US3481533A - Directional fan - Google Patents

Directional fan Download PDF

Info

Publication number
US3481533A
US3481533A US708613A US3481533DA US3481533A US 3481533 A US3481533 A US 3481533A US 708613 A US708613 A US 708613A US 3481533D A US3481533D A US 3481533DA US 3481533 A US3481533 A US 3481533A
Authority
US
United States
Prior art keywords
pivot
fan
pedestal
impeller
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US708613A
Other languages
English (en)
Inventor
Maurice Marie Achill Trouilhet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Calor SAS
Original Assignee
Calor SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Calor SAS filed Critical Calor SAS
Application granted granted Critical
Publication of US3481533A publication Critical patent/US3481533A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
    • F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans

Definitions

  • the present invention essentially relates to an improved fan with a directional impeller and more particularly t0 a fan effecting an alternate sweep.
  • the fan object of this invention is of a very improved type, the impeller being adjustable in all directions with respect to the support and being in addition advantageously of a type having blades with a variable pitch.
  • the fan may moreover automatically sweep a space area comprised within a determined angle, the opening of which may be varied at will. For instance, any automatic sweeping angle in the range from 0 to 180 may be selected, and said sweeping may be performed in any desired plane of orientation.
  • the fan conformable to the invention providing these improvements is especially remarkable in that the impeller, the driving motor and the casing of the latter are all mounted on a rotary shaft freely journaled in the supporting or fixing pedestal of the apparatus.
  • a connecting rod is mounted with one of its ends upon a second pivot solid with the aforesaid unit, while its other end is mounted on a rst pivot capable of taking several positions which determine the relative angular positions of said unit with respect to said pedestal.
  • said rst pivot is mounted for an eccentric rotation about the rotary shaft of said unit, the angular position of said first pivot about said shaft being automatically and elastically adjustable.
  • said second pivot articulating the connecting rod is moved to describe a circle about an axis parallel to said rotary shaft of said unit, for instance constituted by an eccentric solid with the secondary gear of a speed reducer or controller driven by the motor of the fan.
  • This arrangement determines an automatic sweeping of the fan impeller within a plane, the medial direction of the speed being determined by the angular position taken by said rst pivot of the connecting rod about the rotary shaft of the unit.
  • the position of said eccentric constituting the aforementioned second Ipivot of the connecting rod is adjustable. By varying the eccentricity of this pivot, it is possible to change the amplitude of the sweeping angle.
  • said 3,481,533 Patented Dec. 2, 1969 rotary shaft of the unit is journaled in an intermediate part forming a universal joint combination and a hub, said intermediate part rotating itself in the support of the apparatus.
  • the axis of rotation of the unit within the hub and the axis of rotation of the universal joint combination in the pedestal are orthogonal.
  • the rotational position of the universal joint combination -in the pedestal is controlled in an irreversible way by an appropriate system such as for instance a spur pinion meshing with a straight toothing provided on the ball. By acting on said spur pinion the sweeping plane of the fan may thus be adjusted at will.
  • FIGURE 1 is a general side view, partially sectional, showing an apparatus conformable to the present invention
  • FIGURE 2 shows in an exploded view, at a large scale and in perspective, a detail of embodiment illustrating the piece forming universal joint combination and hub, said -piece being a structural part of the apparatus shown in FIGURE 1;
  • FIGURES 3 to 6 show at a larger scale a structural part forming the secondary gear of a speed'reducer designed to control the alternate sweeping motion of the fan; these figures are namely:
  • FIGURE 3 illustrates said piece seen appreciably in the direction shown by arrow III of FIGURE 5;
  • FIGURES 4 and 5 are sectional views, the sections being made respectively following lines IV-IV and V-V on the FIGURE 3;
  • FIGURE 6 is another view of said piece seen appreciably in the direction shown by arrow VI of FIGURE 5;
  • FIGURE 7 shows in a side view an intermediate part supporting said second pivot of the connecting rod securing the directional adjustment of the impeller
  • FIGURE 8 is a view from above of the part shown in FIGURE 7;
  • FIGURES 9 to 12 illustrate a structural part engaging the part shown on FIGURES 3 to 6 to control the eccentricity of said second pivot articulating the connecting rod which -is used for the directional adjustment of the impeller; these iigures are namely:
  • FIGURE 9 is a view of said part seen in the direction shown by arrow IX of FIGURE 10;
  • FIGURE 10 is a sectional view, the section being made appreciably following the line X-X of FIGURE 9;
  • FIGURE 11 is another view of said part, seen in the direction shown by arrow XI of FIGURE 10;
  • FIGURE 12 is a sectional view of said piece, the section being made appreciably following the line XII--XII of FIGURE 11;
  • FIGURE 13 illustrates in a view from below the aforementioned connect-ing rod with its associate pivots as well as the structural parts on which said pivots are rotatively mounted;
  • FIGURE 14 is a basic diagram showing how the impeller performs its sweeping when it is mounted as shown in FIGURE 13;
  • FIGURES 15 to 18 show at a smaller scale various orientations and different operating positions of the apparatus.
  • an apparatus forming fan 20 conformable to the invention essentially comprises an impeller 21, for instance with three adjustably pitched blades 22, an electric motor 23 driving said impeller, a casing 24 housing the motor unit and supporting pedestal 25.
  • the adjustably pitched impeller may for instance be of the type described in the U.S. Patent No. 3,360,051 dated Dec. 26, 1967, in the name of the applicant. However, any impeller of a standard type may also -be used.
  • the unit constituted by the impeller, the driving motor and the casing of the latter may be rotatable with respect to the pedestal by means of a rotary shaft 26 freely journaled in an intermediate part 27. which forms altogether a universal joint combination and a hub solid with pedestal 25.
  • the part 27, which will be described in detail hereinafter, is rotatively mounted about an axle 28 orthogonal with said shaft 26, the axle 28 being supported by bearings or fianges solid with the pedestal 25.
  • the rotation of the universal joint combination 27 about the axle 28 is performed by means of a spur pinion 29 conrtrolled by a knurled knob 30, the threading of said spur pinion 29 meshing with a straight toothing of said ball, as may be clearly seen especially on FIGURE 2.
  • the rotation of the aforementioned unit (impellerdriving motor-motor casing) with respect to the pedestal 2S of the apparatus is limited by a connecting rod 31, a second pivot 32 of which is mounted solid with said unit, while its first pivot 33 (FIGURE 13) is mounted solid with a disk 34 rotating about the axis of shaft 26.
  • the first pivot 33 of the connecting rod 31 is mounted eccentrically with respect to the axis of shaft 26.
  • the disk 34 may be automatically and elastically placed in various angular positions about the axis of shaft 26 by means of an elastic blade 35, solid with disk 34 and meshing with the teeth 36 of a crown 37, itself solid, as clearly appearing in FIGURE 2 with the intermediate part 27 forming said universal joint combination and said hub. It may in addition be noted in this FIGURE 2, that in 38 is indicated the proper hub of said piece 27 wherein the shaft 25 is journaled and that the locking of said shaft 26 in the hub is obtained by engaging the axle 28 in a necked portion 39 on said shaft 26.
  • FIGURE 2 may be seen the straight toothing of the universal joint combination 27 which, by co-operating with the threads of the spur pinion 29 (FIGURE 1), allows to adjust the position of the fan impeller about the axis of axle 28.
  • the assembly controlling the sweeping motion of the impeller essentially comprises a gear 41, a structural part forming slide 42 and a part 43 exhibiting skews and controlling the position of slide 42.
  • the gear system -41 is more particularly illustrated by FIGURES 3 to 6, While the slide 42 appears in FIGURES 7 and 8 and the part 43 in FIGURES 9 to l2.
  • the secondary gear 41 of the speed reducer or controller is driven by (not represented) pinions which mesh with a pinion 54 mounted at one end of the motor shaft driving the fan impeller (FIGURE 1).
  • the gear 41 exhibits a pass 44 (FIGURE 5) 'through which passes slide 42 which is guided in a rectilinear motion (following the direction indicated in yy on FIG- URE 13) by the rectilinear ribs 45 (FIGURES 3 and 4) bordering said pass 44.
  • Said gear 41 exhibits also an elongated hole 46 through which passes the crank pin 32 constituting said second pivot of connecting rod 31 and solid with slide 42 (FIGURE 7), this crank pin 32 moving also following the direction yy of passage y44.
  • this arrangement allows to vary the excentrlclty of crank pin 31 with respect to the axis of pivot pin 47 (FIGURES 1 and 13) in said gear 41.
  • the slide 42 On its face opposite to that bearing crank pin 32, the slide 42 exhibits a toothed rack 48 engaging the skews 49 of part 43.
  • the rotation of skews ⁇ 49 meshing with the toothed rack 48 causes the translatory shifting motion of slide 42 within the pass 44.
  • skews 49 are 4 helical and mesh with a straight toothed rack 48, this motion is irreversible.
  • the rotary motion of disk ⁇ 43 controls the translatory motion of slide 42, but it is not possible to control the rotary motion of part 43 by a translatory motion of slide 42.
  • the device operates in the following way: the whole fan is articulately mounted upon its supporting pedestal 25 in a plane perpendicular to the pivot axle 28 of balland-socket joint 27, the angle of inclination taken by the apparatus on this pivot being determined and adjusted by means of spur pinion 29 meshing with the straight toothing 40 and controlled by the knurled knob 30.
  • the apparatus may be more or less tilted so as to be used in various positions, as illustrated in FIGURES 15 to 18.
  • FIGURES l5 and 16 the apparatus is supported resting on its appreciably horizontal pedestal 25, while in FIGURES 17 and 18, said support 25 is secured to a vertical wall. In all cases, the correct inclination of the apparatus is obtained by acting on knurled knob 30.
  • the whole apparatus may be turned about the rotary shaft 26 rotating in the hob 38 of the intermediate part 27.
  • the shaft of the driving motor 23 rotates to actuate the pinion 54 which constitutes the inlet of a (not represented) speed reducer or controller of which the gear I41 is the outlet pinion.
  • This gear 41 thus rotates at a low speed.
  • it By rotating about its pivot pin 47, it rotatorily drives along the slide 42 which is mounted translatorily sliding within pass 44.
  • the teeth 48 of the rack solid with the slide 42 when engaging the skews 49 of part 43, also rotate said part about the common axis of revolution constituted by pivot pin 47.
  • the part 43 is normally mounted for a smooth friction within the gear 41, as may be seen especially on FIGURE l.
  • crank pin 32 is given a position with some excentricity about pivot pin 47 which is also the axis of rotation of the gear 41, as shown in FIGURE 13.
  • this gear 41 rotates at a low speed, for instance in the direction indicated by arrow F (FIG- URE 13)
  • the crank pin 32 which is locked in the gear 41 by the irreversible transmission constituted by the toothed rack 48 engaging skews 49, rotates about pivot pin 47 simultaneously with said gear 41.
  • the disk 34 being normally locked in a stationary position by the elastic blade 35 bearing against the teeth 36 provided on the crown 37 of the universal joint combination 27 (which is fixed for rotation in the pedestal 25), the first pivot 33 of the connecting rod 31 constitutes normally a fixed point.
  • crank pin 32 is normally obliged to move along a circle 52 (FIGURE 14) the centre of which is coincident with the axis of the first pivot 33.
  • the pivot pin 47 is fixed into the unit 21- 24 of the apparatus. As this unit rotates about the rotary shaft 26, the pivot pin 47 is hence obliged to follow a circumference 53 about the axis indicated in 55 on the FIGURE 14, this axis being also that of the rotary shaft 26.
  • FIGURE 14 are schematised nine of these successive positions indicated by arrows bearing reference numerals 1 to 9, the origin of every arrow corresponding to the axis of pivot pin 47, while the point of the arrow corresponds to the axis of the second pivot 32.
  • the eccentricity given here to pivot 32 with respect to pivot pin 47 an alternate sweeping is thus obtained, covering the angle 56.
  • the sweeping angle 56 ⁇ is more or less open according to the eccentricity given to pivot 32, said angle being equal to zero when there is no eccentricity and ranging almost to for a maximum eccentricity.
  • the eccentricity is selected by simply turning the skews 49 with the help of the control knob 51 which correspondingly shifts in translation the slide 42.
  • An oscillating and orientable fan driven by a motor and adapted to pivot about a pedestal with an alternate sweeping motion said fan embodying in combination, a casing containing said motor and larticulated about said pedestal, an impeller mounted spaced apart from said casing and actuated by said motor, a rotary shaft freely journalled in said pedestal and about which said casing is actuated in a circular motion, a universal joint combination rotatably mounted in said pedestal and forming a hub which said rotary shaft freely turns, oscillating means comprising ⁇ a connecting rod mounted at one of its endS on a first pivot so as to be eccentrically rotated about said rotary shaft, said first pvot being mounted on a disk which is elastically and concentrically locked against a peripheral portion of said hub in any langular orientable position, whereas the opposite end of said connecting rod provides a Second pivot which is solid with said casing, said second pivot including a slide, and a crank-pin mounted in said slide and the axis of which is parallel to said said stat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US708613A 1967-04-24 1968-02-27 Directional fan Expired - Lifetime US3481533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR103998A FR1528735A (fr) 1967-04-24 1967-04-24 Ventilateur à hélice orientable

Publications (1)

Publication Number Publication Date
US3481533A true US3481533A (en) 1969-12-02

Family

ID=8629540

Family Applications (1)

Application Number Title Priority Date Filing Date
US708613A Expired - Lifetime US3481533A (en) 1967-04-24 1968-02-27 Directional fan

Country Status (5)

Country Link
US (1) US3481533A (US20030220297A1-20031127-C00009.png)
BE (1) BE711034A (US20030220297A1-20031127-C00009.png)
DE (1) DE1628236B2 (US20030220297A1-20031127-C00009.png)
ES (1) ES349955A1 (US20030220297A1-20031127-C00009.png)
FR (1) FR1528735A (US20030220297A1-20031127-C00009.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832576A (en) * 1985-05-30 1989-05-23 Sanyo Electric Co., Ltd. Electric fan

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325425A (en) * 1941-02-05 1943-07-27 Westinghouse Electric & Mfg Co Air translating apparatus
US2813673A (en) * 1953-07-09 1957-11-19 Gilbert Co A C Tiltable oscillating fan
US2900127A (en) * 1955-02-10 1959-08-18 Gilbert Co A C Axial flow fan with variable direction of oscillating range
US3147639A (en) * 1961-02-10 1964-09-08 Braskamp W H Nv Table ventilator
US3228260A (en) * 1962-02-26 1966-01-11 Braskamp W H Nv Table ventilator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325425A (en) * 1941-02-05 1943-07-27 Westinghouse Electric & Mfg Co Air translating apparatus
US2813673A (en) * 1953-07-09 1957-11-19 Gilbert Co A C Tiltable oscillating fan
US2900127A (en) * 1955-02-10 1959-08-18 Gilbert Co A C Axial flow fan with variable direction of oscillating range
US3147639A (en) * 1961-02-10 1964-09-08 Braskamp W H Nv Table ventilator
US3228260A (en) * 1962-02-26 1966-01-11 Braskamp W H Nv Table ventilator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832576A (en) * 1985-05-30 1989-05-23 Sanyo Electric Co., Ltd. Electric fan

Also Published As

Publication number Publication date
FR1528735A (fr) 1968-06-14
DE1628236A1 (de) 1971-10-07
DE1628236B2 (de) 1976-12-09
ES349955A1 (es) 1969-04-16
BE711034A (US20030220297A1-20031127-C00009.png) 1968-07-01

Similar Documents

Publication Publication Date Title
EP0059073B1 (en) Electrically-operated mirror angle adjusting device
US7861633B2 (en) Angular adjustment apparatus for a miter saw
US4541294A (en) Drive assembly for an astronomical telescope
US3481533A (en) Directional fan
JP3104385B2 (ja) 測量機の粗微動装置
JPS60262B2 (ja) ステアリングシヤフトのチルト機構
US2294437A (en) Tilting head device
GB2054794A (en) Adjustment mechanism
US4095483A (en) Exterior rear view mirror for vehicles
KR0173817B1 (ko) 전조등의 광축조정장치
JPS6132180B2 (US20030220297A1-20031127-C00009.png)
US3828623A (en) Remote outside rearview mirror
US4611501A (en) Remote control apparatus
US3474362A (en) Detented presettable tuner,particularly for uhf television
US3069914A (en) Turn-limiting mechanism
US3228260A (en) Table ventilator
US3529478A (en) Tuning device
US3031803A (en) Grinder or like machine tool
US3302335A (en) Window control device
US4221136A (en) Sewing machine and speed adjustment mechanism thereof
US3272075A (en) Gear finishing machine
GB1573958A (en) Camera having means for extension and retraction of its lens
JPH0624725Y2 (ja) 測量機の視準用粗微動装置
US5046379A (en) Remote control apparatus
JPH0659311A (ja) シャッタ装置