JP2018177488A - Hoist device - Google Patents
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本発明は、牽引部材を電動又は手動により巻き上げて(巻き取って)及び/又は繰り降ろして(繰り出して)対象物を昇降させるための巻き上げ装置に関する。 The present invention relates to a hoisting apparatus for hoisting (rolling up) and / or rolling down (pulling out) a traction member by electric or manual operation to raise and lower an object.
モータの駆動力や手動の力を利用して寝具、梱包類、仮設足場、建造物、漁労具等の対象物を所定位置まで巻き上げたり、降ろしたりする巻き上げ装置は従来から一般的に知られている(例えば、特許文献1参照)。 A hoisting device that rolls up and lowers objects such as bedding, packing materials, temporary scaffolds, buildings, fishing tackles and the like to a predetermined position by using the driving force of a motor and manual force has been generally known conventionally. (See, for example, Patent Document 1).
また、魚釣りの分野でも、巻き上げ装置として魚釣用リールが多く使用されている現状にある(例えば、特許文献2参照)。 In addition, in the field of fishing as well, fishing reels are often used as a winding device (see, for example, Patent Document 2).
このような様々なタイプの巻き上げ装置は、電動又は手動による駆動力を用いて対象物を最適な状態で巻き上げて降ろすことができるようにする様々な機構を組み込んでいる。 These various types of hoisting devices incorporate various mechanisms that allow the objects to be optimally hoisted and unloaded using motorized or manual driving forces.
例えば、特許文献1に開示される巻上げ機は、モータにより回転される駆動軸と、牽引部材を巻回するためのドラムを回転させる出力軸との間に、駆動軸側の駆動ギヤと出力軸側の従動ギヤとを噛合させて成る動力伝達歯車を介在させるとともに、従動ギヤをネジ機構により出力軸に対して相対回転且つ軸方向に移動可能に設けることにより駆動軸及び/又は出力軸の回転で従動ギアをブレーキ受材に対して接離可能にしてブレーキ力を選択的に生起させるブレーキ装置と、一方向の回転のみを許容するラチェット機構との組み合わせにより、モータの無通電時に過大な力によって対象物が落下してしまわないように対象物を所定位置に保持するようにしている(対象物の不要な落下を防止している)。 For example, the winding machine disclosed in Patent Document 1 includes a drive gear on the drive shaft side and an output shaft between a drive shaft rotated by a motor and an output shaft for rotating a drum for winding the pulling member. Rotation of the drive shaft and / or the output shaft by interposing a power transmission gear formed by meshing with the driven gear on the side, and providing the driven gear rotatably relative to the output shaft and axially movable by a screw mechanism The combination of a brake device that allows the driven gear to move in and out of the brake support to selectively generate a braking force and a ratchet mechanism that allows only one-way rotation allows excessive power when the motor is de-energized. The object is held at a predetermined position so that the object does not fall off (the unnecessary fall of the object is prevented).
一方、特許文献2に開示される電動リールは、モータの巻き取り動力を減速機構(遊星歯車機構)を介してスプールに伝達するモータ動力伝達経路と、モータからスプールへの動力の伝達を遮断してスプールをフリー回転状態とすることにより釣糸の繰り出しを可能にするモータ動力遮断経路との両経路を手動又は電動により切り換えるためのクラッチ機構を備えている。 On the other hand, the electric reel disclosed in Patent Document 2 shuts off the transmission of power from the motor to the spool and the motor power transmission path for transmitting the winding power of the motor to the spool via the reduction mechanism (planet gear mechanism). A clutch mechanism is provided for manually or electrically switching between both the motor power cutoff path and the motor power cutoff path that enables the fishing line to be drawn out by setting the spool to free rotation.
しかしながら、特許文献1に開示される巻上げ機は、モータの正逆回転により巻き上げ及び降ろし作業を可能にしつつ対象物の不要な落下を防止できるものの、駆動軸、出力軸、動力伝達歯車、及び、ブレーキ装置といった動力伝達機構がドラムの側方に並設されており、したがって、装置全体の軸方向寸法が大きくなる。そのため、例えば巻上げ機を必要とする様々な機器、装置等に対してコンパクトに組み込むことが難しい。 However, although the winding machine disclosed in Patent Document 1 can prevent the unnecessary dropping of the object while enabling the winding and lowering operations by forward and reverse rotation of the motor, the drive shaft, the output shaft, the power transmission gear, and Power transmission mechanisms, such as braking devices, are juxtaposed laterally of the drum, thus increasing the axial dimension of the entire device. Therefore, for example, it is difficult to be compactly incorporated into various devices, devices and the like which require a hoist.
これに対し、前述した特許文献2に開示される電動リールは、遊星歯車機構を利用しながら動力伝達機構を軸方向でコンパクトに収める構造を実現しているが、対象物(錘や仕掛け等)を巻き上げたり降ろしたりするためにクラッチ機構が手動又は電動により動力伝達状態と動力遮断状態とに切り換えられるこの電動リールにおいて、特許文献1に開示されるように対象物の不要な落下(スプールの逆転)を防止するためには、クラッチ機構に加えて逆止機構等を更に付加して設ける必要がある。そのため、電動巻き上げ装置全体が必然的に大型化及び重量化するだけでなく、構造も複雑化し、また、スペースに制約があるハウジング内に様々な前記機構を配設しなければならないことから、組み込み性及びメンテナンス性も悪くなる。 On the other hand, the electric reel disclosed in Patent Document 2 described above realizes a structure in which the power transmission mechanism is compactly accommodated in the axial direction while utilizing a planetary gear mechanism, but an object (a weight, a tackle, etc.) In this motorized reel in which the clutch mechanism is switched between the power transmission state and the power cut-off state manually or electrically to wind up and down the object, as described in Patent Document 1, unnecessary dropping of the object (reverse rotation of the spool In addition to the clutch mechanism, it is necessary to additionally provide a non-return mechanism etc. in order to prevent. Therefore, not only the overall size of the motorized hoisting apparatus is necessarily increased in size and weight, but also the structure is complicated, and various built-in mechanisms must be disposed in the space-constrained housing. Also, the quality and maintainability deteriorate.
また、この特許文献2に開示される電動リールでは、前記クラッチ機構の動力の伝達/分離操作を介して対象物の巻き上げ及び降ろし作業が行なわれるため、現場状況に適した条件で、タイムリーに、連続的且つ迅速に巻き上げ及び降ろし作業を効率的に行なうことが難しい。 Further, in the motor driven reel disclosed in this patent document 2, the work of rolling up and unloading the object is performed through the transmission / separation operation of the power of the clutch mechanism, and therefore timely under the conditions suitable for the field situation. It is difficult to efficiently and efficiently perform winding and unloading operations continuously and quickly.
本発明は、上記した問題に着目してなされたものであり、装置全体の構造の簡素化及び小型・軽量化を図りつつ、対象物の不要な落下を防止する或いは最小限に抑えることができるとともに、タイムリーに連続的且つ迅速に巻き上げ及び降ろし作業を効率的に行なえる巻き上げ装置を提供することを目的とする。 The present invention has been made in view of the above-described problems, and it is possible to prevent or minimize unnecessary dropping of an object while simplifying the structure of the entire device and reducing the size and weight. It is another object of the present invention to provide a hoisting device capable of efficiently performing hoisting and lowering operations timely and continuously and quickly.
上記目的を達成するために、本発明の巻き上げ装置は、装置本体に設けられ、回転駆動力を生起するための駆動力源と、前記装置本体に回転可能に支持され、巻き上げ対象物を牽引するための牽引部材が巻回される回転体と、前記駆動力源から駆動力が入力される入力部材と、前記入力部材から駆動力を受けて該駆動力を前記回転体に出力する出力部材と、一方向の回転のみが許容されて他方向の回転が阻止される回転規制部と、前記入力部材と前記出力部材とを部分的な相対回動を可能にしつつ一体回転可能に連結し、前記出力部材に対する前記入力部材の第1の方向の前記相対回動によって軸方向に突出して前記回転規制部と係合することにより前記入力部材及び前記出力部材を前記回転規制部に一体回転可能に結合させるとともに、前記出力部材に対する前記入力部材の前記第1の方向と反対の第2の方向の相対回動によって前記回転規制部から軸方向に離間することにより前記入力部材と前記出力部材とを前記回転規制部から切り離すカム機構とを備えることを特徴とする。 In order to achieve the above object, the winding device of the present invention is provided in a device body, and a driving force source for generating a rotational driving force, and rotatably supported by the device body to pull a winding object A rotating member around which a traction member is wound, an input member to which a driving force is input from the driving force source, and an output member receiving the driving force from the input member and outputting the driving force to the rotating member A rotation restricting portion in which only rotation in one direction is permitted and rotation in the other direction is blocked, and the input member and the output member are integrally rotatably coupled while allowing relative rotation of the part, The input member and the output member are coupled to the rotation restricting portion so as to be integrally rotatable by projecting in the axial direction by the relative rotation of the input member with respect to the output member in the first direction and engaging with the rotation restricting portion. As well as before The input member and the output member are separated from the rotation restricting portion by being axially separated from the rotation restricting portion by relative rotation of the input member relative to the output member in a second direction opposite to the first direction. And a cam mechanism for separating.
上記構成によれば、駆動力源から第1の方向(回転方向)の回転駆動力が入力部材に入力されて入力部材が出力部材に対して第1の方向に相対回動されると、カム機構が軸方向に突出して回転規制部と係合し、入力部材及び出力部材が回転規制部と一体回転可能に結合される。そのため、この回転方向で回転規制部の回転が許容されるように設定しておく(この回転方向(第1の方向)を回転規制部の前記一方向に設定しておく)ことにより、入力部材及び出力部材が回転規制部と一体で回転して、出力部材の回転が回転体に伝わり、回転体を第1の方向に回転させることができる。 According to the above configuration, when the rotational driving force in the first direction (rotational direction) is input to the input member from the driving force source and the input member is relatively rotated in the first direction with respect to the output member, the cam A mechanism protrudes axially to engage with the rotation restricting portion, and the input member and the output member are integrally rotatably coupled to the rotation restricting portion. Therefore, the input member is set such that the rotation of the rotation restricting portion is allowed in this rotation direction (the rotation direction (first direction) is set to the one direction of the rotation restricting portion). The output member rotates integrally with the rotation restricting portion, the rotation of the output member is transmitted to the rotating body, and the rotating body can be rotated in the first direction.
一方、駆動力源から先と反対の第2の方向(回転方向)の回転駆動力が入力部材に入力されて入力部材が出力部材に対して第2の方向に相対回動されると、カム機構が回転規制部から軸方向に離間することにより入力部材と出力部材とが回転規制部から切り離されて回転されるため、この回転方向が回転規制部を回転不能な前記他方向に回転させようとする方向であるにもかかわらず、入力部材及び出力部材は、回転規制部とは無関係に自由に一体回転して、その回転を回転体に伝えて、回転体を第2の方向に回転させることができる。 On the other hand, when the rotational driving force in the second direction (rotational direction) opposite to the previous direction from the driving force source is input to the input member and the input member is rotated relative to the output member in the second direction, the cam Since the input member and the output member are separated and rotated from the rotation restricting portion by axially separating the mechanism from the rotation restricting portion, this rotation direction causes the rotation restricting portion to rotate in the other direction that can not rotate. In spite of the direction, the input member and the output member freely rotate together integrally regardless of the rotation restricting portion, transmit the rotation to the rotating body, and rotate the rotating body in the second direction. be able to.
これに対し、駆動力源から入力部材への回転駆動力の入力が停止された状態で、回転体が第2の方向に回転して、出力部材が入力部材に対して第2の方向に相対回転されると、入力部材は出力部材に対して第1の方向に相対回動される形となることから、カム機構が軸方向に突出して回転規制部と係合し、入力部材及び出力部材が回転規制部と一体回転可能に結合される。このとき、回転規制部の先の回転設定によれば、回転規制部は第2の方向、すなわち、前記他方向に回転されようとするが、回転規制部はこの方向の回転が阻止されているため、出力部材及び回転体はそれ以上(すなわち、入力部材と出力部材との相対許容回動量以上)回転しない(入力部材と出力部材との相対許容回動量は、極力小さく設定されることが好ましい)。 On the other hand, when the input of the rotational driving force from the driving force source to the input member is stopped, the rotating body rotates in the second direction, and the output member is relative to the input member in the second direction. When rotated, the input member is relatively rotated in the first direction with respect to the output member, so that the cam mechanism axially protrudes and engages with the rotation restricting portion, and the input member and the output member Is rotatably coupled to the rotation restricting portion. At this time, according to the previous rotation setting of the rotation restricting portion, the rotation restricting portion tries to be rotated in the second direction, that is, the other direction, but the rotation restricting portion is prevented from rotating in this direction. Therefore, it is preferable that the relative allowable rotation amount between the input member and the output member is set as small as possible without the output member and the rotary body rotating more than that (that is, the relative allowable rotation amount between the input member and the output member). ).
したがって、このような回転作動形態では、前記第1の方向を回転体の巻き取り方向(牽引部材を回転体に対して巻き取る方向)に設定し、前記第2の方向を回転体の繰り出し方向(牽引部材を回転体から繰り出す方向)に設定すれば、駆動力源側からの正逆回転に応じて回転体を牽引部材の巻き取り方向及び繰り出し方向に回転可能にするとともに、駆動力源側からの駆動力入力停止時に回転体の繰り出し方向の回転を阻止して対象物の不要な落下を防止する或いは最小限に抑えることができる。 Therefore, in such a rotational operation mode, the first direction is set to the winding direction of the rotating body (the direction in which the pulling member is wound relative to the rotating body), and the second direction is the unwinding direction of the rotating body When the pulling member is set in the direction in which the pulling member is pulled out from the rotating body, the rotating body can be rotated in the winding direction and the drawing direction of the pulling member according to forward and reverse rotation from the driving force source side. It is possible to prevent or minimize unnecessary dropping of the object by blocking rotation of the rotating body in the direction of extension when the driving force input from the vehicle is stopped.
このため、上記構成では、入力部材から出力部材へ力が伝えられる状態でカム機構が回転規制部に係合すると、回転規制部に前記一方向で回転力が伝えられ、出力部材から入力部材へ力が伝えられる状態でカム機構が回転規制部に係合すると、回転規制部に前記他方向で回転力が伝えられるようになっていること好ましい。 Therefore, in the above configuration, when the cam mechanism engages with the rotation restricting portion in a state where the force is transmitted from the input member to the output member, the rotational force is transmitted to the rotation restricting portion in one direction, and the output member to the input member Preferably, when the cam mechanism engages with the rotation restricting portion in a state in which the force is transmitted, a rotational force is transmitted to the rotation restricting portion in the other direction.
このように、上記構成では、カム機構が、入力部材と出力部材とを連結させる(入力部材と出力部材との間で回転力を伝達する)機能、並びに、入力部材及び出力部材と回転規制部とを係脱可能に係合させる(対象物の不要な落下を防止する)機能の両方の機能を兼ね備えているため、部品点数を少なくして巻き上げ装置のコンパクト化を容易に図ることができる(巻き上げ装置全体の構造の簡素化及び小型・軽量化を図ることができる)。しかも、カム機構のこのような兼用構造によれば、コンパクト化に影響を及ぼすことなく入力部材に内歯車を形成してそこに遊星歯車を組み込むことも可能になるため、巻き上げ装置の軸方向寸法を小さく抑えて、巻き上げ装置を必要とする様々な機器、装置等に対してコンパクトに組み込むことも可能になる。 As described above, in the above configuration, the cam mechanism has a function to connect the input member and the output member (transfer the rotational force between the input member and the output member), and the input member, the output member, and the rotation restricting portion. And the function of both engaging and disengaging (preventing unnecessary dropping of the object), the number of parts can be reduced and the winding apparatus can be easily made compact ( The structure of the entire hoisting apparatus can be simplified and reduced in size and weight. Moreover, according to such a combined structure of the cam mechanism, since it becomes possible to form an internal gear on the input member and to incorporate a planetary gear therein without affecting the compactification, the axial dimension of the winding device Can be compactly incorporated into various devices, devices and the like which require a hoisting device.
なお、このようなカム機構による装置の小型化を有効に図るとともに、組み立て性の向上も図るため、カム機構は、入力部材及び出力部材のうちの一方側に設けられるカム溝と、入力部材及び出力部材のうちの他方側に設けられて、カム溝に係合するとともに、径方向外側から他方側に取り付け可能なフォロワとを有することが好ましい。 The cam mechanism includes a cam groove provided on one side of the input member and the output member, an input member, and a cam mechanism, in order to effectively miniaturize the apparatus by such a cam mechanism and to improve the assembling property. It is preferable to have a follower provided on the other side of the output member and engaged with the cam groove and attachable from the radially outer side to the other side.
また、上記構成によれば、前述したように駆動力源側からの正逆回転に応じて回転体を牽引部材の巻き取り方向及び繰り出し方向に回転可能にするとともに、駆動力源側からの駆動力入力停止時に回転体の回転を阻止して牽引部材の繰り出しを防止するため、動力伝達状態を切り換えるクラッチ機構を不要としながらも、両回転方向の駆動力を利用する巻き上げ及び繰り出しの動力伝達の効果的制御の実現を図って、対象物の不要な落下を防止できる。また、クラッチ機構による動力伝達状態の切り換え操作が不要になるため、タイムリーに連続的且つ迅速に巻き上げ及び降ろし作業を効率的に行なえる。 Further, according to the above configuration, as described above, the rotating body can be rotated in the winding direction and the unwinding direction of the pulling member according to the forward and reverse rotation from the driving power source side, and the driving from the driving power source side In order to prevent the rotation of the rotating body at the time of force input stop and prevent the extension of the pulling member, it is not necessary to use a clutch mechanism for switching the power transmission state, but the power transmission of winding and unwinding using driving force in both rotational directions By realizing effective control, it is possible to prevent unnecessary dropping of the object. In addition, since the switching operation of the power transmission state by the clutch mechanism is not necessary, the winding and lowering operations can be performed efficiently and continuously and quickly.
なお、上記構成の巻き上げ装置は、寝具、梱包類、仮設足場、建造物、漁労具等の対象物を所定位置まで巻き上げたり、降ろしたりするために使用できるほか、魚釣用のリールとして使用することもでき、更には、ドローンに搭載してドローンから荷物を降ろし或いは上空のドローンへと荷物を巻き上げるなど、その適用分野は限定されない。また、駆動力源は、電動及び手動の両方を含むことができる。 In addition, in addition to being used to roll up and down objects such as bedding, packages, temporary scaffoldings, buildings, fishing tackles, etc., the roll-up device of the above configuration is used as a fishing reel Furthermore, the application field is not limited, such as loading the drone and unloading the package from the drone or rolling up the package to the sky drone. Also, the driving force source can include both electric and manual.
本発明によれば、装置全体の構造の簡素化及び小型・軽量化を図りつつ、対象物の不要な落下を防止する或いは最小限に抑えることができるとともに、タイムリーに連続的且つ迅速に巻き上げ及び降ろし作業を効率的に行なえる巻き上げ装置が得られる。 According to the present invention, it is possible to prevent or minimize unnecessary dropping of the object while simplifying and reducing the size and weight of the entire structure of the device, and winding up continuously and quickly in a timely manner. And a hoisting device capable of efficiently performing the unloading operation.
以下、添付図面を参照しながら、本発明に係る巻き上げ装置の一実施形態について具体的に説明する。
図1及び図2に示されるように、本実施形態に係る巻き上げ装置1は、回転駆動力を生起するための駆動力源としての電動モータ2と、巻き上げ対象物を牽引するための牽引部材(図示せず)が巻回される筒状の回転体4とを収容保持する装置本体としてのハウジング6を備える。この場合、回転体4は、軸受8を介してハウジング6に回転可能に支持され、また、電動モータ2は、モータハウジング2Aに収容された状態で筒状の回転体4の内側に回転不能に支持固定されており、例えばハウジング6に着脱自在な図示しないバッテリ等により駆動されてもよい。
Hereinafter, one embodiment of a hoist according to the present invention will be described in detail with reference to the attached drawings.
As shown in FIG. 1 and FIG. 2, the hoisting device 1 according to the present embodiment includes an electric motor 2 as a driving force source for generating a rotational driving force, and a pulling member for pulling an object to be hoisted A housing 6 is provided as an apparatus main body that accommodates and holds a cylindrical rotating body 4 around which the cylindrical rotating body 4 is wound. In this case, the rotating body 4 is rotatably supported by the housing 6 via the bearing 8, and the electric motor 2 can not rotate inside the cylindrical rotating body 4 in a state accommodated in the motor housing 2A. It may be supported and fixed, and may be driven by, for example, a battery (not shown) that can be attached to and detached from the housing 6.
なお、前記牽引部材としては、巻き上げ装置1の用途に応じて、ワイヤ、チェーン、ロープ、釣糸等を挙げることができる。また、回転体4は、例えば巻き上げ装置1が魚釣用電動リールとして使用される場合には、釣糸が巻回されるスプールに対応する。 In addition, according to the use of the winding apparatus 1, a wire, a chain, a rope, a fishing line etc. can be mentioned as said pulling member. The rotating body 4 corresponds to, for example, a spool around which a fishing line is wound when the winding device 1 is used as a fishing electric reel.
また、電動モータ2及び回転体4は、動力伝達機構(動力伝達経路)10によって互いに動力伝達可能に連結されている。この場合、動力伝達機構10は、電動モータ2の回転を回転体4側に伝達するが回転体4の回転を電動モータ2側に伝達しないようになっており、電動モータ2から回転駆動力が入力される入力部材40と、入力部材40から駆動力を受けて該駆動力を回転体4に出力する出力部材50と、一方向の回転のみが許容されて他方向の回転が阻止される例えばラチェット部材である回転規制部60(以下、ラチェット部材60と称する)と、入力部材40と出力部材50とを部分的な相対回動を可能にしつつ一体回転可能に連結する後述するカム機構と、電動モータ2からの駆動力を減速して入力部材40に伝える減速機構12とを備える。また、本実施形態では、減速機構12が遊星歯車機構として構成される。 Further, the electric motor 2 and the rotating body 4 are mutually connected by a power transmission mechanism (power transmission path) 10 so as to be capable of transmitting power. In this case, the power transmission mechanism 10 transmits the rotation of the electric motor 2 to the rotary body 4 but does not transmit the rotation of the rotary body 4 to the electric motor 2 side. For example, the input member 40 to be input, the output member 50 that receives the driving force from the input member 40 and outputs the driving force to the rotating body 4, and only rotation in one direction is permitted and rotation in the other direction is blocked A rotation restricting portion 60 (hereinafter referred to as a ratchet member 60) which is a ratchet member, and a cam mechanism to be described later which integrally rotatably connects the input member 40 and the output member 50 while allowing relative rotation of parts; It has a reduction mechanism 12 for reducing the driving force from the electric motor 2 and transmitting it to the input member 40. Further, in the present embodiment, the reduction gear mechanism 12 is configured as a planetary gear mechanism.
具体的には、電動モータ2の出力軸2aは、2段式の第1の遊星歯車機構(第1の減速機構)12Aを介して入力部材40側に連結され、この場合、出力軸2aには、これと一体回転可能に第1の遊星歯車機構12Aの一対の太陽歯車18,19が、互いに軸方向に隣接して出力軸2aと同軸的に固定され、また、これらの太陽歯車18,19の周囲にはそれぞれ対応する複数の遊星歯車20,21が噛み合っている。また、これらの遊星歯車20,21は、遊星キャリア25によって回転可能に一体に支持されるとともに、出力軸2aと同心的に配置されてモータハウジング2Aに回転不能に固定される内歯車27とも噛み合っている。すなわち、遊星歯車20,21は、同心的に配置される太陽歯車18,19と内歯車27との間でこれらの両方の歯車18(19),27と噛み合いつつ、太陽歯車18,19の回転に伴って内歯車27の内周に沿って太陽歯車18,19の周りで公転するようになっている。なお、遊星キャリア25は、軸受30を介して出力軸2aに回転可能に支持されつつ、その中心で軸部25aが軸方向に延びている。 Specifically, the output shaft 2a of the electric motor 2 is connected to the input member 40 via the two-stage first planetary gear mechanism (first reduction mechanism) 12A, and in this case, the output shaft 2a is connected to the output shaft 2a. A pair of sun gears 18, 19 of the first planetary gear mechanism 12A are axially fixed adjacent to each other coaxially with the output shaft 2a so as to be integrally rotatable therewith, and these sun gears 18, A plurality of planet gears 20 and 21 respectively corresponding to 19 are meshed with each other. The planet gears 20 and 21 are rotatably supported integrally by a planet carrier 25 and meshed with an internal gear 27 disposed concentrically with the output shaft 2a and non-rotatably fixed to the motor housing 2A. ing. That is, the planetary gears 20 and 21 rotate between the sun gears 18 and 19 while meshing with the two gears 18 (19) and 27 between the sun gears 18 and 19 and the internal gear 27 arranged concentrically. Along with the inner periphery of the internal gear 27 to revolve around the sun gears 18 and 19. The planet carrier 25 is rotatably supported by the output shaft 2a via the bearing 30, and a shaft 25a extends in the axial direction at the center thereof.
また、遊星キャリア25の軸部25aは、軸受32を介して、ハウジング6に一体的に取り付けられる後述するユニットハウジング70に回転可能に支持されるとともに、この軸部25aにはこれと一体回転可能に第2の遊星歯車機構(第2の減速機構)12Bの太陽歯車35が同軸的に固定され、また、この太陽歯車35の周囲には、モータハウジング2Aに回転不能に固定される遊星キャリア37によって回転可能に一体に支持される複数の遊星歯車39が噛み合っている。 The shaft 25a of the planet carrier 25 is rotatably supported by a unit housing 70, which will be described later, which is integrally attached to the housing 6 via the bearing 32, and can be integrally rotated with the shaft 25a. The sun gear 35 of the second planetary gear mechanism (second reduction mechanism) 12B is coaxially fixed to the planetary gear 37, and a planet carrier 37 fixed to the motor housing 2A non-rotatably around the sun gear 35. The plurality of planet gears 39 rotatably supported integrally by the gear mesh with each other.
また、第2の遊星歯車機構12Bの前述した複数の遊星歯車39は、遊星キャリア25の軸部25aと同心的に配置されるとともに、環状の入力部材40の内周面を形成する内歯車40aとも噛み合って入力部材40を回転可能に支持している。すなわち、遊星歯車39は、同心的に配置される太陽歯車35と内歯車40aとの間でこれらの両方の歯車35,40aと噛み合いつつ、太陽歯車35及び/又は内歯車40aの回転に伴って内歯車40aの内周に沿って太陽歯車35の周りで公転するようになっている。 In addition, the plurality of planetary gears 39 described above of the second planetary gear mechanism 12B are disposed concentrically with the shaft portion 25a of the planetary carrier 25, and an internal gear 40a forming the inner peripheral surface of the annular input member 40. Both are engaged to rotatably support the input member 40. That is, while the planetary gear 39 meshes with both of the concentrically arranged sun gear 35 and the internal gear 40a while the sun gear 35 and / or the internal gear 40a rotates, the planetary gear 39 rotates with the sun gear 35 and / or the internal gear 40a. It revolves around the sun gear 35 along the inner circumference of the internal gear 40a.
また、遊星歯車39と噛み合う内歯車40aを有する入力部材40は、前述したようにカム機構を介して出力部材50と連結される。出力部材50は、軸受57を介してユニットハウジング70に回転可能に支持されるとともに、その外周フランジ部50aが締結部材52を介して回転体4に一体回転可能に結合固定される。出力部材50は、筒状の本体部50b内で入力部材40を嵌合状態で受けるとともに、電動モータ2とは反対の側で軸方向に突出する軸方向突出部50cの外周面によりラチェット部材60を回転可能に支持している。 Further, the input member 40 having the internal gear 40a meshing with the planetary gear 39 is connected to the output member 50 via the cam mechanism as described above. The output member 50 is rotatably supported by the unit housing 70 via the bearing 57, and the outer peripheral flange portion 50a is integrally fixed to the rotating body 4 via the fastening member 52 so as to be integrally rotatable. The output member 50 receives the input member 40 in a fitted state in the cylindrical main body portion 50b, and the ratchet member 60 is provided by the outer peripheral surface of the axially projecting portion 50c projecting in the axial direction on the side opposite to the electric motor 2. Is rotatably supported.
ラチェット部材60は、その外周のラチェット歯60Aがユニットハウジング70に回動可能に取り付けられたストッパ90と係合することにより、一方向(本実施形態では図1の反時計回り方向A)の回転のみが許容されて他方向(本実施形態では図1の時計回り方向B)の回転が阻止されている。そのため、本実施形態のラチェット部材60の外周のラチェット歯60Aは、図5に明確に示されるように、一方向A(反時計回り)で斜めに下がって低くなるテーパ面60aとこのテーパ面60aの下端で垂直に径方向に立ち上がる段差60bとの組を周方向に連続して有する。 The ratchet member 60 rotates in one direction (in the present embodiment, in the counterclockwise direction A in FIG. 1) by engagement of the ratchet teeth 60A on the outer periphery with the stopper 90 rotatably attached to the unit housing 70. Is permitted to prevent rotation in the other direction (clockwise direction B in FIG. 1 in this embodiment). Therefore, as shown clearly in FIG. 5, the ratchet teeth 60A on the outer periphery of the ratchet member 60 of the present embodiment have a tapered surface 60a which is lowered obliquely in one direction A (counterclockwise) and the tapered surface 60a. And a pair of steps 60b which vertically rise in the radial direction at the lower end of the lower case are continuously provided in the circumferential direction.
また、本実施形態に係る巻き上げ装置1には、回転体4に対して牽引部材を平行に巻回するためのレベルワインド装置87が設けられる。このレベルワインド装置87は、電動モータ2が回転駆動されると、それに連動して、すなわち、第1及び第2の歯車80,82及び図示しないウォームギアを介して、回転体4から繰り出される牽引部材を挿通する案内体88が左右に往復移動するよう構成されており、牽引部材の巻き取り動作に伴って、回転体4に対して牽引部材を均等に巻回する機能を有する。ここで、連動機構を構成する第1の歯車80は、締結部材86(図1参照)を介して出力部材50に一体回転可能に固定され、また、第1の歯車80と噛み合う第2の歯車82はユニットハウジング70に回転可能に支持されている。 Further, the winding device 1 according to the present embodiment is provided with a level wind device 87 for winding the pulling member in parallel to the rotating body 4. When the electric motor 2 is rotationally driven, the level wind device 87 is a pulling member that is unwound from the rotating body 4 in conjunction with it, that is, via the first and second gears 80 and 82 and a worm gear (not shown). The guide body 88 through which the through member is inserted is reciprocated to the left and right, and has a function of uniformly winding the pulling member around the rotating body 4 along with the winding operation of the pulling member. Here, the first gear 80 constituting the interlocking mechanism is integrally rotatably fixed to the output member 50 via the fastening member 86 (see FIG. 1), and a second gear meshed with the first gear 80. Reference numeral 82 is rotatably supported by the unit housing 70.
また、本実施形態に係る巻き上げ装置1では、図1に示されるように、カム機構を含む入力部材40及び出力部材50、ラチェット部材60、並びに、レベルワインド装置87に繋がる歯車80,82が前述したユニットハウジング70内に収容されて一体のユニットUとして構成されている。このように、これらの構成要素をユニット化することにより、巻き上げ装置1の組み立て性が向上する。 Further, in the winding device 1 according to the present embodiment, as shown in FIG. 1, the input member 40 and the output member 50 including the cam mechanism, the ratchet member 60, and the gears 80 and 82 connected to the level winding device 87 The unit housing 70 is housed in a unit housing 70 and configured as an integral unit U. As described above, by unitizing these components, the assemblability of the winding device 1 is improved.
なお、以上説明してきた動力伝達機構10のこれらの構成要素は、本実施形態では、電動モータ2を内部に収納した回転体4の内側及び側部に隣接して同軸的に且つ軸方向にコンパクトにハウジング6内に収容され、回転体4の径方向寸法の範囲内に収められる。このようなハウジング6内へのコンパトな収納は、減速機構12A,12Bとして遊星歯車機構を採用するとともに、これらを入力部材40及び出力部材50と共に同軸的に配設することにより、デッドスペースを伴うことなく実現し得るものである。 In the present embodiment, these components of the power transmission mechanism 10 described above are coaxially and axially compact adjacent to the inside and the side of the rotating body 4 in which the electric motor 2 is housed. In the housing 6 and within the range of the radial dimension of the rotor 4. Such compact storage in the housing 6 involves a dead space by employing a planetary gear mechanism as the reduction mechanism 12A, 12B and arranging the same coaxially with the input member 40 and the output member 50. Can be realized without
また、本実施形態において、入力部材40と出力部材50とを部分的な相対回動を可能にしつつ一体回転可能に連結する前述したカム機構は、出力部材50に対する入力部材40の第1の方向(本実施形態では、図1の反時計回り方向a)の相対回動によって軸方向に突出してラチェット部材60の表面と摩擦係合することにより入力部材40及び出力部材50をラチェット部材50に一体回転可能に結合させるとともに、出力部材50に対する入力部材40の第1の方向aと反対の第2の方向(本実施形態では、図1の時計回り方向b)の相対回動によってラチェット部材60から軸方向に離間することにより入力部材40と出力部材50とをラチェット部材60から切り離すようになっている。 Further, in the present embodiment, the above-described cam mechanism that couples the input member 40 and the output member 50 integrally rotatably while enabling relative relative rotation is a first direction of the input member 40 with respect to the output member 50. (In the present embodiment, the input member 40 and the output member 50 are integrated with the ratchet member 50 by projecting axially and frictionally engaging with the surface of the ratchet member 60 by relative rotation in the counterclockwise direction a of FIG. While being rotatably coupled, the relative rotation of the input member 40 relative to the output member 50 in the second direction opposite to the first direction a (in the present embodiment, clockwise direction b in FIG. 1) The input member 40 and the output member 50 are separated from the ratchet member 60 by being axially separated.
具体的には、図1に示されるように、本実施形態のカム機構は、出力部材50の本体部50bの側面に設けられる複数のカム溝78と、これらのカム溝78に係合する円柱状のフォロワ79とを有する。カム溝78は、所定の角度間隔(本実施形態では120°の間隔)を隔てて複数(本実施形態では3つ)設けられ、出力部材50の本体部50bの側面に沿ってラチェット部材60側からモータ2側へ向けて斜めに螺旋状に延びている(図5参照)。フォロワ79は、カム溝78に対応する位置で同数(本実施形態では3つ)設けられ、カム溝78を貫通して径方向外側に放射状に突出するとともに、出力部材50の本体部50bの内側面と対向する入力部材40の外側面に設けられるフォロワ取り付け穴(図示せず)に例えば着脱自在に固定される。したがって、このような構成のカム機構によれば、入力部材40と出力部材50とが部分的に回動可能となり、入力部材40と出力部材50との相対的な回動が相対的な軸方向移動へと変換される。なお、本実施形態において、フォロワ79は、組み付け段階では、カム溝78を通じて径方向外側(出力部材50の外側)から入力部材40に取り付けられるようになっている。このようなフォロワ79は、回転角度規制が可能であり、前述した特許文献1に開示されるネジ機構で必要とされるような別体の回転規制部材を不要にすることができる。また、このようなフォロワ79によれば、組み立ての順番や設計の自由度が増え、また、ねじ込み作業の必要性もなくなるため、部品点数の減少に加えて組み立て性も向上できる。 Specifically, as shown in FIG. 1, in the cam mechanism of the present embodiment, a plurality of cam grooves 78 provided on the side surface of the main body 50 b of the output member 50 and a circle engaged with these cam grooves 78 And a columnar follower 79. A plurality of (three in the present embodiment) cam grooves 78 are provided at predetermined angular intervals (120 in the present embodiment), and along the side surface of the main body 50b of the output member 50, the ratchet member 60 side is provided. Extending obliquely toward the motor 2 side (see FIG. 5). The same number (three in the present embodiment) of followers 79 are provided at positions corresponding to the cam grooves 78, and radially project radially outward through the cam grooves 78, and the inside of the main body 50b of the output member 50 is provided. For example, it is detachably fixed to a follower mounting hole (not shown) provided on the outer surface of the input member 40 facing the side surface. Therefore, according to the cam mechanism having such a configuration, the input member 40 and the output member 50 can be partially rotated, and the relative rotation between the input member 40 and the output member 50 is in the relative axial direction. Converted to move. In the present embodiment, the follower 79 is attached to the input member 40 from the radially outer side (the outer side of the output member 50) through the cam groove 78 at the assembly stage. Such a follower 79 is capable of regulating the rotation angle, and can dispense with a separate rotation regulating member as required in the screw mechanism disclosed in the above-mentioned Patent Document 1. Further, according to such a follower 79, the order of assembly and the degree of freedom in design are increased, and the necessity of screwing operation is eliminated, so that the assembling property can be improved in addition to the reduction of the number of parts.
また、本実施形態において、入力部材40は、出力部材50と対向するその対向面40aに周方向に所定の角度間隔(本実施形態では120°の角度間隔)を隔てて設けられる複数(本実施形態では3つ)の円弧状の突起74を有する。また、出力部材50の本体部50bの軸方向に面する主面には、これらの突起74と対応する位置に、突起74が係合する貫通穴(円弧状の長穴)72が設けられる。この場合、突起74は、前述したカム機構78,79の作用により、出力部材50に対する入力部材40の第1の方向aの相対回動に応じて貫通穴72を通じてラチェット部材60側に対して突出するとともに、反対の第2の方向bの相対回動に応じて貫通穴72の内側に没するようになっている(この意味で、突起74及び貫通穴72はカム機構に伴って動作するカム機構の一部を構成する)。なお、突起74は、ラチェット部材60側に対して突出されることによりラチェット部材60の対向面と摩擦接触状態で係合可能な係合面74aを有する。そして、この係合面74aは、ラチェット部材60の対向面と略平行な平坦面として形成されてもよいが、例えば第1の方向a(反時計回り方向)に向かって高さが高くなる(軸方向突出量が増大する)ようになっていても構わない。 Further, in the present embodiment, a plurality of the input members 40 are provided on the facing surface 40a facing the output member 50 at a predetermined angular interval (in the present embodiment, at an angular interval of 120 °) in the circumferential direction (this embodiment) In the embodiment, three arc-shaped projections 74 are provided. Further, on the main surface facing in the axial direction of the main body portion 50b of the output member 50, a through hole (an arc-shaped elongated hole) 72 with which the protrusion 74 engages is provided at a position corresponding to the protrusion 74. In this case, the projection 74 projects toward the ratchet member 60 through the through hole 72 according to the relative rotation of the input member 40 in the first direction a with respect to the output member 50 by the action of the cam mechanisms 78 and 79 described above. And in accordance with the relative rotation in the opposite second direction b, it sinks inside of the through hole 72 (in this sense, the projection 74 and the through hole 72 move along with the cam mechanism) Make up part of the mechanism). The protrusion 74 has an engagement surface 74 a which can be engaged in a frictional contact with the opposite surface of the ratchet member 60 by being protruded to the ratchet member 60 side. And although this engagement surface 74a may be formed as a flat surface substantially parallel to the opposing surface of the ratchet member 60, for example, height becomes high toward the 1st direction a (counterclockwise direction) ( The axial protrusion amount may be increased).
なお、本実施形態では、前述したカム機構による入力部材40及び出力部材50の部分的な回動を阻害しないように、突起74の周方向の長さ寸法よりも貫通穴72の周方向の長さ寸法の方が大きく設定されている(この周方向の寸法の差分(すなわち、カム溝78に沿うフォロワ79の移動可能量)が回動許容範囲(相対許容回動量)となる)。また、突起74の係合面とラチェット部材60の対向面との摩擦接触力は、入力部材40及び出力部材50とラチェット部材60との回転結合力を決定付けるが、前記摩擦接触力はカム溝78の傾きに依存し得る。すなわち、カム溝78の傾き(周方向に対する角度)を大きくすればするほど回転方向の力を効率的に軸方向の力に変換することができ、突起74によりラチェット部材60に大きな摩擦力を働かせることができる。一方、カム溝78の傾きを周方向に近づけると、突起74を軸方向に動かすために必要な回転角度が大きくなり、その結果、必要なカム溝78の長さが大きくなって、突起74の周方向の長さが小さくなる。したがって、本実施形態では、望ましいカム作用を実現するようにカム溝78の傾斜度合いや長さ、突起74の突出量などの設計パラメータが設定されている。 In the present embodiment, the circumferential length of the through hole 72 is longer than the circumferential dimension of the protrusion 74 so as not to inhibit partial rotation of the input member 40 and the output member 50 by the cam mechanism described above. The length dimension is set larger (the difference between the dimensions in the circumferential direction (that is, the movable amount of the follower 79 along the cam groove 78) becomes the rotation allowable range (relative allowable rotation amount). The frictional contact force between the engaging surface of the projection 74 and the opposing surface of the ratchet member 60 determines the rotational coupling force between the input member 40 and the output member 50 and the ratchet member 60, but the frictional contact force is a cam groove It may depend on the slope of 78. That is, the larger the inclination of the cam groove 78 (the angle with respect to the circumferential direction), the more efficiently the force in the rotational direction can be converted into the axial force, and the projection 74 exerts a larger frictional force on the ratchet member 60 be able to. On the other hand, when the inclination of the cam groove 78 is made closer to the circumferential direction, the rotation angle required to move the projection 74 in the axial direction becomes larger, and as a result, the length of the required cam groove 78 becomes larger. The circumferential length decreases. Therefore, in the present embodiment, design parameters such as the degree of inclination and the length of the cam groove 78 and the amount of projection of the projection 74 are set so as to realize the desired cam action.
以上のように構成される巻き上げ装置1において、図示しないバッテリ等から電力を電動モータ2に印加して電動モータ2の出力軸2aを正回転させる、すなわち、第1の方向aに回転させると、その回転は、第1及び第2の遊星歯車機構(減速機構)12A,12Bにより減速されて入力部材40に伝えられる。このようにして回転駆動力が入力部材40に入力されると、入力部材40が出力部材50に対して第1の方向aに相対回動され、前述したカム機構78,79の作用により入力部材40の突起74が出力部材50の貫通穴72を通じてラチェット部材60へ向けて軸方向に突出する。そして、貫通穴72内に係合する突起74がこの貫通穴72の第1の方向aの端部72aに当接すると、入力部材40と出力部材50とが第1の方向aに一体回転されるとともに、軸方向に突出する突起74がラチェット部材60と摩擦接触状態で係合して入力部材40及び出力部材50をラチェット部材60に一体回転可能に結合する。したがって、入力部材40、出力部材50、及び、ラチェット部材60が第1の方向a(一方向A)に一体で回転し、出力部材50の回転が回転体4に伝わって、回転体4を第1の方向aに回転させることができる。その結果、例えば、図示しない牽引部材を適切な速度で例えば回転体4に巻き付けることができる(牽引部材に結合された対象物を巻き上げる(上昇させる)ことができる)。 In the winding apparatus 1 configured as described above, when power is applied to the electric motor 2 from a battery or the like (not shown) to rotate the output shaft 2a of the electric motor 2 forwardly, that is, when rotating in the first direction a The rotation is decelerated by the first and second planetary gear mechanisms (deceleration mechanisms) 12A and 12B and transmitted to the input member 40. Thus, when the rotational driving force is input to the input member 40, the input member 40 is rotated relative to the output member 50 in the first direction a, and the input members are operated by the action of the cam mechanisms 78 and 79 described above. Forty projections 74 project axially towards the ratchet member 60 through the through holes 72 of the output member 50. Then, when the protrusion 74 engaged in the through hole 72 abuts on the end 72 a of the through hole 72 in the first direction a, the input member 40 and the output member 50 are integrally rotated in the first direction a. And an axially projecting projection 74 is engaged in frictional contact with the ratchet member 60 to couple the input member 40 and the output member 50 to the ratchet member 60 in an integrally rotatable manner. Therefore, the input member 40, the output member 50, and the ratchet member 60 integrally rotate in the first direction a (one direction A), and the rotation of the output member 50 is transmitted to the rotating body 4 to It can be rotated in direction a. As a result, for example, a traction member (not shown) can be wound at an appropriate speed, for example, around the rotating body 4 (an object coupled to the traction member can be rolled up (lifted up)).
一方、電動モータ2の出力軸2aを逆回転させる、すなわち、第2の方向bに回転させると、この回転も、第1及び第2の遊星歯車機構12A,12Bにより入力部材40に減速して伝えられる。このようにして回転駆動力が入力部材40に入力されると、入力部材40が出力部材50に対して第2の方向bに相対回動されて、前述したカム機構78,79の作用により突起74がラチェット部材60から軸方向に離間するように貫通穴72の内側に没するとともに、突起74が貫通穴72の第2の方向bの端部72bに当接した時点で、入力部材40と出力部材50とが第2の方向bに一体回転される。この第2の方向bでは、前述したように突起74がラチェット部材60から軸方向に離間することにより入力部材40及び出力部材50がラチェット部材60から切り離されて回転されるため、この回転方向bがラチェット部材60を回転不能な他方向Bに回転させようとする方向であるにもかかわらず、入力部材40及び出力部材50は、ラチェット部材60とは無関係に自由に一体回転して、その回転を回転体4に伝えて、回転体4を第2の方向bに回転させることができる。その結果、例えば、図示しない牽引部材を適切な速度で例えば回転体4から繰り出すことができる(牽引部材に結合された対象物を下降させることができる)。 On the other hand, when the output shaft 2a of the electric motor 2 is reversely rotated, that is, rotated in the second direction b, this rotation is also decelerated to the input member 40 by the first and second planetary gear mechanisms 12A and 12B. Reportedly. Thus, when the rotational driving force is input to the input member 40, the input member 40 is relatively rotated in the second direction b with respect to the output member 50, and the projection is performed by the action of the cam mechanisms 78 and 79 described above. When the projection 74 abuts on the end portion 72 b of the through hole 72 in the second direction b, the input member 40 The output member 50 is integrally rotated in the second direction b. In the second direction b, as the projection 74 is axially separated from the ratchet member 60 as described above, the input member 40 and the output member 50 are separated from the ratchet member 60 and rotated. Is a direction to rotate the ratchet member 60 in the other direction B which can not rotate, the input member 40 and the output member 50 freely rotate together independently of the ratchet member 60, and the rotation thereof Can be transmitted to the rotating body 4 to rotate the rotating body 4 in the second direction b. As a result, for example, a traction member (not shown) can be unrolled from, for example, the rotating body 4 at an appropriate speed (an object coupled to the traction member can be lowered).
これに対し、電動モータ2を停止させた無通電時に、牽引部材に過大な力が作用して、これを巻回する回転体4が第2の方向bに回転しようとすると、すなわち、回転体4と一体回転する出力部材50が入力部材40に対して第2の方向bに相対回転されると、入力部材40は出力部材50に対して第1の方向aに相対回動される形となることから、前述したカム機構78,79の作用により突起74が軸方向に突出してラチェット部材60と係合し、入力部材40及び出力部材50がラチェット部材60と一体回転可能に結合される。このとき、ラチェット部材60は第2の方向b、すなわち、他方向Bに回転されようとするが、ラチェット部材60はこの方向の回転がストッパ90により阻止されているため、出力部材50及び回転体4はそれ以上(すなわち、入力部材40と出力部材50との前述した相対許容回動量以上)回転しない。その結果、過大な力によって対象物が落下してしまわないように対象物を所定位置に保持することができる(対象物の不要な落下を防止できる)。 On the other hand, when the electric motor 2 is stopped and no electricity is applied, an excessive force acts on the pulling member, and the rotating body 4 for winding this is rotated in the second direction b, that is, the rotating body When the output member 50 which is integrally rotated with 4 is rotated relative to the input member 40 in the second direction b, the input member 40 is rotated relative to the output member 50 in the first direction a. Thus, the projection 74 axially projects to engage with the ratchet member 60 by the action of the cam mechanisms 78 and 79 described above, and the input member 40 and the output member 50 are integrally rotatably coupled to the ratchet member 60. At this time, the ratchet member 60 is intended to be rotated in the second direction b, that is, the other direction B, but since rotation of the ratchet member 60 in this direction is blocked by the stopper 90, the output member 50 and the rotating body 4 does not rotate any more (that is, more than the aforementioned relative allowable rotation amount between the input member 40 and the output member 50). As a result, the object can be held at a predetermined position so that the object is not dropped by an excessive force (unnecessary falling of the object can be prevented).
以上説明したように、本実施形態の巻き上げ装置1では、カム機構が、入力部材40と出力部材50とを連結させる(入力部材40と出力部材50との間で回転力を伝達する)機能、並びに、突起74を用いて入力部材40及び出力部材50とラチェット部材60とを係脱可能に係合させる(対象物の不要な落下を防止する)機能の両方の機能を兼ね備えているため、部品点数を少なくして巻き上げ装置1のコンパクト化を容易に図ることができる(巻き上げ装置1全体の構造の簡素化及び小型・軽量化を図ることができる)。しかも、カム機構のこのような兼用構造によれば、本実施形態のようにコンパクト化に影響を及ぼすことなく入力部材40に内歯車40aを形成してそこに遊星歯車39を組み込むことも可能になるため、巻き上げ装置1の軸方向寸法を小さく抑えて、巻き上げ装置1を必要とする様々な機器、装置等に対してコンパクトに組み込むことも可能になる。 As described above, in the winding device 1 of the present embodiment, the cam mechanism has a function of connecting the input member 40 and the output member 50 (transferring the rotational force between the input member 40 and the output member 50), In addition, since both the function of causing the input member 40 and the output member 50 and the ratchet member 60 to be releasably engageable (preventing unnecessary dropping of the object) using the projection 74 is provided, The number of points can be reduced to easily reduce the size of the winding device 1 (simplifying the structure of the entire winding device 1 and reducing the size and weight). Moreover, according to such a combined structure of the cam mechanism, it is possible to form the internal gear 40a on the input member 40 and incorporate the planetary gear 39 therein without affecting the compactness as in the present embodiment. As a result, the axial dimension of the winding device 1 can be kept small, and the device can be compactly incorporated into various devices, devices and the like that require the winding device 1.
また、本実施形態によれば、前述したように電動モータ2側からの正逆回転に応じて回転体4を牽引部材の巻き取り方向及び繰り出し方向に回転可能にするとともに、電動モータ2側からの駆動力入力停止時に回転体4の回転を阻止して牽引部材の繰り出しを防止するため、動力伝達状態を切り換えるクラッチ機構を不要としながらも、両回転方向の駆動力を利用する巻き上げ及び繰り出しの動力伝達の効果的制御の実現を図って、対象物の不要な落下を防止できる。また、クラッチ機構による動力伝達状態の切り換え操作が不要になるため、タイムリーに連続的且つ迅速に巻き上げ及び降ろし作業を効率的に行なえる。 Further, according to the present embodiment, as described above, the rotating body 4 can be rotated in the winding direction and the unwinding direction of the pulling member according to forward and reverse rotation from the electric motor 2 side, and from the electric motor 2 side To stop the rotation of the rotary member 4 at the time of stopping the driving force input and to prevent the extension of the pulling member, the clutch mechanism for switching the power transmission state is unnecessary, and winding and unwinding utilizing the driving force in both rotational directions By realizing effective control of power transmission, it is possible to prevent an unnecessary drop of an object. In addition, since the switching operation of the power transmission state by the clutch mechanism is not necessary, the winding and lowering operations can be performed efficiently and continuously and quickly.
なお、本実施形態の巻き上げ装置1は、寝具、梱包類、仮設足場、建造物、漁労具等の対象物を所定位置まで巻き上げたり、降ろしたりするために使用できるほか、魚釣用のリールとして使用することもでき、更には、ドローンに搭載してドローンから荷物を降ろし或いは上空のドローンへと荷物を巻き上げるなど、その適用分野は限定されない。 In addition, the winding device 1 of the present embodiment can be used for rolling up and lowering objects such as bedding, packing materials, temporary scaffoldings, buildings, fishing tackles and the like to a predetermined position, and as a fishing reel The application field is not limited, for example, it can be used in a drone and unloaded from a drone or rolled up a package to an upper drone.
以上、図面を参照しながら本発明の一実施形態について説明してきたが、本発明は、前述した実施形態に限定される、その要旨を逸脱しない範囲で種々変形して実施できる。例えば、前述した実施形態では、回転駆動力を生起するための駆動力源が電動モータであったが、回転駆動力が手動で生起されても構わない。また、前述した実施形態では、カム機構のカム溝及びフォロワ(関連する突起及び貫通穴)が3つ存在したが、これらのカム溝及びフォロワ(突起及び貫通穴)の数、形態等は任意に設定される。また、前述した実施形態では、出力部材にカム溝が設けられ、入力部材にフォロワが設けられているが、この逆の配置形態、すなわち、出力部材にフォロワを設け、入力部材にカム溝を設けて、フォロワを径方向内側に突出させてもよい。また、カム溝及びフォロワ(突起及び貫通穴)の配置形態は、前述した形態に限定されず、カム機構がカム溝及びフォロワから成る必要もない。要は、前述したカム機構の作用を実現できる形態であれば、カム機構の構造はどのようなものであってもよい。 As mentioned above, although one embodiment of the present invention has been described with reference to the drawings, the present invention can be variously modified without departing from the scope of the invention, which is limited to the above-described embodiment. For example, in the embodiment described above, the driving force source for generating the rotational driving force is the electric motor, but the rotational driving force may be manually generated. In the embodiment described above, there are three cam grooves and followers (relevant projections and through holes) of the cam mechanism, but the number, configuration, etc. of these cam grooves and followers (protrusions and through holes) are arbitrary. It is set. In the embodiment described above, the cam groove is provided in the output member and the follower is provided in the input member, but in the opposite arrangement form, that is, the follower is provided in the output member and the cam groove is provided in the input member Thus, the follower may project radially inward. Further, the arrangement form of the cam groove and the follower (the protrusion and the through hole) is not limited to the form described above, and the cam mechanism does not have to be composed of the cam groove and the follower. The point is that the structure of the cam mechanism may be any form as long as the action of the cam mechanism described above can be realized.
また、前述した実施形態では、第1の方向(一方向)が反時計回り方向に設定されるとともに、第2の方向(他方向)が時計回り方向に設定されているが、この方向設定が逆であってもよい。また、前述した実施形態では、電動モータの駆動が、携帯電話、WiFi通信端末などを利用して遠隔制御されてもよい。また、前述した実施形態では、回転規制部がラチェット部材により構成されているが、一方向クラッチななど、他の逆転防止構造によって回転規制部を構成しても構わない。また、前述した実施形態では、減速機構として遊星歯車機構が採用されたが、減速機構としては、波動歯車装置、例えばハーモニックドライブ(登録商標)や、平歯車が採用されてもよい。また、前述した実施形態では、電動モータが回転体内に収容されているが、電動モータが回転体の外部に設けられても構わない。 In the embodiment described above, the first direction (one direction) is set in the counterclockwise direction, and the second direction (the other direction) is set in the clockwise direction. It may be reversed. In the embodiment described above, the drive of the electric motor may be remotely controlled using a mobile phone, a WiFi communication terminal or the like. Moreover, in the embodiment described above, the rotation restricting portion is configured by the ratchet member, but the rotation restricting portion may be configured by another reverse rotation preventing structure such as a one-way clutch. Further, in the above-described embodiment, a planetary gear mechanism is adopted as the reduction mechanism, but a wave gear device such as a harmonic drive (registered trademark) or a spur gear may be adopted as the reduction mechanism. Further, in the embodiment described above, the electric motor is accommodated in the rotating body, but the electric motor may be provided outside the rotating body.
1 電動巻き上げ装置
2 電動モータ(駆動力源)
4 回転体
6 ハウジング(装置本体)
12A 第1の減速機構(遊星歯車機構)
12B 第2の減速機構(遊星歯車機構)
40 入力部材
40a 内歯車
50 出力部材
60 ラチェット部材(回転規制部)
72 貫通穴(カム機構)
74 突起(カム機構)
78 カム溝(カム機構)
79 フォロワ(カム機構)
87 レベルワインド装置
1 electric hoist 2 electric motor (drive power source)
4 Rotatable body 6 Housing (apparatus main body)
12A 1st reduction mechanism (planet gear mechanism)
12B Second reduction gear mechanism (planet gear mechanism)
40 input member 40a internal gear 50 output member 60 ratchet member (rotation restricting portion)
72 Through hole (cam mechanism)
74 projection (cam mechanism)
78 Cam groove (cam mechanism)
79 follower (cam mechanism)
87 Level Winding Equipment
Claims (8)
前記装置本体に回転可能に支持され、巻き上げ対象物を牽引するための牽引部材が巻回される回転体と、
前記駆動力源から駆動力が入力される入力部材と、
前記入力部材から駆動力を受けて該駆動力を前記回転体に出力する出力部材と、
一方向の回転のみが許容されて他方向の回転が阻止される回転規制部と、
前記入力部材と前記出力部材とを部分的な相対回動を可能にしつつ一体回転可能に連結し、前記出力部材に対する前記入力部材の第1の方向の前記相対回動によって軸方向に突出して前記回転規制部と係合することにより前記入力部材及び前記出力部材を前記回転規制部に一体回転可能に結合させるとともに、前記出力部材に対する前記入力部材の前記第1の方向と反対の第2の方向の相対回動によって前記回転規制部から軸方向に離間することにより前記入力部材と前記出力部材とを前記回転規制部から切り離すカム機構と、
を備えることを特徴とする巻き上げ装置。 A driving force source provided in the device body for generating a rotational driving force;
A rotating body rotatably supported by the device body and on which a pulling member for pulling a to-be-rolled object is wound;
An input member to which a driving force is input from the driving force source;
An output member that receives a driving force from the input member and outputs the driving force to the rotating body;
A rotation restricting portion that allows only one rotation and prevents rotation in the other direction;
The input member and the output member are integrally rotatably coupled while enabling partial relative rotation, and axially projecting by the relative rotation of the input member with respect to the output member in a first direction A second direction opposite to the first direction of the input member with respect to the output member while the input member and the output member are integrally rotatably coupled to the rotation restricting portion by engaging with the rotation restricting portion. A cam mechanism which separates the input member and the output member from the rotation restricting portion by being axially separated from the rotation restricting portion by relative rotation of
A hoisting device comprising:
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017081553A JP6805061B2 (en) | 2017-04-17 | 2017-04-17 | Winding device |
PCT/JP2018/015719 WO2018194026A1 (en) | 2017-04-17 | 2018-04-16 | Electric hoisting machine and control device and control method therefor |
EP18787578.6A EP3613700A4 (en) | 2017-04-17 | 2018-04-16 | Electric hoisting machine and control device and control method therefor |
US16/605,544 US11853037B2 (en) | 2017-04-17 | 2018-04-16 | Electric hoisting machine and control device and control method therefor |
CN201880039615.1A CN110740964B (en) | 2017-04-17 | 2018-04-16 | Electric hoist, and control device and control method thereof |
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CN109027136A (en) * | 2017-06-08 | 2018-12-18 | 亿迈齿轮两合股份公司 | Particularly for the electromechanical driving of vehicle or the planetary gear set of parking brake |
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CN109027136A (en) * | 2017-06-08 | 2018-12-18 | 亿迈齿轮两合股份公司 | Particularly for the electromechanical driving of vehicle or the planetary gear set of parking brake |
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