速度で回転する。モータ９２と一体にファン９３が回転し、空気流が生じる。この空気流は、流入口３１から集塵室３２内に入り、フィルタ６１を通過し、流出口３４、吸気口１４を通ってファン９３に吸い込まれ、モータ９２を冷却後、排気口１５から本体ハウジング１０の外部に排気される。塵埃は、空気流と共に流入口３１から集塵室３２内に入るが、フィルタ６１を通過できず、フィルタ６１に捕集されて集塵室３２に溜まる。このとき、図３(Ｂ)に示すように、覆い部５１が第３当接部４２ｄの下部との接触部を支点として後方に揺動することから、塵埃は集塵室３２内で斜め後下方向にガイドされ、フィルタ６１の下方の空間に溜まりやすい。 When the power button 26 is pressed, the motor 92 is activated. The motor 92 rotates at the same rotational speed as when it was last driven. A fan 93 rotates together with the motor 92 to generate airflow. This air flow enters the dust collection chamber 32 from the inlet 31, passes through the filter 61, passes through the outlet 34 and the intake port 14, is sucked into the fan 93, cools the motor 92, and then passes through the exhaust port 15 to the main body. The air is exhausted to the outside of the housing 10. Dust enters the dust collection chamber 32 from the inflow port 31 along with the airflow, but cannot pass through the filter 61 and is collected by the filter 61 and accumulated in the dust collection chamber 32 . At this time, as shown in FIG. 3(B), since the cover part 51 swings backward using the contact part with the lower part of the third contact part 42d as a fulcrum, the dust is moved diagonally backward in the dust collection chamber 32. It is guided downward and tends to accumulate in the space below the filter 61.

集塵室３２内に溜まった塵埃の排出（除去）は、以下のように行う。 The dust accumulated in the dust collection chamber 32 is discharged (removed) as follows.

まず、本体ハウジング１０の上下のラッチ部材２１を操作してラッチ部材２１による係止を解除しながら、本体ハウジング１０に対して集塵ケース３０を相対的に前方に移動させる（図４→図５）。集塵ケース３０のラッチ係合部３５に引出部４０の爪部４７が引っ掛かっているため、引出部４０も集塵ケース３０と共に本体ハウジング１０に対して相対的に前方に移動する。このとき、引出部４０の除塵ブレード５６がフィルタ６１の外周面を前方に向けて摺動し、フィルタ６１の外周面に堆積した塵埃を除去する。ここで除去した塵埃は集塵ケース３０内に落下する。 First, the dust collection case 30 is moved forward relative to the main body housing 10 while operating the upper and lower latch members 21 of the main body housing 10 to release the locking by the latch members 21 (Fig. 4 → Fig. 5 ). Since the claw part 47 of the drawer part 40 is hooked on the latch engagement part 35 of the dust collection case 30, the drawer part 40 also moves forward together with the dust collection case 30 relative to the main body housing 10. At this time, the dust removal blade 56 of the drawer portion 40 slides toward the outer peripheral surface of the filter 61 to remove dust accumulated on the outer peripheral surface of the filter 61. The dust removed here falls into the dust collection case 30.

続いて、把手部４９を内側に押して爪部４７とラッチ係合部３５による係止を解除しながら、把手部４９を持って引出部４０を集塵ケース３０に対して相対的に後方に移動させ、引出部４０を集塵ケース３０から取り外す（取り出す）。このとき、引出部４０、特に前端連結部４４が、集塵室３２内の塵埃を引き出す（掻き出す）。集塵ケース３０から引出部４０を取り外す動作は、ゴミ箱やゴミ袋の上で、集塵ケース３０の後端開口を重力方向に向けて行うとよい。 Next, while pushing the handle part 49 inward to release the lock between the claw part 47 and the latch engaging part 35, hold the handle part 49 and move the drawer part 40 backward relative to the dust collection case 30. to remove (take out) the drawer part 40 from the dust collection case 30. At this time, the drawer part 40, particularly the front end connecting part 44, draws out (scrapes out) the dust in the dust collection chamber 32. The operation of removing the drawer part 40 from the dust collection case 30 is preferably performed on a trash can or garbage bag with the rear end opening of the dust collection case 30 facing the direction of gravity.

引出部４０を集塵ケース３０に取り付けるには、引出部４０の爪部４７と集塵ケース３０のラッチ係合部３５とを周方向において互いに位置合わせして、引出部４０を集塵ケース３０内に向けて相対的に前方に移動させ、集塵ケース３０のラッチ係合部３５に引出部４０の爪部４７を引っ掛ければよい。 To attach the drawer part 40 to the dust collection case 30, the claw part 47 of the drawer part 40 and the latch engaging part 35 of the dust collection case 30 are aligned with each other in the circumferential direction, and the drawer part 40 is attached to the dust collection case 30. What is necessary is just to move it relatively inward and forward, and to hook the claw part 47 of the drawer part 40 to the latch engagement part 35 of the dust collection case 30.

引出部４０を取り付けた集塵ケース３０を本体ハウジング１０に取り付けるには、引出部４０の連結部４６と下側のラッチ部材２１とを周方向において互いに位置合わせして、集塵ケース３０を本体ハウジング１０の前端部に向けて相対的に後方に移動させ、引出部４０のラッチ係合部４８に下側のラッチ部材２１の爪部２３を引っ掛けると共に、集塵ケース３０のラッチ係合部３６に上側のラッチ部材２１の爪部２３を引っ掛ければよい。 To attach the dust collection case 30 with the drawer part 40 attached to the main body housing 10, the connection part 46 of the drawer part 40 and the lower latch member 21 are aligned with each other in the circumferential direction, and the dust collection case 30 is attached to the main body housing 10. The lower latch member 21 is moved relatively backward toward the front end of the housing 10, and the latch 23 of the lower latch member 21 is hooked on the latch engagement portion 48 of the drawer portion 40, and the latch engagement portion 36 of the dust collection case 30 is The claw portion 23 of the upper latch member 21 may be hooked onto the upper latch member 21.

本実施の形態によれば、下記の効果を奏することができる。 According to this embodiment, the following effects can be achieved.

(1) 引出部４０は、下側のラッチ部材２１の爪部２３に係合するラッチ係合部４８及び、集塵ケース３０に係合する爪部４７を有する。また、集塵ケース３０は、爪部４７に係合するラッチ係合部３５を有する。すなわち、本体ハウジング１０と集塵ケース３０は、下部において引出部４０を介して連結される。これにより、例えば上下のラッチ部材２１やラッチ係合部３５とは別に引出部４０を係止するための係止部を本体ハウジング１０や集塵ケース３０に設ける場合等と比較して、引出部４０を係止するために作業機１の本体部や集塵ケース３０の係合部が多くなることを抑制し、係合部の設置スペースを確保するために製品が大型化して作業性が損なわれることを抑制でき、またデザイン性にも優れる。 (1) The drawer portion 40 has a latch engaging portion 48 that engages with the claw portion 23 of the lower latch member 21 and a claw portion 47 that engages with the dust collection case 30. Further, the dust collection case 30 has a latch engaging portion 35 that engages with the claw portion 47. That is, the main body housing 10 and the dust collection case 30 are connected through the drawer part 40 at the lower part. As a result, compared to, for example, a case where a locking part for locking the drawer part 40 is provided in the main body housing 10 or the dust collection case 30 separately from the upper and lower latch members 21 and the latch engaging part 35, the drawer part 40, the number of engaging parts of the main body of the working machine 1 and the dust collection case 30 is suppressed from increasing, and in order to secure installation space for the engaging parts, the product becomes larger and workability is impaired. It also has an excellent design.

(2) 引出部４０が無いと本体ハウジング１０に対して集塵ケース３０を確実に係止できない構成のため、集塵ケース３０に対する引出部４０の取付を忘れることを抑制できる。 (2) Without the drawer part 40, the dust collection case 30 cannot be reliably locked to the main body housing 10, so forgetting to attach the drawer part 40 to the dust collection case 30 can be suppressed.

(3) 引出部４０の前部の第１当接部４２ｂが集塵室３２の内面と当接して引出部４０の前方への移動を規制し、引出部４０の後部の爪部４７が集塵ケース３０のラッチ係合部３５と係合して引出部４０の後方への移動を規制するため、集塵室３２内で引出部４０の位置を安定させることができる。 (3) The first contact part 42b at the front of the drawer part 40 contacts the inner surface of the dust collection chamber 32 to restrict forward movement of the drawer part 40, and the claw part 47 at the rear part of the drawer part 40 collects dust. Since it engages with the latch engaging portion 35 of the dust case 30 to restrict rearward movement of the drawer portion 40, the position of the drawer portion 40 within the dust collection chamber 32 can be stabilized.

(4) フィルタ装置６０は、フィルタ６１を支持したフレーム部材６２をホルダ６７に対して前方から組み付けていくことで構成される。よって、フィルタ装置６０の組立過程においてフレーム部材６２の柱部６４をホルダ６７の内側に通す必要がない。このため、柱部６４に支持されるフィルタ６１の前後方向視の外寸をホルダ６７の前後方向視の内寸よりも大きくすることができる。 (4) The filter device 60 is constructed by assembling the frame member 62 supporting the filter 61 to the holder 67 from the front. Therefore, in the process of assembling the filter device 60, there is no need to pass the column portions 64 of the frame member 62 inside the holder 67. Therefore, the outer dimension of the filter 61 supported by the pillar portion 64 can be made larger than the inner dimension of the holder 67 when viewed in the front-back direction.

(5) 引出部４０の柱部４２（集塵室３２の中心軸線の真上に位置する柱部４２）の第２当接部４２ｃがフィルタ６１に対して前方から当接する。このため、作業機１を誤って落下させた場合等の衝撃によりフィルタ６１を支持したフレーム部材６２がホルダ６７から前方に離脱するリスクを抑制できる。ここで、第２当接部４２ｃは、図２(Ａ)に示すフィルタ部の中心軸Ｘ上を含む範囲でフィルタ６１と当接するため、１つの第２当接部４２ｃのみでフィルタ部の離脱を好適に抑制できる。 (5) The second contact portion 42c of the column portion 42 of the drawer portion 40 (the column portion 42 located directly above the central axis of the dust collection chamber 32) contacts the filter 61 from the front. Therefore, it is possible to suppress the risk that the frame member 62 supporting the filter 61 will separate from the holder 67 forward due to an impact such as when the working machine 1 is accidentally dropped. Here, since the second contact portion 42c contacts the filter 61 in a range including the central axis X of the filter portion shown in FIG. can be suitably suppressed.

(6) 引出部４０の延長部４６は、本体ハウジング１０のモータ収容部１１の外面と、集塵ケース３０の延長部３３の内面と、によって上下方向（集塵ケース３０の径方向）に挟み込まれる構成のため、延長部４６を安定的に保持できる。 (6) The extension part 46 of the drawer part 40 is sandwiched in the vertical direction (radial direction of the dust collection case 30) by the outer surface of the motor housing part 11 of the main body housing 10 and the inner surface of the extension part 33 of the dust collection case 30. Because of this configuration, the extension portion 46 can be stably held.

(7) 下側のラッチ部材２１の爪部２３の立設方向（下方）と、引出部４０の爪部４７の立設方向（下方）と、が平行なため、本体ハウジング１０からの集塵ケース３０の外れを好適に抑制できる。 (7) Since the upright direction (downward) of the claw portion 23 of the lower latch member 21 and the upright direction (downward) of the claw portion 47 of the drawer portion 40 are parallel, dust collection from the main body housing 10 is prevented. Dislodgement of the case 30 can be suitably suppressed.

(8) フィルタ装置６０は、基部６３の傾斜筒状部６３ｂの外周面とホルダ６７の傾斜筒状内面部７３ｂとでフィルタ６１の後端部を挟持するため、挟持部分の密閉性が高く、また組立時にフィルタ６１がめくれにくい。 (8) In the filter device 60, the rear end portion of the filter 61 is held between the outer circumferential surface of the inclined cylindrical portion 63b of the base portion 63 and the inclined cylindrical inner surface portion 73b of the holder 67, so that the sandwiched portion has a high airtightness. Moreover, the filter 61 is difficult to turn over during assembly.

(9) 集塵室３２内においてフィルタ６１は、左右の長さが上下の長さよりも大きい形状を有する。具体的には、集塵室３２内においてフィルタ６１は、前後方向視において円形の下方側が切り欠かれた断面形状を有する。また、集塵室３２内においてフィルタ６１の下端の上下方向位置は流入口３１の上下方向範囲と重なる。さらに、フィルタ６１の下端は、流入口３１の中心軸よりも上方に位置する。よって、フィルタ６１の下部とそれに対向する集塵室３２の内面との間の空間を大きく確保できる。このため、フィルタ６１が塵埃に埋まるような形となりにくく、フィルタ６１の早期の目詰まりを抑制できる。これにより、長期間にわたって高い吸込み風量を維持可能となり、また集塵ケース３０の塵埃を排出してフィルタ６１を清掃する頻度を低くでき、作業性が良い。なお、フィルタ６１の上下方向の長さと同じ長さの外径の円筒フィルタの場合、フィルタ表面積が小さくて目詰まりが早くなるが、そのような円筒フィルタと比較してフィルタ６１は表面積が大きいため、早期の目詰まりを抑制できる。また、フィルタ６１の円弧状部分と同径の円筒フィルタとしつつ集塵ケース３０を下方に拡張した形状の集塵ケースにすると集塵ケースが大型化するが、本実施の形態によればそのような大型化は不要である。 (9) In the dust collection chamber 32, the filter 61 has a shape in which the horizontal length is larger than the vertical length. Specifically, in the dust collection chamber 32, the filter 61 has a circular cross-sectional shape with a cutout on the lower side when viewed in the front-rear direction. Furthermore, the vertical position of the lower end of the filter 61 within the dust collection chamber 32 overlaps with the vertical range of the inflow port 31 . Furthermore, the lower end of the filter 61 is located above the central axis of the inlet 31. Therefore, a large space can be secured between the lower part of the filter 61 and the inner surface of the dust collection chamber 32 facing thereto. Therefore, the filter 61 is less likely to be buried in dust, and early clogging of the filter 61 can be suppressed. This makes it possible to maintain a high suction air volume over a long period of time, and to reduce the frequency of cleaning the filter 61 by discharging dust from the dust collection case 30, resulting in good workability. Note that in the case of a cylindrical filter with an outer diameter that is the same length as the vertical length of the filter 61, the filter surface area is small and clogging occurs quickly, but compared to such a cylindrical filter, the filter 61 has a larger surface area. , early clogging can be suppressed. Further, if the dust collection case 30 is expanded downward while using a cylindrical filter having the same diameter as the circular arc portion of the filter 61, the dust collection case will become larger. There is no need to increase the size.

(10) 図３(Ｂ)に示すように覆い部５１が第３当接部４２ｄの下部との接触部を支点として後方に揺動するため、塵埃を集塵室３２内で斜め後下方向にガイドし、前述のように大きく確保されたフィルタ６１の下方の空間に溜めることができる。 (10) As shown in FIG. 3(B), since the cover part 51 swings backward using the contact part with the lower part of the third contact part 42d as a fulcrum, dust is collected in the dust collection chamber 32 in an obliquely rearward and downward direction. It is possible to guide the liquid to the air and collect it in the space below the filter 61, which is large as described above.

(11) 引出部４０は、集塵ケース３０から流出口３４を介して取り外される際に、集塵室３２内の塵埃を流出口３４を介して引き出す（掻き出す）。このため、集塵室３２内に塵埃が詰まって集塵ケース３０の後端開口を下に向けただけでは集塵室３２内から塵埃を排出できない場合でも、集塵ケース３０から引出部４０を取り外すことで集塵室３２内から塵埃を簡易に除去可能で作業性が良い。特に、デザイン性の観点で集塵ケース３０の径方向の寸法を抑えた場合、高い塵埃収容量を確保するためには集塵ケース３０を前後方向に長くする必要があり、詰まりが発生しやすい。本実施の形態では、集塵ケース３０が細長い形状の場合でも集塵室３２内から塵埃を簡易に除去可能で作業性が良い。換言すれば、本実施の形態は、細長い形状の集塵ケース３０とすることを可能とし、径方向サイズの小型化を達成可能とするものである。 (11) When the drawer part 40 is removed from the dust collection case 30 via the outlet 34, it pulls out (scrapes) the dust in the dust collection chamber 32 via the outlet 34. Therefore, even if the dust collection chamber 32 is clogged with dust and dust cannot be removed from the dust collection chamber 32 by simply turning the rear end opening of the dust collection case 30 downward, the drawer section 40 can be removed from the dust collection case 30. By removing it, dust can be easily removed from inside the dust collection chamber 32, resulting in good workability. In particular, when the radial dimension of the dust collection case 30 is suppressed from the viewpoint of design, the dust collection case 30 needs to be longer in the front and back direction in order to secure a high dust capacity, and clogging is likely to occur. . In this embodiment, even when the dust collection case 30 has an elongated shape, dust can be easily removed from the inside of the dust collection chamber 32, resulting in good workability. In other words, the present embodiment allows the dust collection case 30 to have an elongated shape, thereby making it possible to reduce the size in the radial direction.

(12) 引出部４０は、集塵室３２内から流入口３１に向かう塵埃の流出を防止する弁部として機能する規制部５０を前端部に有する。また、引出部４０は、フィルタ６１の除塵用の除塵ブレード５６を有する。すなわち、引出部４０は、集塵室３２内から塵埃を引き出すための専用部材ではない。このため、集塵室３２内から塵埃を引き出すための専用部材を別途設ける場合と比較して、部品点数の増加や製品重量の増加、コストを抑制できる。 (12) The drawer portion 40 has a regulating portion 50 at its front end that functions as a valve portion that prevents dust from flowing out from the inside of the dust collection chamber 32 toward the inlet 31. Further, the drawer section 40 has a dust removal blade 56 for removing dust from the filter 61. That is, the drawer section 40 is not a dedicated member for drawing out dust from inside the dust collection chamber 32. Therefore, compared to the case where a dedicated member for drawing out dust from inside the dust collection chamber 32 is separately provided, an increase in the number of parts, an increase in product weight, and cost can be suppressed.

(13) 規制部５０により流入口３１を塞ぐためには引出部４０が集塵室３２内の前端部まで延びている必要があるが、集塵室３２内から塵埃を引き出す機能においても引出部４０は集塵室３２内の前端部まで延びていることが望ましい。すなわち、集塵室３２内の前端部まで延びている必要がある規制部５０の機能を引出部４０に組み込んだことで、引出部４０は、流入口３１の閉塞と集塵室３２内から塵埃を引き出しの双方を好適に実現できる。 (13) In order to block the inflow port 31 with the regulating part 50, the drawer part 40 needs to extend to the front end inside the dust collection chamber 32, but the drawer part 40 also has the function of drawing out dust from the dust collection chamber 32. It is desirable that the dust-collecting chamber 32 extends to the front end inside the dust collecting chamber 32. That is, by incorporating the function of the regulating part 50 that needs to extend to the front end inside the dust collection chamber 32 into the drawer part 40, the drawer part 40 can block the inlet 31 and prevent dust from inside the dust collection chamber 32. It is possible to suitably realize both the drawer and the drawer.

(14) 引出部４０が規制部５０を有するため、規制部５０を集塵ケース３０にネジ止め等により固定する必要なく、組立性が良い。規制部５０は、取付部５２を右方から保持部４５に嵌め込んでいくことで保持部４５に簡易に装着できる。規制部５０を集塵ケース３０にネジ止め等により固定する工程があると組立性が悪く、特に集塵ケース３０が細長い形状の場合は組立性が顕著に悪化するが、本実施の形態ではそうした問題を好適に解決できる。 (14) Since the drawer part 40 has the regulating part 50, there is no need to fix the regulating part 50 to the dust collection case 30 with screws or the like, and the assemblability is good. The regulating portion 50 can be easily attached to the holding portion 45 by fitting the attachment portion 52 into the holding portion 45 from the right side. If there is a step of fixing the regulating part 50 to the dust collection case 30 by screwing or the like, the ease of assembly will be poor, and especially if the dust collection case 30 has an elongated shape, the ease of assembly will deteriorate markedly. Able to solve problems appropriately.

(15) 引出部４０が除塵ブレード５６を有し、引出部４０を本体ハウジング１０から集塵ケース３０と共に取り外す際に除塵ブレード５６がフィルタ６１の外周面を摺動してフィルタ６１の外周面に堆積した塵埃を除去する。このため、集塵ケース３０内の塵埃を除去する作業の過程でフィルタ６１の除塵が行われ、作業性が良い。 (15) The drawer part 40 has a dust removal blade 56, and when the drawer part 40 is removed from the main body housing 10 together with the dust collection case 30, the dust removal blade 56 slides on the outer peripheral surface of the filter 61 and touches the outer peripheral surface of the filter 61. Remove accumulated dust. Therefore, the filter 61 is removed in the process of removing the dust inside the dust collection case 30, resulting in good work efficiency.

（実施の形態２）
図８～図９は、本発明の実施の形態２に係る作業機２に関する。作業機２は、実施の形態１の作業機１の引出部４０が掃除ブラシ１４０に替わったものである。以下、実施の形態１との相違点を中心に説明する。 (Embodiment 2)
8 to 9 relate to the working machine 2 according to the second embodiment of the present invention. In the work machine 2, the drawer part 40 of the work machine 1 of the first embodiment is replaced with a cleaning brush 140. Hereinafter, differences from Embodiment 1 will be mainly explained.

掃除ブラシ１４０は、基部１４６、爪部１４７、ラッチ係合部１４８、把手部１４９、ブラシ部１５０を有する。基部１４６、爪部１４７、ラッチ係合部１４８、把手部１４９は、引出部４０の延長部４６、爪部４７、ラッチ係合部４８、把手部４９にそれぞれ対応する部分である。ブラシ部１５０は、基部１４６の前端部から前方に延びる。 The cleaning brush 140 has a base portion 146, a claw portion 147, a latch engaging portion 148, a handle portion 149, and a brush portion 150. The base portion 146, the claw portion 147, the latch engagement portion 148, and the handle portion 149 are portions corresponding to the extension portion 46, the claw portion 47, the latch engagement portion 48, and the handle portion 49 of the drawer portion 40, respectively. Brush portion 150 extends forward from the front end of base portion 146 .

掃除ブラシ１４０は、集塵ケース３０が本体ハウジング１０から取り外された状態で集塵ケース３０から脱落しないように、図９(Ｂ)のＢ２部に示すように基部１４６の前下端部の突起部１４６ａが集塵ケース３０の延長部３３の内面の凹部３３ａに嵌合し、かつ図９(Ｃ)のＣ２部に示すように爪部１４７の先端の突起部１４７ａが集塵ケース３０の延長部３３の突起部３３ｂと係合する。このような構造は、実施の形態１に設けてもよい。 In order to prevent the cleaning brush 140 from falling off from the dust collection case 30 when the dust collection case 30 is removed from the main body housing 10, the cleaning brush 140 is provided with a protrusion at the front lower end of the base 146 as shown in section B2 in FIG. 9(B). 146a fits into the recess 33a on the inner surface of the extension 33 of the dust collection case 30, and as shown in section C2 in FIG. It engages with the protrusion 33b of 33. Such a structure may be provided in the first embodiment.

（実施の形態３）
図１０は、本発明の実施の形態３に係る作業機３の要部分解斜視図である。本実施の形態では、作業機３の上部に掃除ブラシ１４０を設ける。集塵ケース３０Ａは、掃除ブラシ１４０の爪部１４７を引っ掛けるラッチ係合部３５Ａ（ラッチ係合部３５に対応）を有し、またラッチ係合部３６に対応するラッチ係合部３６Ａを有する。掃除ブラシ１４０のラッチ係合部１４８は、上側のラッチ部材２１の爪部２３と係合する。 (Embodiment 3)
FIG. 10 is an exploded perspective view of essential parts of a working machine 3 according to Embodiment 3 of the present invention. In this embodiment, a cleaning brush 140 is provided on the upper part of the working machine 3. The dust collection case 30A has a latch engagement part 35A (corresponding to the latch engagement part 35) for hooking the claw part 147 of the cleaning brush 140, and a latch engagement part 36A corresponding to the latch engagement part 36. The latch engaging portion 148 of the cleaning brush 140 engages with the claw portion 23 of the upper latch member 21.

以上、実施の形態を例に本発明を説明したが、本発明は実施の形態に限定されない。実施の形態で具体的に説明した各事項には請求項に記載の範囲で種々の変形が可能である。 Although the present invention has been described above using the embodiments as examples, the present invention is not limited to the embodiments. Various modifications can be made to each item specifically described in the embodiments within the scope of the claims.

実施の形態１において、下側のラッチ部材２１の爪部２３（第１係合部）がラッチ係合部３５（第４係合部）に係合する構成としてもよい。 In the first embodiment, a configuration may be adopted in which the claw portion 23 (first engaging portion) of the lower latch member 21 engages with the latch engaging portion 35 (fourth engaging portion).

作業機１は、実施の形態で例示したクリーナに限定されず、他の種類のものであってもよい。例えば、ハンマドリルにおける集塵アダプタと集塵ケースとの間に掃除ブラシ１４０のような別体部材を設けてもよい。この場合、ハンマドリルの本体ハウジングと集塵アダプタが本体部に対応する。 The work machine 1 is not limited to the cleaner illustrated in the embodiment, and may be of other types. For example, a separate member such as the cleaning brush 140 may be provided between the dust collection adapter and the dust collection case in the hammer drill. In this case, the main body housing and dust collection adapter of the hammer drill correspond to the main body.

実施の形態で具体的な数値として例示した柱部４２、６４の本数や除塵ブレード５６の数等は、発明の範囲を何ら限定するものではなく、要求される仕様に合わせて任意に変更できる。 The numbers of the pillar portions 42 and 64, the number of dust removal blades 56, etc., which are illustrated as specific numerical values in the embodiment, do not limit the scope of the invention in any way, and can be arbitrarily changed according to the required specifications.

１～３…作業機、１０…本体ハウジング、１１…モータ収容部、１２…ハンドル部、１３…電池パック装着部、１４…吸気口、１５…排気口、１９…電池パック、２１…ラッチ部材、２２…押圧部、２３…爪部、２４…バネ、２５…スイッチ部、２６…電源ボタン、２７…パワー上昇ボタン、２８…パワー低下ボタン、３０…集塵ケース（ダストケース）、３１…流入口（ノズル部）、３２…集塵室、３３…延長部、３４…流出口（排出口）、３５、３６…ラッチ係合部、４０…引出部、４１…基部、４２…柱部、４３…中間連結部、４４…前端連結部、４５…保持部、４６…延長部、４７…爪部、４８…ラッチ係合部、４９…把手部、５０…規制部、５１…覆い部、５２…取付部、５６…除塵ブレード、６０…フィルタ装置、６１…フィルタ、６２…フレーム部材、６３…基部、６３ａ…欠円筒状部、６３ｂ…傾斜筒状部、６３ｃ…切欠部、６３ｄ…舌片部、６４…柱部、６７…ホルダ、６８…引っ掛け部、６９…回転嵌合凸部、７３ａ…欠円筒状内面部、７３ｂ…傾斜筒状内面部、７５…弾性部材、９２…モータ（駆動部）、９２ａ…駆動軸、９３…ファン（ファン部）、１４０…掃除ブラシ、１４６…基部、１４７…爪部、１４８…ラッチ係合部、１４９…把手部、１５０…ブラシ部。 DESCRIPTION OF SYMBOLS 1-3... Work equipment, 10... Main body housing, 11... Motor accommodating part, 12... Handle part, 13... Battery pack attachment part, 14... Intake port, 15... Exhaust port, 19... Battery pack, 21... Latch member, 22... Pressing part, 23... Claw part, 24... Spring, 25... Switch part, 26... Power button, 27... Power up button, 28... Power down button, 30... Dust collection case (dust case), 31... Inflow port (nozzle part), 32...dust collection chamber, 33...extension part, 34...outlet (discharge port), 35, 36...latch engagement part, 40...drawer part, 41...base, 42...column part, 43... Intermediate connecting part, 44... Front end connecting part, 45... Holding part, 46... Extension part, 47... Claw part, 48... Latch engaging part, 49... Handle part, 50... Regulating part, 51... Covering part, 52... Mounting part, 56...dust removal blade, 60...filter device, 61...filter, 62...frame member, 63...base, 63a...notched cylindrical part, 63b...slanted cylindrical part, 63c...notch part, 63d...tongue part, 64... Pillar part, 67... Holder, 68... Hook part, 69... Rotating fitting convex part, 73a... Missing cylindrical inner surface part, 73b... Inclined cylindrical inner surface part, 75... Elastic member, 92... Motor (drive part) , 92a... Drive shaft, 93... Fan (fan part), 140... Cleaning brush, 146... Base, 147... Claw part, 148... Latch engaging part, 149... Handle part, 150... Brush part.

Claims

motor and
an operating section that operates in response to the driving force of the motor;
a main body having the motor and the operating section;
a cover portion that covers at least a portion of the surface of the main body portion;
a separate member detachably installed between the main body part and the cover part,
The main body portion has a first engaging portion that engages with the separate member,
The separate member has a second engaging part that engages with the first engaging part and a third engaging part that engages with the cover part,
In the working machine, the cover part has a fourth engaging part that engages with the third engaging part.

The working machine according to claim 1, wherein the separate member has a first contact portion that contacts the inner surface of the cover portion at a position spaced apart from the second engagement portion.

The cover part has a cylindrical shape tapered on one side in the first direction,
The separate member is
The first contact portion is provided on one side in the first direction, and the first contact portion contacts an inner surface of the cover portion to restrict movement to the one side in the first direction;
The third engaging portion is provided on the other side in the first direction, and the third engaging portion engages with the fourth engaging portion to restrict movement to the other side in the first direction. The working machine according to claim 2.

The main body section includes a main body housing having the motor and the operating section, and a filter section attached to the main body housing,
The filter portion is removable from the main body housing by moving to one side in the first direction,
The working machine according to claim 3, wherein the separate member has a second contact portion that contacts the filter portion on one side in the first direction and restricts movement of the filter portion.

The filter portion is formed in a columnar shape extending in the first direction,
The working machine according to claim 4, wherein the second contact portion contacts the filter portion on a central axis of the filter portion.

The working machine according to claim 3, wherein the separate member has an annular portion, and the main body portion passes through the annular portion.

The working machine according to claim 3, wherein the separate member has an extension portion extending from an end of the cover portion on the other side in the first direction to the other side in the first direction.

The fourth engaging part is an opening provided in the cover part,
The third engaging part is a protrusion that stands up from the separate member and engages with the fourth engaging part by being inserted into the fourth engaging part,
The working machine according to claim 1, wherein the cover section sandwiches the separate member between the cover section and the main body section in the direction in which the third engaging section is erected.

The second engaging portion is an opening provided in the separate member,
The first engaging part is a protrusion that stands up from the main body part and engages with the second engaging part by being inserted into the second engaging part,
The working machine according to claim 8, wherein a direction in which the first engaging portion is erected is parallel to a direction in which the third engaging portion is erected.

The main body portion has a fifth engaging portion that engages with the cover portion,
The working machine according to claim 1, wherein the cover part has a sixth engaging part that engages with the fifth engaging part.