JP2006342795A - Double-sided fan - Google Patents

Double-sided fan Download PDF

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JP2006342795A
JP2006342795A JP2006109896A JP2006109896A JP2006342795A JP 2006342795 A JP2006342795 A JP 2006342795A JP 2006109896 A JP2006109896 A JP 2006109896A JP 2006109896 A JP2006109896 A JP 2006109896A JP 2006342795 A JP2006342795 A JP 2006342795A
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shaft
double
hole
rotating shaft
sided fan
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Japanese (ja)
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Chung-Yin Cheng
宗殷 鄭
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/662—Balancing of rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double-sided fan eliminating loose of blade devices during rotation, well balanced and preventing wobbling with the balance lost. <P>SOLUTION: The double-sided fan comprises a motor device 10 with a rotary shaft 11 projecting on both the left and the right, a support base 40 supporting the motor device 10 from beneath for to-and-fro turn and the pair of blade devices 20 journaled through respective shaft holes 211 at bilaterally-symmetrical positions near both ends of the rotary shaft 11 with back sides faced each other for sending air outward in the longitudinal direction by the same rotation direction of the motor device 10. The journaling structures of the rotary shaft 11 and the shaft holes 111 both include locking structures for making the rotary shaft 11 and the shaft holes 111 unable to mutually turn and the respective locking structures are such that one locking structure is located on the opposite side of the other latch structure with respect to the axis of the rotary shaft 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、両面扇風機に関し、特に穏やかに一対の羽根車装置を支持しながら左右前後３６０°ほどの広範囲に送風することができる両面扇風機に関する。   The present invention relates to a double-sided fan, and more particularly, to a double-sided fan capable of blowing air over a wide range of about 360 ° to the left and right while supporting a pair of impeller devices gently.

従来の両面扇風機は、通常、図１０のように、その回転軸１０１が左右両方へ突出しているモーター装置１と、モーター装置１を往復回動できるように下から平面的に支持している支持台座３と、それぞれの軸孔２０１でモーター１の左右両方へ突出している回転軸１０１の両端１０１ａ近傍の対称的な位置に、互いの背面側を向かい合わせ、且つモーター装置１による同一の回転方向で左右方向の外方へ送風することができるように軸支されている一対の羽根車装置２とからなっている。   As shown in FIG. 10, the conventional double-sided fan usually has a motor device 1 having a rotating shaft 101 protruding left and right, and a support that supports the motor device 1 in plan view from below so that the motor device 1 can be reciprocally rotated. The same direction of rotation by the motor device 1 and the back side of the pedestal 3 and symmetrical positions in the vicinity of both ends 101a of the rotating shaft 101 projecting to both the left and right of the motor 1 through the respective shaft holes 201 And a pair of impeller devices 2 that are pivotally supported so as to be able to blow outward in the left-right direction.

このような両面扇風機は、左右前後３６０°ほどの広範囲に送風をすることができるが、その一対の羽根車装置２と回転軸１０１の両端１０１ａとの固定は、回転軸１０１のねじ付き両端１０１ａと、雌ねじ付き軸孔２０２ａを有する一対のカバー２０２とのねじ締めで、羽根車装置２を押し付けることで行われている。しかし、このような固定方式は、羽根車装置２が緩み易いのみならず、押し付けるためのカバー２０２も緩み易い。   Such a double-sided fan can blow air over a wide range of about 360 ° in the left and right directions. The pair of impeller devices 2 and both ends 101a of the rotating shaft 101 are fixed to both ends 101a of the rotating shaft 101 with screws. And the impeller device 2 is pressed by screwing with a pair of covers 202 having a shaft hole 202a with a female thread. However, in such a fixing method, not only the impeller device 2 is easily loosened, but also the cover 202 for pressing is easily loosened.

そして、前記欠点を解消するために、前記固定方式の他に、羽根車装置２と回転軸１０１との間に更に係止機構を加え、例えば、羽根車装置２と回転軸１０１とにそれぞれ互いに対応する孔を設置し、これらをビスで係止させる方式もよく採用されている。このような係止方式は、確かに、羽根車装置２と回転軸１０１との間の固定を高めることができるが、一対の羽根車装置２の回転軸１０１に対する重心を失わせるうえ、それらの回転を狂わせて扇風機全体をふらふらさせる欠点が出てくる。   And in order to eliminate the said fault, in addition to the said fixed system, a locking mechanism is further added between the impeller apparatus 2 and the rotating shaft 101, for example, the impeller apparatus 2 and the rotating shaft 101 are mutually connected, respectively. A method of installing corresponding holes and locking them with screws is often adopted. Such a locking method can surely enhance the fixing between the impeller device 2 and the rotary shaft 101, but the center of gravity of the pair of impeller devices 2 with respect to the rotary shaft 101 is lost. There is a fault that makes the whole fan sway by rotating the rotation.

本発明は、前記問題に鑑みてなされたもので、回転中に、羽根車装置が緩まず、且つ、バランスがよくとれて、重心を失ってふらふらすることがない両面扇風機を提供しようとすることを目的とする。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a double-sided fan in which an impeller device does not loosen and is well balanced during rotation and does not lose its center of gravity and stagger. With the goal.

前記目的を達成するために、発明者は、研究に研究を重ねた結果、係止機構の加えは確かに羽根車装置と回転軸との間の固定を高めることができるので、それを更に改善しよく利用することが有利であるのみならず、左右一対の係止機構の付加を従来のように回転軸の同一の側で行うのではなく、回転軸の軸芯に対してまったく反対の側にすれば、前記重心を失わせて羽根車装置の回転を狂わせる欠点もなくなることを発見した。   In order to achieve the above-mentioned object, the inventor has conducted further research, and as a result, the addition of the locking mechanism can surely enhance the fixation between the impeller device and the rotating shaft, which is further improved. It is not only advantageous to use it well, but the addition of a pair of left and right locking mechanisms is not performed on the same side of the rotating shaft as in the past, but on the opposite side to the axis of the rotating shaft In this case, it has been found that there is no disadvantage that the center of gravity is lost and the rotation of the impeller device is distorted.

前記発見に基づいて、本発明は、まず、回転軸が左右両方へ突出しているモーター装置と、前記モーター装置を往復回動できるように下から支持している支持台座と、前記回転軸の両端近傍の左右対称的な位置に、互いの背面側を向かい合わせ、且つ前記モーター装置による同一の回転方向で左右方向の外方へ送風できるように、それぞれの軸孔で軸支されている一対の羽根車装置とからなっている両面扇風機において、前記回転軸と軸孔との軸支構造は、いずれも前記回転軸と軸孔とを互いに回動不可能とする係止構造を含んでいるうえ、各係止構造は、一方の係止構造が前記回転軸の軸芯に対して他方の係止構造の反対側に位置していることを特徴とする両面扇風機を提供する。   Based on the above discovery, the present invention first includes a motor device having a rotating shaft projecting left and right, a support pedestal that supports the motor device from below so that the motor device can be reciprocally rotated, and both ends of the rotating shaft. A pair of shafts that are pivotally supported by the respective shaft holes so that the back sides of each other face each other in the vicinity of the left and right symmetrical positions and can be blown outward in the left and right directions in the same rotational direction by the motor device. In the double-sided fan composed of an impeller device, the shaft support structure of the rotating shaft and the shaft hole includes a locking structure that prevents the rotating shaft and the shaft hole from rotating relative to each other. Each locking structure provides a double-sided fan characterized in that one locking structure is located on the opposite side of the other locking structure with respect to the axis of the rotating shaft.

具体的には、前記軸支構造における軸孔形状と回転軸断面とはほぼ同等であるうえ、それぞれ非円形で互いに回動不可能に係止しており、前記軸孔は全体が非円形であり、前記回転軸は先端近傍だけが非円形断面であるようにし、さらに、前記軸孔は、外周の一部に平坦部を有する円形であり、前記回転軸は、両端近傍の非円形断面の切欠きがその軸芯に対して反対側に位置しているものが挙げられる。   Specifically, the shape of the shaft hole and the cross section of the rotation shaft in the shaft support structure are substantially the same, and are non-circular and non-rotatably locked to each other, and the shaft hole is entirely non-circular. The rotation shaft has a non-circular cross section only in the vicinity of the tip, and the shaft hole has a circular shape having a flat portion at a part of the outer periphery, and the rotation shaft has a non-circular cross section in the vicinity of both ends. The thing which a notch is located in the other side with respect to the axial center is mentioned.

また、本発明は、前記両面扇風機の構成を基礎として、前記軸支構造における前記軸孔は、円筒体の中孔からなっており、前記係止構造は、前記円筒体に筒外から筒内まで延伸してなった貫通孔と、前記回転軸の軸芯に対して反対側に位置する外周面に前記貫通孔と対応するように形成してある切欠きと、前記貫通孔を通して筒外から筒内における回転軸上の切欠きに挿入したビスとからなっているものを提供する。   Further, according to the present invention, on the basis of the configuration of the double-sided fan, the shaft hole in the shaft support structure is formed of an inner hole of a cylindrical body, and the locking structure is inserted into the cylinder body from the outside of the cylinder to the inside of the cylinder. A through hole that has been extended to the outside, a notch that is formed on the outer peripheral surface located on the opposite side of the axis of the rotating shaft so as to correspond to the through hole, and through the through hole from the outside of the cylinder Provided is a screw made of a screw inserted into a notch on a rotating shaft in a cylinder.

さらに、本発明は、前記軸支構造における軸孔は、円筒体の中孔からなっており、前記係止構造は、前記円筒体の前記回転軸を挿入される側の端縁に設けた少なくとも１つの切欠きと、前記回転軸の軸芯に対して反対側に位置する外周面に前記切欠きと対応するように形成してあり、該切欠きに挿入される突起とからなっているものをも提供する。   Further, in the present invention, the shaft hole in the shaft support structure is formed of an inner hole of a cylindrical body, and the locking structure is provided at least on an edge of the cylindrical body on the side where the rotation shaft is inserted. One notch and an outer peripheral surface located on the opposite side to the axis of the rotating shaft are formed so as to correspond to the notch and a protrusion inserted into the notch Also provide.

前記構成による両面扇風機は、回転軸と軸孔との軸支構造がいずれも回転軸と軸孔とを互いに回動不可能とする係止構造を含んでいるうえ、左右一対の係止構造は回転軸の軸芯に対して反対側に位置しているので、扇風機全体はバランスがよくとれて、重心を失ってふらふらすることがない。   In the double-sided fan having the above-described configuration, the shaft support structure of the rotating shaft and the shaft hole includes a locking structure that prevents the rotating shaft and the shaft hole from rotating with respect to each other. Since it is located on the opposite side with respect to the axis of the rotating shaft, the entire fan is well balanced and does not lose its center of gravity.

また、前記構成による両面扇風機は、羽根車装置と回転軸との間の固定が主として係止機構により行われているので、特に、係止機構は形状が同等である非円形嵌合になっている場合、回転中に、羽根車装置は全然緩まない。   Further, in the double-sided fan having the above-described configuration, the fixing between the impeller device and the rotating shaft is mainly performed by a locking mechanism, and in particular, the locking mechanism has a non-circular fitting with the same shape. If so, the impeller device does not loosen at all during rotation.

以下、図示を参照しながら本発明の好適な実施形態を詳細に説明する。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

本発明の第１実施形態の両面扇風機は、図１に示すように、その回転軸１１が左右両方へ突出しているモーター装置１０と、モーター装置１０を往復回動できるように下から平面的に支持している支持台座４０と、前記モーター１０の左右両方へ突出している回転軸１１の両端１１１，１１１近傍の左右対称的な位置に、互いの背面側を向かい合わせ、且つモーター装置１０による同一の回転方向で左右方向の外方へ送風することができるように、それぞれの軸孔２１１で軸支されている一対の羽根車装置２０とからなっている。   As shown in FIG. 1, the double-sided fan according to the first embodiment of the present invention has a motor device 10 having a rotating shaft 11 protruding left and right, and a plan view from below so that the motor device 10 can be reciprocally rotated. The back side of each of the supporting base 40 and the rotating shaft 11 protruding to both the left and right sides of the motor 10 are symmetrically positioned in the vicinity of the left and right sides 111 and 111, and the same by the motor device 10. It consists of a pair of impeller devices 20 that are pivotally supported by the respective shaft holes 211 so that air can be blown outward in the left-right direction in the rotation direction.

また、該両面扇風機において、前記回転軸１１と軸孔２１１との軸支構造は、図２及び図３のように、いずれも回転軸１１と軸孔２１１とを互いに回転不可能とする係止構造を含んでいるうえ、前記左右一対の係止構造はいずれも他方の軸支構造の係止構造になっている箇所の反対側になっている。言い換えれば、各係止構造は、前記回転軸１１の各端部１１１，１１１において、一方の係止構造が回転軸１１の軸芯に対して他方の係止構造の反対側、即ち、回転軸１１の軸芯を中心として点対称な対向位置に設けられている。   Further, in the double-sided fan, the shaft support structure of the rotary shaft 11 and the shaft hole 211 is such that both the rotary shaft 11 and the shaft hole 211 cannot rotate as shown in FIGS. In addition to the structure, the pair of left and right locking structures are on the opposite side of the place where the locking structure of the other shaft support structure is provided. In other words, each locking structure is such that at each end 111, 111 of the rotating shaft 11, one locking structure is opposite to the other locking structure with respect to the axis of the rotating shaft 11, that is, the rotating shaft. It is provided at an opposing position that is point-symmetric about the 11 axis.

詳細に言えば、モーター装置１０と羽根車装置２０の軸支構造は、円筒体２１の軸孔２１１形状と回転軸１１断面とはほぼ同等であるうえ、両方とも非円形となっていて互いに回転不可能に係止している。即ち、軸孔２１１は全体が均一な非円形であり、回転軸１１は先端１１１，１１１近傍だけが均一な非円形断面である。具体的には、軸孔２１１は、その外周部の一部に平坦部を有する軸方向からみてＤ字形状の円形であり、回転軸１１は、外周部の一部に切欠き１１３，１１３を設けた断面Ｄ字形状の円形からなっている。そして、回転軸１１の両端１１１，１１１近傍にそれぞれ形成する非円形断面の切欠き１１３，１１３は、他方の切欠き１１３の反対側に位置するように構成されている。即ち、切欠き１１３，１１３は、回転軸１１の延びる方向からみて反対側に位置するように設けられている。   In detail, the shaft support structure of the motor device 10 and the impeller device 20 is substantially the same as the shape of the shaft hole 211 of the cylindrical body 21 and the cross section of the rotating shaft 11, and both are non-circular and rotate with respect to each other. Locked impossible. That is, the shaft hole 211 has a uniform non-circular shape as a whole, and the rotary shaft 11 has a uniform non-circular cross section only in the vicinity of the tips 111 and 111. Specifically, the shaft hole 211 is a D-shaped circle as viewed from the axial direction having a flat portion at a part of the outer peripheral portion thereof, and the rotating shaft 11 has notches 113 and 113 formed at a part of the outer peripheral portion. It has a circular shape with a D-shaped cross section. And the notches 113 and 113 of the non-circular cross section formed in the both ends 111 and 111 vicinity of the rotating shaft 11 are comprised so that it may be located in the other side of the other notch 113. FIG. That is, the notches 113 and 113 are provided on the opposite side when viewed from the direction in which the rotation shaft 11 extends.

本発明の第２実施形態の両面扇風機は、図４〜図６に示すように、その大体の構成が第１実施形態における両面扇風機と同様であるが、回転軸１１と軸孔２１１との軸支構造及び係止構造が異なっている。   As shown in FIGS. 4 to 6, the double-sided fan of the second embodiment of the present invention is substantially the same in configuration as the double-sided fan in the first embodiment, but the shaft of the rotating shaft 11 and the shaft hole 211. The support structure and the locking structure are different.

詳細に言うと、まず両方の軸支構造における軸孔２１１は、円筒体２１の中孔からなっている。   More specifically, first, the shaft hole 211 in both the shaft support structures is formed of the middle hole of the cylindrical body 21.

そして、その左右両方の係止構造は、いずれも、円筒体２１に筒外から筒内まで延伸してなった貫通孔２１３と、回転軸１１の外周面の貫通孔２１３と対応する箇所に形成してある切欠き１１３，１１３と、貫通孔２１３を通して筒外から筒内における回転軸１１上の切欠き１１３，１１３に挿入したビス３１とからなっている。これらは、係止状態で回転軸１１に対して対称的に位置するように、回転軸１１の軸線を基準として互いに正反対側に設けられている。   Both the right and left locking structures are formed at locations corresponding to the through hole 213 extending from the outside of the cylinder to the inside of the cylinder 21 and the through hole 213 on the outer peripheral surface of the rotating shaft 11. And the screws 31 inserted into the notches 113, 113 on the rotary shaft 11 in the cylinder from the outside through the through-hole 213. These are provided on the opposite sides with respect to the axis of the rotary shaft 11 so as to be symmetrically positioned with respect to the rotary shaft 11 in the locked state.

本発明の第３実施形態の両面扇風機は、図７〜図９に示すように、その大体の構成が第１実施形態における両面扇風機と同様であるが、やはり回転軸１１と軸孔２１１との軸支構造及び係止構造が異なっている。   As shown in FIGS. 7 to 9, the double-sided fan of the third embodiment of the present invention is substantially the same in structure as the double-sided fan in the first embodiment. The shaft support structure and the locking structure are different.

詳細に言うと、軸支構造における軸孔２１１は、円筒体２１の中孔からなっている。   More specifically, the shaft hole 211 in the shaft support structure is an inner hole of the cylindrical body 21.

また、係止構造は、円筒体２１の回転軸１１を挿入する側の端縁において軸線を中心として互いに対称に位置するように設けた一対の切欠き２１５，２１５と、回転軸１１の外周面の前記切欠き２１５，２１５と対応するように形成した突起１１７，１１７とからなっている。そして、前記切欠き２１５，２１５に、突起１１７，１１７が挿入されることにより、モーター装置１０の回転軸１１に対して羽根車装置２０を回動不可能に係止できる。   The locking structure includes a pair of notches 215 and 215 provided so as to be positioned symmetrically with respect to the axis at the end of the cylindrical body 21 on the side where the rotating shaft 11 is inserted, and the outer peripheral surface of the rotating shaft 11. The projections 117 and 117 are formed so as to correspond to the notches 215 and 215. And by inserting the protrusions 117 and 117 into the notches 215 and 215, the impeller device 20 can be locked with respect to the rotating shaft 11 of the motor device 10 so as not to rotate.

即ち、第３実施形態では、左右両方の係止構造のいずれも、互いに対称に位置する切欠き２１５と突起１１７との係止を一対含んでおり、且つその一対の係止のいずれも、回転軸１１の軸芯に対して正反対側にある。   That is, in the third embodiment, both the right and left locking structures include a pair of locking of the notch 215 and the protrusion 117 that are positioned symmetrically to each other, and both of the pair of locking are rotated. It is on the opposite side to the axis of the shaft 11.

なお、前記各実施形態では、回転軸１１の両端１１１、１１１にそれぞれカバー３０が配設されている。これらのカバー３０はいずれも該当の羽根車装置２０を外から押し付けていて回転中の羽根車装置２０の軸方向の移動を止めることができる。   In each of the above-described embodiments, the cover 30 is disposed at each end 111 of the rotating shaft 11. Any of these covers 30 can press the corresponding impeller device 20 from the outside to stop the axial movement of the rotating impeller device 20.

前記構成による両面扇風機は、回転軸と軸孔との軸支構造がいずれも回転軸と軸孔とを互いに回動不可能とする係止構造を含んでいるうえ、左右一対の係止構造は、回転軸の軸芯に対して反対側になっているので、扇風機全体はバランスがよくとれて、重心を失ってふらふらすることがない。   In the double-sided fan having the above-described configuration, the shaft support structure of the rotating shaft and the shaft hole includes a locking structure that prevents the rotating shaft and the shaft hole from rotating with respect to each other. Since it is on the opposite side to the axis of the rotating shaft, the whole fan is well balanced and does not lose its center of gravity.

また、前記構成による両面扇風機は、羽根車装置と回転軸との間の固定が主として係止機構により行われているので、特に、係止機構は断面が同等である非円形嵌合になっている場合、回転中に、羽根車装置は全然緩まない。   In the double-sided fan having the above-described configuration, the fixing between the impeller device and the rotating shaft is mainly performed by a locking mechanism, and therefore, particularly, the locking mechanism has a non-circular fitting with the same cross section. If so, the impeller device does not loosen at all during rotation.

本発明の第１実施形態の両面扇風機の側面図。The side view of the double-sided fan of 1st Embodiment of this invention. 本発明の第１実施形態の両面扇風機の分解断面図。The exploded sectional view of the double-sided fan of a 1st embodiment of the present invention. 本発明の第１実施形態の両面扇風機における係止構造を示す断面図。Sectional drawing which shows the latching structure in the double-sided fan of 1st Embodiment of this invention. 本発明の第２実施形態の両面扇風機の側面図。The side view of the double-sided fan of 2nd Embodiment of this invention. 本発明の第２実施形態の両面扇風機の分解断面図。The exploded sectional view of the double-sided fan of a 2nd embodiment of the present invention. 本発明の第２実施形態の両面扇風機における係止構造を示す断面図。Sectional drawing which shows the latching structure in the double-sided fan of 2nd Embodiment of this invention. 本発明の第３実施形態の両面扇風機の側面図。The side view of the double-sided fan of 3rd Embodiment of this invention. 本発明の第３実施形態の両面扇風機の分解断面図。The exploded sectional view of the double-sided fan of a 3rd embodiment of the present invention. 本発明の第３施例の両面扇風機における係止構造を示す断面図。Sectional drawing which shows the latching structure in the double-sided fan of 3rd Example of this invention. 従来の両面扇風機の断面図。Sectional drawing of the conventional double-sided fan.

符号の説明Explanation of symbols

１０…モーター装置
１１…回転軸
１１１…端部（先端）
１１３，１１３…切欠き
１１７…突起
２０…羽根車装置
２１…円筒体
２１１…軸孔
２１３…貫通孔
２１５、２１５…切欠き
３０…カバー
３１…ビス
４０…支持台座 DESCRIPTION OF SYMBOLS 10 ... Motor apparatus 11 ... Rotary shaft 111 ... End part (tip)
113, 113 ... Notch 117 ... Protrusion 20 ... Impeller device 21 ... Cylindrical body 211 ... Shaft hole 213 ... Through hole 215, 215 ... Notch 30 ... Cover 31 ... Screw 40 ... Support base

Claims (7)

回転軸が左右両方へ突出しているモーター装置と、
前記モーター装置を往復回動できるように下から支持している支持台座と、
前記回転軸の両端近傍の左右対称的な位置に、互いの背面側を向かい合わせ、且つ前記モーター装置による同一の回転方向で左右方向の外方へ送風できるように、それぞれの軸孔で軸支されている一対の羽根車装置とからなっている両面扇風機において、
前記回転軸と軸孔との軸支構造は、いずれも前記回転軸と軸孔とを互いに回動不可能とする係止構造を含んでいるうえ、各係止構造は、一方の係止構造が前記回転軸の軸芯に対して他方の係止構造の反対側に位置していることを特徴とする両面扇風機。 A motor device whose rotating shaft protrudes to the left and right;
A support pedestal supporting the motor device from below so as to be able to reciprocately rotate;
Axial support is provided in each shaft hole so that the back sides of the rotary shafts face each other in the vicinity of both ends of the rotary shaft and face each other in the same rotational direction by the motor device. In a double-sided fan consisting of a pair of impeller devices,
Each of the shaft support structures of the rotating shaft and the shaft hole includes a locking structure that makes the rotating shaft and the shaft hole non-rotatable with each other, and each locking structure has one locking structure. Is located on the opposite side of the other locking structure with respect to the axis of the rotating shaft. 前記軸支構造における軸孔形状と回転軸断面とはほぼ同等であるうえ、それぞれ非円形で互いに回動不可能に係止していることを特徴とする請求項１に記載の両面扇風機。   2. The double-sided fan according to claim 1, wherein the shaft hole shape and the rotary shaft cross-section of the shaft support structure are substantially equal to each other and are non-circular and locked to each other so as not to rotate. 前記軸孔は全体が非円形であり、前記回転軸は先端近傍だけが非円形断面であることを特徴とする請求項２に記載の両面扇風機。   The double-sided fan according to claim 2, wherein the shaft hole is entirely non-circular, and the rotation shaft has a non-circular cross section only in the vicinity of the tip. 前記軸孔は、外周の一部に平坦部を有する円形であり、前記回転軸は、両端近傍の非円形断面の切欠きがその軸芯に対して反対側に位置していることを特徴とする請求項２または３に記載の両面扇風機。   The shaft hole has a circular shape with a flat portion at a part of the outer periphery, and the rotation shaft has a notch of a non-circular cross section near both ends thereof located on the opposite side to the axis. The double-sided fan according to claim 2 or 3. 前記軸支構造における前記軸孔は、円筒体の中孔からなっており、
前記係止構造は、前記円筒体に筒外から筒内まで延伸してなった貫通孔と、
前記回転軸の軸芯に対して反対側に位置する外周面に前記貫通孔と対応するように形成してある切欠きと、
前記貫通孔を通して筒外から筒内における回転軸上の切欠きに挿入したビスとからなっていることを特徴とする請求項１に記載の両面扇風機。 The shaft hole in the shaft support structure is composed of a cylindrical hole,
The locking structure includes a through-hole extending from the outside of the cylinder to the inside of the cylinder,
A notch formed in the outer peripheral surface located on the opposite side to the axis of the rotating shaft so as to correspond to the through hole;
The double-sided fan according to claim 1, wherein the double-sided fan is composed of a screw inserted into a notch on a rotating shaft in the cylinder from outside the cylinder through the through hole. 前記軸支構造における軸孔は、円筒体の中孔からなっており、
前記係止構造は、前記円筒体の前記回転軸を挿入される側の端縁に設けた少なくとも１つの切欠きと、
前記回転軸の軸芯に対して反対側に位置する外周面に前記切欠きと対応するように形成してあり、該切欠きに挿入される突起とからなっていることを特徴とする請求項１に記載の両面扇風機。 The shaft hole in the shaft support structure is a cylindrical hole,
The locking structure includes at least one notch provided at an edge of the cylindrical body on the side where the rotating shaft is inserted;
The outer peripheral surface located on the opposite side to the axis of the rotating shaft is formed so as to correspond to the notch and includes a protrusion inserted into the notch. The double-sided electric fan according to 1. 前記回転軸の両端にそれぞれカバーが配設されており、これらのカバーはいずれも羽根車装置を外から押し付けて回転中の羽根車装置の軸方向の移動を止めることを特徴とする請求項１〜６のいずれか１項に記載の両面扇風機。   2. A cover is disposed at each end of the rotating shaft, and both of these covers press the impeller device from the outside to stop the axial movement of the rotating impeller device. The double-sided electric fan of any one of -6.
JP2006109896A 2005-06-06 2006-04-12 Double-sided fan Pending JP2006342795A (en)

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