JP2010048203A - Blast fan device - Google Patents

Blast fan device Download PDF

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Publication number
JP2010048203A
JP2010048203A JP2008214446A JP2008214446A JP2010048203A JP 2010048203 A JP2010048203 A JP 2010048203A JP 2008214446 A JP2008214446 A JP 2008214446A JP 2008214446 A JP2008214446 A JP 2008214446A JP 2010048203 A JP2010048203 A JP 2010048203A
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Prior art keywords
engagement
blower fan
engagement member
engaging
rotating shaft
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JP2008214446A
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Japanese (ja)
Inventor
Eiji Suzumura
英二 鈴村
Hidetomo Shimoda
秀友 下田
Noboru Nonomura
昇 野々村
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Toshiba Carrier Corp
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Toshiba Carrier Corp
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Priority to JP2008214446A priority Critical patent/JP2010048203A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a blast fan device certainly preventing a blast fan from being detached by stabilizing engagement of an engagement member with an engagement groove. <P>SOLUTION: This blast fan device includes: the engagement groove 26 formed in the peripheral portion of a rotating shaft 25; the tabular engagement member 40 provided to the blast fan 30 and preventing detachment of the blast fan 30 by being engaged with the engagement groove 26; a push button 60 moving the engagement member 40 by pressing operation; and a tabular plate spring 50 abutting on the end 41 of the engagement member 40. The push button 60 is operated to be push-pressed, thereby the engagement hole 42 of the engagement member 40 is disengaged from the engagement groove 26 of the rotating shaft 25. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、回転軸に形成した係合溝に送風ファンに設けた平板状の係合部材を係合させて送風ファンを回転軸に抜け止め状態に装着する構成の送風ファン装置に関し、特に送風ファンの抜け止めをより確実に行ない得るようにしたものに関する。   The present invention relates to a blower fan device having a structure in which a flat engagement member provided on a blower fan is engaged with an engagement groove formed on a rotary shaft, and the blower fan is attached to the rotary shaft in a state of being prevented from being detached. The present invention relates to a fan that can more reliably prevent a fan from being pulled out.

例えば換気扇等の送風ファン装置において、駆動モータと送風ファンとの着脱操作の容易化を図ったものが知られている(例えば、特許文献1参照)。これは図10,11に示すように駆動モータ200の回転軸201の外周部に係合溝202を形成すると共に、送風ファン210に、係合部材220を設けたものとなっている。係合部材220は、一対のばね線部221を有した二股状に形成され、その基端側に操作部材としてのプラスチック製の押釦222が設けられている。また送風ファン210には一対のばね線部221を拡開させるためのテーパ面231を有する拡開部230が設けられている。なお、図10中240はボス部、241はボス部の凹部、203はピンを示している。   For example, in a blower fan device such as a ventilating fan, one that facilitates the attachment / detachment operation of a drive motor and a blower fan is known (for example, see Patent Document 1). As shown in FIGS. 10 and 11, the engaging groove 202 is formed on the outer peripheral portion of the rotating shaft 201 of the drive motor 200, and the engaging member 220 is provided on the blower fan 210. The engaging member 220 is formed in a bifurcated shape having a pair of spring wire portions 221, and a plastic push button 222 as an operation member is provided on the base end side thereof. The blower fan 210 is provided with an expanded portion 230 having a tapered surface 231 for expanding the pair of spring wire portions 221. In FIG. 10, reference numeral 240 denotes a boss portion, 241 denotes a concave portion of the boss portion, and 203 denotes a pin.

このような送風ファン装置では、ピン203をボス部240の凹部241に係合させることで、回転力を伝達させている。また、ばね線部221をその縮小方向のばね力により係合溝202に係合させて送風ファン210を回転軸201に抜け止め状態に装着し、押釦222をばね線部221の先端方向に移動操作することにより、ばね線部221の両端部が拡開部230のテーパ面231を摺動して拡開し、係合溝202から外れるように構成されている。
実公平3−41115号公報
In such a blower fan device, the pin 203 is engaged with the concave portion 241 of the boss portion 240 to transmit the rotational force. Further, the spring wire portion 221 is engaged with the engaging groove 202 by the spring force in the reduction direction, and the blower fan 210 is attached to the rotating shaft 201 in a state of being prevented from being detached, and the push button 222 is moved in the distal direction of the spring wire portion 221. By operating, both ends of the spring wire portion 221 are configured to slide and expand on the tapered surface 231 of the expanding portion 230 so as to be disengaged from the engaging groove 202.
Japanese Utility Model Publication 3-41115

上述した送風ファン装置では、次のような問題があった。すなわち、係合溝202と係合するばね線部221が線材であることから、係合部材であるばね線部221と係合溝202との係り量が安定しない。そのため、何らかの理由で送風ファン210に抜け方向の力が作用した場合に、取付状態が不完全であったりすると、ばね線部221が係合溝202から抜け外れ、送風ファン210が回転軸201から脱落するおそれがある。   The above-described blower fan device has the following problems. That is, since the spring wire portion 221 that engages with the engagement groove 202 is a wire, the amount of engagement between the spring wire portion 221 that is the engagement member and the engagement groove 202 is not stable. Therefore, if for some reason a force in the direction of disconnection is applied to the blower fan 210 and the mounting state is incomplete, the spring wire portion 221 is detached from the engagement groove 202, and the blower fan 210 is removed from the rotating shaft 201. There is a risk of falling off.

そこで本発明は、係合部材と係合溝との係り量を安定的に多くし、送風ファンの抜け止めをより確実に行ない得る送風ファン装置を提供することを目的としている。   Therefore, an object of the present invention is to provide a blower fan device that can stably increase the amount of engagement between the engagement member and the engagement groove and more reliably prevent the blower fan from coming off.

前記課題を解決し目的を達成するために、本発明の送風ファン装置は次のように構成されている。   In order to solve the above problems and achieve the object, the blower fan apparatus of the present invention is configured as follows.

回転軸に送風ファンを着脱自在に取り付ける送風ファン装置において、前記回転軸に設けられた回転伝達部と、前記回転軸の外周部に形成した係合溝と、前記送風ファンに設けられ、前記回転軸への挿入により前記回転伝達部に係合する被回転伝達部と、前記回転軸と直交して前記送風ファンに設けられた平板状の係合部材と、前記係合部材に設けられ、前記係合溝に係合して前記送風ファンの抜け止めをなす係合孔と、前記係合部材の先端側に配置されたばね部材と、押圧操作により前記係合部材を前記ばね部材の付勢力に抗して前記係合部材の回転軸に直交する方向に移動させ、前記係合孔を前記係合溝から外す操作部材とを具備することを特徴とする。   In the blower fan device in which the blower fan is detachably attached to the rotation shaft, the rotation transmission portion provided in the rotation shaft, the engagement groove formed in the outer peripheral portion of the rotation shaft, and the rotation fan provided in the rotation fan. A rotation transmission part that engages with the rotation transmission part by insertion into a shaft, a flat engagement member provided in the blower fan perpendicular to the rotation shaft, and provided in the engagement member, An engagement hole that engages with an engagement groove to prevent the blower fan from being removed, a spring member that is disposed on the distal end side of the engagement member, and a biasing force of the spring member by a pressing operation And an operation member that moves the engagement hole in a direction orthogonal to the rotation axis of the engagement member and removes the engagement hole from the engagement groove.

または、回転軸に送風ファンを着脱自在に取り付ける送風ファン装置において、前記回転軸に設けられた回転伝達部と、前記回転軸の外周部に形成した係合溝と、前記送風ファンに設けられ、前記回転軸への挿入により前記回転伝達部に係合する被回転伝達部と、前記回転軸と平行に設けられた支点軸を回動軸として開閉動作する平板状の第1の半係合部材及び平板状の第2の半係合部材と、前記第1の半係合部材の前記第2の半係合部材側に設けられ、前記係合溝に係合して前記送風ファンの抜け止めをなす第1の切欠と、前記第2の半係合部材の前記第1の半係合部材側に設けられ、前記係合溝に係合して前記送風ファンの抜け止めをなす第2の切欠と、前記第1の半係合部材と前記第2の半係合部材とにわたって設けられ、前記第1の半係合部材及び前記第2の半係合部材を閉じる方向に付勢するばね部材と、押圧操作により閉じた状態の前記第1の半係合部材及び前記第2の半係合部材を前記ばね部材の付勢力に抗して開き、前記第1の切欠及び前記第2の切欠を前記回転軸の前記係合溝から外す操作部材とを具備したことを特徴とする。   Alternatively, in the blower fan device in which the blower fan is detachably attached to the rotation shaft, the rotation transmission portion provided in the rotation shaft, the engagement groove formed in the outer peripheral portion of the rotation shaft, and the blower fan are provided. A rotation transmission portion that engages with the rotation transmission portion by insertion into the rotation shaft, and a flat plate-like first half-engagement member that opens and closes with a fulcrum shaft provided parallel to the rotation shaft as a rotation shaft And a flat plate-like second half-engagement member, and the first half-engagement member provided on the second half-engagement member side and engaged with the engagement groove to prevent the blower fan from coming off. And a second notch that is provided on the first half-engagement member side of the second half-engagement member and engages with the engagement groove to prevent the blower fan from coming off. A notch, the first half-engaging member, and the second half-engaging member; A spring member that biases the engagement member and the second half-engagement member in a closing direction, and the first half-engagement member and the second half-engagement member that are closed by a pressing operation; And an operation member that opens against a biasing force of the member and removes the first notch and the second notch from the engagement groove of the rotating shaft.

本発明によれば、係合部材と係合溝との係り量を安定的に多くし、送風ファンの抜け止めをより確実に行なうことが可能となる。   According to the present invention, it is possible to stably increase the amount of engagement between the engagement member and the engagement groove and more reliably prevent the blower fan from coming off.

図1は本発明の第1の実施形態に係る換気扇(送風ファン装置)10の概略構成を示す縦断面図、図2は同換気扇10における係合状態の要部を示す背面図、図3は同換気扇10における解放状態の要部を示す背面図、図4は同換気扇10における要部を一部切欠して示す斜視図である。   FIG. 1 is a longitudinal sectional view showing a schematic configuration of a ventilating fan (blower fan device) 10 according to a first embodiment of the present invention, FIG. 2 is a rear view showing an essential part of the ventilating fan 10 in an engaged state, and FIG. The rear view which shows the principal part of the release state in the ventilation fan 10, FIG. 4 is a perspective view which cuts and shows the principal part in the ventilation fan 10 partially.

換気扇10は、壁等に固定される本体20と、この本体20に着脱自在に取り付けられる送風ファン30とを備えている。   The ventilation fan 10 includes a main body 20 that is fixed to a wall or the like, and a blower fan 30 that is detachably attached to the main body 20.

本体20は、矩形状の外枠21を備えており、この外枠21の室内側にはベルマウス22、室外側には風圧開放式のシャッタ23が取り付けられている。外枠21の中央部には駆動モータ24が取り付けられている。駆動モータ24には、送風ファン30を着脱可能に取り付けられる回転軸25が設けられている。   The main body 20 includes a rectangular outer frame 21. A bell mouth 22 is attached to the indoor side of the outer frame 21, and a wind pressure releasing shutter 23 is attached to the outdoor side. A drive motor 24 is attached to the center of the outer frame 21. The drive motor 24 is provided with a rotating shaft 25 to which the blower fan 30 is detachably attached.

送風ファン30は、円筒状の羽根基部31の外周部に羽根片32を放射状に突設してなるもので羽根基部31の中心部には、回転軸25に嵌合される嵌合孔33aを有した段付円筒状のボス部33が突設されている。図4に示すように、このボス部33の先端面には、凹部(被回転伝達部)34が形成されていて、送風ファン30が回転軸25に装着されると、凹部34が回転軸25に固着したピン(回転伝達部)25aの両端部に係合するように構成されている。そしてこの凹部34とピン25aとの係合により、回転軸25から送風ファン30への回転伝達を行なう機能を有している。   The blower fan 30 is formed by radially projecting blade pieces 32 on the outer peripheral portion of a cylindrical blade base 31, and a fitting hole 33 a fitted to the rotary shaft 25 is formed at the center of the blade base 31. A stepped cylindrical boss portion 33 is provided in a protruding manner. As shown in FIG. 4, a concave portion (rotation transmission portion) 34 is formed on the tip surface of the boss portion 33, and when the blower fan 30 is mounted on the rotary shaft 25, the concave portion 34 is formed on the rotary shaft 25. It is configured to be engaged with both end portions of a pin (rotation transmitting portion) 25a fixed to the head. The engagement between the recess 34 and the pin 25a has a function of transmitting rotation from the rotary shaft 25 to the blower fan 30.

回転軸25は、外周部に係合溝26が形成されており、先端にテーパ状の軸先端25bが形成されている。また、送風ファン30には、平板状の係合部材40と、係合部材40の先端部41に当接する板ばね(ばね部材)50と、板ばね50の両端で板ばね50を係合部材40の長手方向に直交する幅方向の長さよりも大きい間隔で固定する一対の固定部36とが設けられている。   The rotary shaft 25 has an engagement groove 26 formed on the outer peripheral portion, and a tapered shaft tip 25b formed on the tip. The blower fan 30 has a flat plate-like engagement member 40, a leaf spring (spring member) 50 that abuts on the tip 41 of the engagement member 40, and the leaf spring 50 at both ends of the leaf spring 50. A pair of fixing portions 36 that are fixed at an interval larger than the length in the width direction orthogonal to the longitudinal direction of 40 are provided.

図2,3に示すように、係合部材40は、滑らかなテーパ状の先端部41と、係合溝26の断面の直径より大きく、回転軸25の断面の直径より小さい直径を有する円形の孔である係合部分42aと、係合部分42aに対し先端部41の反対側に位置し、回転軸25の断面の直径よりもわずかに大きい直径を有する円形の孔である解放部分42bの一部分とが重なり合った形状を有する係合孔42とを有している。係合孔42の係合部分42aは、係合溝26に係合し回転軸25の軸線方向への移動を規制する。係合孔42の解放部分42bは、回転軸25が容易に挿通する。   As shown in FIGS. 2 and 3, the engagement member 40 is a circular shape having a smooth tapered tip 41 and a diameter larger than the diameter of the cross section of the engagement groove 26 and smaller than the diameter of the cross section of the rotating shaft 25. An engagement portion 42a which is a hole, and a part of a release portion 42b which is a circular hole which is located on the opposite side of the tip portion 41 with respect to the engagement portion 42a and has a diameter slightly larger than the diameter of the cross section of the rotating shaft 25 And an engagement hole 42 having a shape overlapping with each other. The engaging portion 42 a of the engaging hole 42 engages with the engaging groove 26 and restricts the movement of the rotating shaft 25 in the axial direction. The rotating shaft 25 is easily inserted into the release portion 42b of the engagement hole 42.

係合部材40の先端部41と反対側の端部には、プラスチック製の押釦(操作部材)60が設けられている。押釦60は押圧操作を受けると、係合部材40を先端部41方向に移動させる。   A plastic push button (operation member) 60 is provided at the end of the engagement member 40 opposite to the tip 41. When the push button 60 receives a pressing operation, the push member 60 moves the engaging member 40 toward the tip 41.

板ばね50は係合部材40の先端部41に当接しており、先端部41に押圧されると逆方向へ付勢する。   The leaf spring 50 is in contact with the distal end portion 41 of the engaging member 40 and is biased in the reverse direction when pressed by the distal end portion 41.

係合部材40は押釦60の操作等により、係合部分42aが嵌合孔33aと同心上に位置する係合状態と、解放部分42bが嵌合孔33aと同心上に位置する解放状態とに移動する。係合部材40は、通常は板ばね50の付勢により係合状態に位置し、押釦60を押圧操作すると解放状態に移動する。   The engaging member 40 is moved into an engaged state in which the engaging portion 42a is located concentrically with the fitting hole 33a and a released state in which the releasing portion 42b is located concentrically with the fitting hole 33a by operating the push button 60 or the like. Moving. The engaging member 40 is normally positioned in the engaged state by the bias of the leaf spring 50, and moves to the released state when the push button 60 is pressed.

このように構成された本体20と送風ファン30との着脱方法について説明する。送風ファン30の取付時は、押釦60を押圧操作し、係合部材40を解放状態に移動させる。その状態でボス部33側から嵌合孔33aへ回転軸25を挿入してゆく。係合部材40は解放状態にあるので、回転軸25を係合孔42の解放部分42bに容易に挿入することができる。   A method for attaching and detaching the main body 20 and the blower fan 30 thus configured will be described. When the blower fan 30 is attached, the push button 60 is pressed to move the engaging member 40 to the released state. In this state, the rotating shaft 25 is inserted into the fitting hole 33a from the boss portion 33 side. Since the engaging member 40 is in the released state, the rotating shaft 25 can be easily inserted into the releasing portion 42 b of the engaging hole 42.

解放部分42bに回転軸25を挿入し、係合孔42と係合溝26が同位置となった状態で押釦60の押圧操作を解除すると、板ばね50の付勢により係合部材40が係合状態となる。すなわち、係合溝26に係合孔42の係合部分42aが係合する。同時に、凹部34がピン25aの両端部に係合する。これにより、板ばね50の付勢により係合孔42の係合部分42aが係合溝26に係合することで、送風ファン30を回転軸25に抜け止め状態に装着することとなる。   When the rotary shaft 25 is inserted into the release portion 42 b and the pressing operation of the push button 60 is released in a state where the engaging hole 42 and the engaging groove 26 are in the same position, the engaging member 40 is engaged by the urging of the leaf spring 50. It becomes a joint state. That is, the engagement portion 42 a of the engagement hole 42 is engaged with the engagement groove 26. At the same time, the recess 34 engages with both ends of the pin 25a. As a result, the engagement portion 42 a of the engagement hole 42 is engaged with the engagement groove 26 by the urging of the leaf spring 50, so that the blower fan 30 is attached to the rotating shaft 25 in a retaining state.

したがって、係合部材40により、送風ファン30の抜け止めが行なわれる。また、凹部34がピン25aの両端部に係合することにより、回転軸25から送風ファン30への回転伝達が可能となる。   Therefore, the engagement fan 40 prevents the blower fan 30 from coming off. Further, the concave portion 34 engages with both end portions of the pin 25a, so that the rotation transmission from the rotary shaft 25 to the blower fan 30 is possible.

送風ファン30を取り外す際は、押釦60を押圧操作し、係合部材40を解放状態に移動させ、係合部分42aと係合溝26の係合を解除する。回転軸25と係合孔42の解放部分42bが同心上にある状態で送風ファン30を回転軸25の先端方向へ引き抜くことにより、送風ファン30が回転軸25から外れる。   When removing the blower fan 30, the push button 60 is pressed to move the engagement member 40 to the released state, and the engagement between the engagement portion 42a and the engagement groove 26 is released. The blower fan 30 is detached from the rotary shaft 25 by pulling out the blower fan 30 toward the distal end of the rotary shaft 25 in a state where the rotary shaft 25 and the release portion 42b of the engagement hole 42 are concentric.

上述したように係合部材40は平板状の部材であり、その係合部材40に設けられた係合孔42の係合部分42aが係合溝26と係合する。平板状の係合部材40は、線材を用いた場合よりも係合溝26との係り量が安定し多いので、送風ファン30が回転軸25から不用意に脱落することを確実に防止できる。   As described above, the engaging member 40 is a flat plate member, and the engaging portion 42 a of the engaging hole 42 provided in the engaging member 40 engages with the engaging groove 26. Since the engagement amount of the flat engagement member 40 with the engagement groove 26 is more stable than when a wire is used, it is possible to reliably prevent the blower fan 30 from inadvertently falling off the rotating shaft 25.

また、もし上記取付時に係合溝26に係合部分42aが完全に係合していない場合は、押釦60の押圧操作を解除しても係合部分42aの縁が回転軸25又は軸先端25bの外周に当接し、係合部材40は解放状態のままである。すなわち、押釦60は押圧操作している状態と同じく送風ファン30内へ押し込まれた状態で停止しているので、操作者は取付が不完全であることを認識することができ、送風ファン30の回転軸25への取付が確実となる。   Further, if the engaging portion 42a is not completely engaged with the engaging groove 26 at the time of mounting, the edge of the engaging portion 42a remains on the rotary shaft 25 or the shaft tip 25b even if the pressing operation of the push button 60 is released. The engaging member 40 remains in the released state. That is, since the push button 60 is stopped in the state where the push button 60 is pushed into the blower fan 30 as in the case where the push operation is performed, the operator can recognize that the mounting is incomplete. Attachment to the rotating shaft 25 is ensured.

図5は本発明の第2の実施形態に係る換気扇10Aにおける係合部材40の係合孔42を示す正面図である。なお、この図において、図1〜図4と同一機能部分には同一符号を付し、その詳細な説明は省略する。   FIG. 5 is a front view showing the engagement hole 42 of the engagement member 40 in the ventilation fan 10A according to the second embodiment of the present invention. In this figure, the same functional parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

本実施の形態に係る換気扇10Aでは、係合部材40の係合孔42は、係合孔42の係合部分42aと解放部分42bとの間にわたって縁部42cが設けられ、テーパ状となっている形状の孔である。すなわち、係合孔42は、係合部分42a及び解放部分42bが形成する円弧状の縁と、当該縁をつなぐ係合部材40の先端部41方向に向けて細まる縁部42cとにより形成される。   In the ventilation fan 10A according to the present embodiment, the engagement hole 42 of the engagement member 40 is provided with an edge portion 42c between the engagement portion 42a and the release portion 42b of the engagement hole 42, and is tapered. It is a hole with a shape. That is, the engagement hole 42 is formed by an arcuate edge formed by the engagement portion 42a and the release portion 42b and an edge portion 42c that narrows toward the distal end portion 41 of the engagement member 40 that connects the edges. The

本実施の形態に係る換気扇10Aによれば、第1の実施形態と同様に押釦60を押圧操作して係合部材40を解放状態に移動させ送風ファン30を回転軸25に取り付ける方法に加え、次のような方法でも送風ファン30を容易に回転軸25に取り付けることができる。   According to the ventilation fan 10A according to the present embodiment, in addition to the method of pressing the push button 60 to move the engaging member 40 to the released state and attaching the blower fan 30 to the rotating shaft 25 as in the first embodiment, The blower fan 30 can be easily attached to the rotating shaft 25 by the following method.

送風ファン30を回転軸25に取り付けるとき、ボス部33側から送風ファン30の嵌合孔33aを回転軸25に押し込んでゆく。係合部材40は係合状態にあるので、回転軸25を挿入してゆくと、軸先端25bの長手方向半ばの部分が係合部分42aの縁に当接する。その状態でさらに押し込むと、テーパ状の軸先端25bが係合部分42aの縁を係合部材40の先端部41方向に押圧する。板ばね50の弾力以上の力で軸先端25bが係合部分42aの縁を押圧すると、軸先端25bは係合部材40を先端部41方向に移動させる。   When the blower fan 30 is attached to the rotary shaft 25, the fitting hole 33a of the blower fan 30 is pushed into the rotary shaft 25 from the boss portion 33 side. Since the engaging member 40 is in the engaged state, when the rotary shaft 25 is inserted, the middle portion in the longitudinal direction of the shaft tip 25b comes into contact with the edge of the engaging portion 42a. When further pushed in that state, the tapered shaft tip 25b presses the edge of the engaging portion 42a toward the tip 41 of the engaging member 40. When the shaft tip 25b presses the edge of the engaging portion 42a with a force equal to or greater than the elasticity of the leaf spring 50, the shaft tip 25b moves the engaging member 40 toward the tip 41.

係合部材40を解放状態まで移動させ、回転軸25をさらに押し込むと、嵌合孔33a及び回転軸25と同心上にある解放部分42bに回転軸25が挿通される。解放部分42bに回転軸25を挿入し、係合孔42と係合溝26が同位置となると、板ばね50の付勢により係合部材40が係合状態となる。すなわち、係合溝26に係合孔42の係合部分42aが係合する。同時に、凹部34がピン25aの両端部に係合する。これにより、板ばね50の付勢により係合孔42の係合部分42aが係合溝26に係合することで、送風ファン30を回転軸25に抜け止め状態に装着することとなる。   When the engaging member 40 is moved to the released state and the rotating shaft 25 is further pushed in, the rotating shaft 25 is inserted into the release portion 42b concentric with the fitting hole 33a and the rotating shaft 25. When the rotary shaft 25 is inserted into the release portion 42 b and the engagement hole 42 and the engagement groove 26 are in the same position, the engagement member 40 is engaged by the bias of the leaf spring 50. That is, the engagement portion 42 a of the engagement hole 42 is engaged with the engagement groove 26. At the same time, the recess 34 engages with both ends of the pin 25a. As a result, the engagement portion 42 a of the engagement hole 42 is engaged with the engagement groove 26 by the urging of the leaf spring 50, so that the blower fan 30 is attached to the rotating shaft 25 in a retaining state.

このように、送風ファン30を回転軸25に取り付けるとき、送風ファン30を回転軸25に押し込むだけの簡単な操作で係合部分42aが係合溝26に滑らかに係合し、送風ファン30を回転軸25に取り付けることができるため取付作業性が向上する。   As described above, when the blower fan 30 is attached to the rotary shaft 25, the engaging portion 42a smoothly engages with the engagement groove 26 by simply pushing the blower fan 30 into the rotary shaft 25. Since it can be attached to the rotary shaft 25, the attachment workability is improved.

図6は本発明の第3の実施の形態に係る換気扇10Bの係合状態における要部の一部を切欠して示す斜視図、図7は換気扇10Bの非係合状態における要部の一部を切欠して示す斜視図である。なお、これらの図において、図1〜図4と同一機能部分には同一符号を付し、その詳細な説明は省略する。   FIG. 6 is a perspective view showing a cutaway part of the main part in the engaged state of the ventilation fan 10B according to the third embodiment of the present invention, and FIG. 7 is a part of the main part in the non-engaged state of the ventilation fan 10B. It is a perspective view which cuts and shows. In these drawings, the same functional parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

本実施の形態に係る換気扇10Bでは、係合部材40は矩形状の孔である第2の係合孔80を有している。送風ファン30は羽根基部31に設けられた挿通孔38と、第2の係合部材90とを有している。   In the ventilation fan 10B according to the present embodiment, the engagement member 40 has a second engagement hole 80 that is a rectangular hole. The blower fan 30 has an insertion hole 38 provided in the blade base 31 and a second engagement member 90.

第2の係合孔80は、係合状態において第2の係合部材90の直下に位置する場所に設けられている。   The second engagement hole 80 is provided at a position located directly below the second engagement member 90 in the engaged state.

第2の係合部材90は羽根基部31の外側に設けられたつまみ(第2の操作部材)91と、つまみ91から延びて挿通孔38に挿通する軸92と、羽根基部31内において軸92の先端に設けられた係合片93とを有している。係合片93は第2の係合孔80に挿通可能な形状の部材であり、上面93aは第2の係合孔80と同様の矩形である。第2の係合部材90は挿通孔38において、軸92の範囲で長手方向に上下移動可能である。   The second engagement member 90 includes a knob (second operation member) 91 provided outside the blade base 31, a shaft 92 extending from the knob 91 and passing through the insertion hole 38, and a shaft 92 within the blade base 31. And an engagement piece 93 provided at the tip. The engagement piece 93 is a member that can be inserted into the second engagement hole 80, and the upper surface 93 a has a rectangular shape similar to that of the second engagement hole 80. The second engagement member 90 can move up and down in the longitudinal direction within the range of the shaft 92 in the insertion hole 38.

第2の係合部材90は、係合状態において係合片93を第2の係合孔80に挿通可能であり、つまみ91をひねることで軸92を中心軸として回転することが可能である。   In the engaged state, the second engagement member 90 can insert the engagement piece 93 into the second engagement hole 80, and can rotate around the shaft 92 by turning the knob 91. .

本実施の形態に係る換気扇10Bは、送風ファン30と回転軸25とを次のように着脱する。送風ファン30の取付時は、第1の実施形態または第2の実施形態と同様に送風ファン30を回転軸25に取り付けた状態で、係合片93が第2の係合孔80に挿通できる向きにつまみ91を回転させ、第2の係合部材90を押し込む。つまみ91が羽根基部31に当接するまで第2の係合部材90を押し込むと、係合片93が第2の係合孔80に挿通する。   The ventilation fan 10B according to the present embodiment attaches and detaches the blower fan 30 and the rotating shaft 25 as follows. When the blower fan 30 is attached, the engagement piece 93 can be inserted into the second engagement hole 80 in a state where the blower fan 30 is attached to the rotary shaft 25 as in the first embodiment or the second embodiment. The knob 91 is rotated in the direction, and the second engagement member 90 is pushed in. When the second engagement member 90 is pushed in until the knob 91 contacts the blade base 31, the engagement piece 93 is inserted into the second engagement hole 80.

係合片93が第2の係合孔80に挿通した状態でつまみ91を90°回転させると係合片93も回転する。これにより、上面93aが係合部材40に引っかかり、係合片93が第2の係合孔80に係合する。この状態では、係合片93及び軸92が第2の係合孔80に挿通されているので、係合部材40が係合状態で固定される。   When the knob 91 is rotated by 90 ° with the engagement piece 93 inserted through the second engagement hole 80, the engagement piece 93 also rotates. Thereby, the upper surface 93 a is caught by the engaging member 40, and the engaging piece 93 is engaged with the second engaging hole 80. In this state, since the engagement piece 93 and the shaft 92 are inserted through the second engagement hole 80, the engagement member 40 is fixed in the engaged state.

送風ファン30を取り外す際は、係合片93が第2の係合孔80に挿通できる向きにつまみ91を回転させ、第2の係合部材90を引き上げる。第2の係合部材90を引き上げると、係合片93が第2の係合孔80から引き抜かれる。これにより第2の係合部材90と第2の係合孔80の係合が解除されるため、押釦60の押圧操作で係合部材40を解放状態に移動することで、送風ファン30を回転軸25から取り外すことができる。   When removing the blower fan 30, the knob 91 is rotated in a direction in which the engagement piece 93 can be inserted into the second engagement hole 80, and the second engagement member 90 is pulled up. When the second engagement member 90 is pulled up, the engagement piece 93 is pulled out from the second engagement hole 80. As a result, the engagement between the second engagement member 90 and the second engagement hole 80 is released, and thus the blower fan 30 is rotated by moving the engagement member 40 to the released state by the pressing operation of the push button 60. It can be removed from the shaft 25.

また、もし上記取付時に係合溝26に係合部分42aが完全に係合していない場合は、第2の係合孔80が第2の係合部材90の直下とずれた位置にあるので、第2の係合部材90を押し込んでも、係合片93は係合部材40に衝突して止まる。すなわち、つまみ91が羽根基部31から浮いた状態であるため、操作者は取付が不完全であることを認識することができる。   Further, if the engaging portion 42a is not completely engaged with the engaging groove 26 at the time of mounting, the second engaging hole 80 is located at a position shifted from directly below the second engaging member 90. Even if the second engagement member 90 is pushed in, the engagement piece 93 collides with the engagement member 40 and stops. That is, since the knob 91 is in a state of floating from the blade base 31, the operator can recognize that the attachment is incomplete.

これにより、送風ファン30の取付を確実にでき、送風ファン30が回転軸25から不用意に脱落することを確実に防止できる。   Thereby, attachment of the ventilation fan 30 can be ensured and it can prevent reliably that the ventilation fan 30 falls off from the rotating shaft 25 carelessly.

図8は本発明の第4の実施の形態に係る換気扇10Cの係合状態を示す要部の背面図、図9は本発明の第4の実施の形態に係る換気扇10Cの解放状態を示す要部の背面図である。なお、これらの図において、図1〜図4と同一機能部分には同一符号を付し、その詳細な説明は省略する。   FIG. 8 is a rear view of the main part showing the engaged state of the ventilating fan 10C according to the fourth embodiment of the present invention, and FIG. 9 is the main part showing the released state of the ventilating fan 10C according to the fourth embodiment of the present invention. It is a rear view of a part. In these drawings, the same functional parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

送風ファン30には、第1の実施形態における係合部材40に代わる係合機構100と、係合機構100に当接するテーパ部62を有する押釦60とが設けられている。   The blower fan 30 is provided with an engagement mechanism 100 in place of the engagement member 40 in the first embodiment, and a push button 60 having a tapered portion 62 that comes into contact with the engagement mechanism 100.

係合機構100は、第1の切欠105を有する平板状の第1の半係合部材101と、第2の切欠106を有する平板状の第2の半係合部材102と、回転軸25と平行に設けられ第1の半係合部材101及び第2の半係合部材102をそれぞれ回転軸に直交する平面内において開閉運動可能に支持する支点軸103と、第1の半係合部材101と第2の半係合部材102とにわたって設けられたコイルばね104とを有している。   The engagement mechanism 100 includes a flat plate-shaped first half-engagement member 101 having a first cutout 105, a flat plate-shaped second half-engagement member 102 having a second cutout 106, and a rotating shaft 25. A fulcrum shaft 103 that is provided in parallel and supports the first half-engagement member 101 and the second half-engagement member 102 so as to be capable of opening and closing in a plane perpendicular to the rotation axis, and the first half-engagement member 101. And a coil spring 104 provided over the second half-engaging member 102.

第1の半係合部材101及び第2の半係合部材102は、コイルばね104によって第1の半係合部材101及び第2の半係合部材102が閉じる方向にそれぞれ付勢されている。押釦60を押圧操作すると、押釦60のテーパ部62によって第1の半係合部材101及び第2の半係合部材102の間がコイルばね104の付勢力に抗して押し開かれる。第1の半係合部材101及び第2の半係合部材102が押し開かれた状態において、第1の半係合部材101及び第2の半係合部材102の間の隙間は回転軸25が容易に挿通できる広さを有している。   The first half-engagement member 101 and the second half-engagement member 102 are urged by the coil spring 104 in a direction in which the first half-engagement member 101 and the second half-engagement member 102 are closed. . When the push button 60 is pressed, the taper portion 62 of the push button 60 pushes and opens between the first half-engagement member 101 and the second half-engagement member 102 against the biasing force of the coil spring 104. In the state where the first half-engagement member 101 and the second half-engagement member 102 are pushed open, the gap between the first half-engagement member 101 and the second half-engagement member 102 is the rotation shaft 25. Is wide enough to be inserted easily.

第1の切欠105及び第2の切欠106は第1の半係合部材101及び第2の半係合部材102に設けられた半円状の切欠で、第1の半係合部材101及び第2の半係合部材102が閉じた状態において、回転軸25に設けられた係合溝26の断面の直径よりも大きく回転軸25の断面の直径よりも小さい直径を有する円形の孔を形成する切欠である。   The first cutout 105 and the second cutout 106 are semicircular cutouts provided in the first half-engagement member 101 and the second half-engagement member 102. In a state where the two half-engaging members 102 are closed, a circular hole having a diameter larger than the diameter of the cross section of the engaging groove 26 provided in the rotating shaft 25 and smaller than the diameter of the cross section of the rotating shaft 25 is formed. It is a notch.

係合機構100の第1の半係合部材101及び第2の半係合部材102は押釦60の操作等により、第1の半係合部材101及び第2の半係合部材102が閉じている係合状態と、第1の半係合部材101及び第2の半係合部材102が押し開かれている解放状態とに移動する。係合機構100は、通常はコイルばね104の付勢により係合状態に位置し、押釦60を押圧操作すると解放状態に移動する。   The first half-engagement member 101 and the second half-engagement member 102 of the engagement mechanism 100 are closed by the operation of the push button 60 or the like. And the released state in which the first half-engagement member 101 and the second half-engagement member 102 are pushed open. The engagement mechanism 100 is normally positioned in the engaged state by the bias of the coil spring 104, and moves to the released state when the push button 60 is pressed.

このように構成された回転軸25と送風ファン30との着脱方法について説明する。送風ファン30の取付時は、押釦60を押圧操作し、係合機構100の第1の半係合部材101及び第2の半係合部材102を解放状態に移動させる。その状態でボス部33側から嵌合孔33aへ回転軸25を挿通してゆく。係合機構100は解放状態にあるので、回転軸25を第1の半係合部材101及び第2の半係合部材102の間の隙間に容易に挿通することができる。   A method for attaching and detaching the rotary shaft 25 and the blower fan 30 configured as described above will be described. When the blower fan 30 is attached, the push button 60 is pressed to move the first half-engagement member 101 and the second half-engagement member 102 of the engagement mechanism 100 to the released state. In this state, the rotating shaft 25 is inserted from the boss 33 side into the fitting hole 33a. Since the engagement mechanism 100 is in the released state, the rotating shaft 25 can be easily inserted into the gap between the first half-engagement member 101 and the second half-engagement member 102.

第1の半係合部材101及び第2の半係合部材102の間の隙間に回転軸25を挿通し、第1の切欠105及び第2の切欠106と係合溝26が同位置となった状態で押釦60の押圧操作を解除すると、コイルばね104の付勢により第1の半係合部材101及び第2の半係合部材102が係合状態となる。すなわち、係合溝26に第1の切欠105及び第2の切欠106が係合する。同時に、凹部34がピン25aの両端部に係合する。   The rotary shaft 25 is inserted into the gap between the first half-engagement member 101 and the second half-engagement member 102, and the first notch 105, the second notch 106, and the engagement groove 26 are in the same position. When the pressing operation of the push button 60 is released in the state where the first half-engaging member 101 and the second half-engaging member 102 are engaged, the coil spring 104 is biased. That is, the first notch 105 and the second notch 106 are engaged with the engaging groove 26. At the same time, the recess 34 engages with both ends of the pin 25a.

これにより、コイルばね104の付勢により第1の半係合部材101及び第2の半係合部材102が係合溝26に係合することで、送風ファン30を回転軸25に抜け止め状態に装着することとなる。   As a result, the first half-engaging member 101 and the second half-engaging member 102 are engaged with the engaging groove 26 by the bias of the coil spring 104, so that the blower fan 30 is prevented from being detached from the rotating shaft 25. It will be attached to.

したがって、係合機構100により、送風ファン30の抜け止めが行なわれる。また、凹部34がピン25aの両端部に係合することにより、回転軸25から送風ファン30への回転伝達が可能となる。   Therefore, the engagement mechanism 100 prevents the blower fan 30 from coming off. Further, the concave portion 34 engages with both end portions of the pin 25a, so that the rotation transmission from the rotary shaft 25 to the blower fan 30 is possible.

送風ファン30を取り外す際は、押釦60を押圧操作し、係合機構100の第1の半係合部材101及び第2の半係合部材102を解放状態に移動させ、第1の切欠105及び第2の切欠106と係合溝26の係合を解除する。第1の半係合部材101及び第2の半係合部材102が押し開かれた状態で送風ファン30を回転軸25の先端方向へ引き抜くことにより送風ファン30が回転軸25から外れる。   When removing the blower fan 30, the push button 60 is pressed to move the first half-engagement member 101 and the second half-engagement member 102 of the engagement mechanism 100 to the released state, and the first notch 105 and The engagement between the second notch 106 and the engagement groove 26 is released. With the first half-engagement member 101 and the second half-engagement member 102 pushed and opened, the blower fan 30 is detached from the rotary shaft 25 by pulling the blower fan 30 toward the distal end of the rotary shaft 25.

上述したように第1の半係合部材101及び第2の半係合部材102は平板状の部材であり、その第1の半係合部材101及び第2の半係合部材102に設けられた第1の切欠105及び第2の切欠106が係合溝26に係合する。第1の切欠105及び第2の切欠106は係合溝26の全周面にわたって係合溝26と係合しているので、線材を用いた場合よりも係合溝26との係り量が安定して多いので、送風ファン30が回転軸25から不用意に脱落することを確実に防止することができる。   As described above, the first half-engagement member 101 and the second half-engagement member 102 are flat members, and are provided on the first half-engagement member 101 and the second half-engagement member 102. The first notch 105 and the second notch 106 engage with the engaging groove 26. Since the first notch 105 and the second notch 106 are engaged with the engagement groove 26 over the entire circumferential surface of the engagement groove 26, the amount of engagement with the engagement groove 26 is more stable than when a wire is used. Therefore, it is possible to reliably prevent the blower fan 30 from inadvertently falling off the rotating shaft 25.

なお、本発明は前記実施形態に限定されるものではない。例えば前記実施形態では送風ファン装置として換気扇について説明したが、本発明は扇風機にも適用することができる。   In addition, this invention is not limited to the said embodiment. For example, although the ventilation fan was demonstrated as a ventilation fan apparatus in the said embodiment, this invention is applicable also to a fan.

この他、本発明の要旨を逸脱しない範囲で種々変形実施可能であるのは勿論である。 Of course, various modifications can be made without departing from the scope of the present invention.

本発明の第1の実施の形態に係る換気扇の概略構成を示す縦断面図。The longitudinal cross-sectional view which shows schematic structure of the ventilation fan which concerns on the 1st Embodiment of this invention. 同換気扇の係合状態における要部を示す背面図。The rear view which shows the principal part in the engagement state of the ventilation fan. 同換気扇の解放状態における要部を示す背面図。The rear view which shows the principal part in the open state of the ventilation fan. 同換気扇の要部の斜視断面図。The perspective sectional view of the important section of the ventilation fan. 本発明の第2の実施形態における係合部材を示す正面図。The front view which shows the engaging member in the 2nd Embodiment of this invention. 本発明の第3の実施形態において係合状態における要部の斜視図。The perspective view of the principal part in the engagement state in the 3rd Embodiment of this invention. 同換気扇の非係合状態における要部を示す斜視図。The perspective view which shows the principal part in the non-engagement state of the ventilation fan. 本発明の第4の実施形態において係合状態における要部の背面図。The rear view of the principal part in the engagement state in the 4th Embodiment of this invention. 同換気扇の解放状態における要部の背面図。The rear view of the principal part in the open state of the ventilation fan. 従来の換気扇を示す縦断面図。The longitudinal cross-sectional view which shows the conventional ventilation fan. 同換気扇の要部を示す背面図。The rear view which shows the principal part of the ventilation fan.

符号の説明Explanation of symbols

10…換気扇,25…回転軸,26…係合溝,30…送風ファン,40…係合部材,42…係合孔,50…板ばね,60…押釦。   DESCRIPTION OF SYMBOLS 10 ... Ventilation fan, 25 ... Rotating shaft, 26 ... Engagement groove, 30 ... Blower fan, 40 ... Engagement member, 42 ... Engagement hole, 50 ... Leaf spring, 60 ... Push button

Claims (4)

回転軸に送風ファンを着脱自在に取り付ける送風ファン装置において、
前記回転軸に設けられた回転伝達部と、
前記回転軸の外周部に形成した係合溝と、
前記送風ファンに設けられ、前記回転軸への挿入により前記回転伝達部に係合する被回転伝達部と、
前記回転軸と直交して前記送風ファンに設けられた平板状の係合部材と、
前記係合部材に設けられ、前記係合溝に係合して前記送風ファンの抜け止めをなす係合孔と、
前記係合部材の先端側に配置されたばね部材と、
押圧操作により前記係合部材を前記ばね部材の付勢力に抗して前記係合部材の回転軸に直交する方向に移動させ、前記係合孔と前記係合溝との係合を解除する操作部材とを具備することを特徴とする送風ファン装置。
In the blower fan device that detachably attaches the blower fan to the rotating shaft,
A rotation transmitting portion provided on the rotating shaft;
An engaging groove formed on the outer periphery of the rotating shaft;
A rotation transmission part which is provided in the blower fan and engages with the rotation transmission part by insertion into the rotation shaft;
A flat engagement member provided in the blower fan perpendicular to the rotation axis;
An engagement hole provided in the engagement member and engaged with the engagement groove to prevent the blower fan from coming off;
A spring member disposed on the distal end side of the engaging member;
An operation of releasing the engagement between the engagement hole and the engagement groove by moving the engagement member in a direction orthogonal to the rotation axis of the engagement member against the urging force of the spring member by a pressing operation. A blower fan device comprising: a member.
前記係合部材の前記係合孔が、前記係合部材の先端方向に向けて細まるテーパ形状であることを特徴とする請求項1に記載の送風ファン装置。   The blower fan device according to claim 1, wherein the engagement hole of the engagement member has a tapered shape that narrows toward a distal end direction of the engagement member. 前記係合部材に設けられた第2の係合孔と、
前記送風ファンに設けられ、前記第2の係合孔と係合する第2の係合部材と、
前記第2の係合部材に設けられ、前記係合部材が抜け止めをなしている状態で操作により前記第2の係合孔に前記第2の係合部材を係合させる第2の操作部材とを具備することを特徴とする請求項1に記載の送風ファン装置。
A second engagement hole provided in the engagement member;
A second engagement member provided on the blower fan and engaged with the second engagement hole;
A second operating member provided on the second engaging member, wherein the second engaging member is engaged with the second engaging hole by an operation in a state where the engaging member is prevented from coming off. The blower fan device according to claim 1, comprising:
回転軸に送風ファンを着脱自在に取り付ける送風ファン装置において、
前記回転軸に設けられた回転伝達部と、
前記回転軸の外周部に形成した係合溝と、
前記送風ファンに設けられ、前記回転軸への挿入により前記回転伝達部に係合する被回転伝達部と、
前記回転軸と平行に設けられた支点軸を回動軸として開閉動作する平板状の第1の半係合部材及び平板状の第2の半係合部材と、
前記第1の半係合部材の前記第2の半係合部材側に設けられ、前記係合溝に係合して前記送風ファンの抜け止めをなす第1の切欠と、
前記第2の半係合部材の前記第1の半係合部材側に設けられ、前記係合溝に係合して前記送風ファンの抜け止めをなす第2の切欠と、
前記第1の半係合部材と前記第2の半係合部材とにわたって設けられ、前記第1の半係合部材及び前記第2の半係合部材を閉じる方向に付勢するばね部材と、
押圧操作により閉じた状態の前記第1の半係合部材及び前記第2の半係合部材を前記ばね部材の付勢力に抗して開き、前記第1の切欠及び前記第2の切欠を前記回転軸の前記係合溝から外す操作部材とを具備したことを特徴とする送風ファン装置。
In the blower fan device that detachably attaches the blower fan to the rotating shaft,
A rotation transmitting portion provided on the rotating shaft;
An engaging groove formed on the outer periphery of the rotating shaft;
A rotation transmission part which is provided in the blower fan and engages with the rotation transmission part by insertion into the rotation shaft;
A flat plate-like first half-engagement member and a flat plate-like second half-engagement member that open and close using a fulcrum shaft provided parallel to the rotation shaft as a rotation shaft;
A first notch that is provided on the second half-engaging member side of the first half-engaging member, engages with the engaging groove, and prevents the blower fan from coming off;
A second notch that is provided on the first half-engagement member side of the second half-engagement member and engages with the engagement groove to prevent the blower fan from coming off;
A spring member provided across the first half-engagement member and the second half-engagement member and biasing the first half-engagement member and the second half-engagement member in a closing direction;
The first half-engagement member and the second half-engagement member closed by a pressing operation are opened against the urging force of the spring member, and the first notch and the second notch are opened. An air blower device comprising an operation member for removing the engaging shaft from the engaging groove.
JP2008214446A 2008-08-22 2008-08-22 Blast fan device Withdrawn JP2010048203A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012026471A1 (en) * 2010-08-24 2012-03-01 富士工業株式会社 One-touch fitting device for fan
JP2013224600A (en) * 2012-04-20 2013-10-31 Watanabe Seisakusho:Kk Fan removing device
JP2014214889A (en) * 2013-04-22 2014-11-17 富士工業株式会社 Attaching/detaching structure and range hood
JP2014240740A (en) * 2013-06-12 2014-12-25 富士工業株式会社 Detachable structure and range hood
JP2020020484A (en) * 2018-07-30 2020-02-06 株式会社ハーマン Range hood

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012026471A1 (en) * 2010-08-24 2012-03-01 富士工業株式会社 One-touch fitting device for fan
CN103228927A (en) * 2010-08-24 2013-07-31 富士工业株式会社 One-touch fitting device for fan
KR20130124481A (en) * 2010-08-24 2013-11-14 후지 인더스트리얼 컴퍼니 리미티드 One-touch fitting device for fan
JP5728481B2 (en) * 2010-08-24 2015-06-03 富士工業株式会社 One-touch fan attachment / detachment device
KR101685054B1 (en) 2010-08-24 2016-12-09 후지 인더스트리얼 컴퍼니 리미티드 One-touch fitting device for fan
JP2013224600A (en) * 2012-04-20 2013-10-31 Watanabe Seisakusho:Kk Fan removing device
JP2014214889A (en) * 2013-04-22 2014-11-17 富士工業株式会社 Attaching/detaching structure and range hood
JP2014240740A (en) * 2013-06-12 2014-12-25 富士工業株式会社 Detachable structure and range hood
JP2020020484A (en) * 2018-07-30 2020-02-06 株式会社ハーマン Range hood
JP7092593B2 (en) 2018-07-30 2022-06-28 株式会社ハーマン Range food

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