SU1643799A1 - Domestic fan - Google Patents

Description

(2l) to63079 / 06 (22) 13 „02.89

 (46) 04/23/91. Bul № 15 (72) A, JSC Snegov

(53) 621e63-523 (03808)

(56) U.S. Patent No. 3,167,130, cl. 416-83, published in 1965.

(54) HOUSEHOLD FAN

(57) the invention improves performance by cyclically bending the blades (L) 4 pivotally mounted on the casing (K) 2 of the receiving mechanism powered by the electric motor 3. Cyclic bending L 4 is carried out by driving levers 5, one end of which is fixed on L4, and the other, via a crank mechanism, is connected to the shaft 3 of an electric motor.

the mechanism is made in the form of a fixed bracket on K 2 brackets and iarkircho associated with them in their own part of the swivel arm. One arm of each of them is in contact with the base L 4, and the other has a longitudinal groove at its end. fixing it cha L 4 "The hinged joint L 4 and K 2 is effusive in the form of a bone rotated around its axis with a ROTAL bone BOLT 12 mounted on the base L l and concentrated in the bushing 12 with the possibility of axial movement of the ring P The driving lever 5 in the middle part is articulated with a ring, 1 Goat. L-ly, 4 Il.

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C L / ii, Ј $ L

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This invention relates to a fan casing, in particular to a domestic fan.

The aim of the invention is to increase productivity.

Fig. 1 shows a domestic fan; FIG. 2 is a view along arrow A in FIG. 1; on league. 3 is a section BB in FIG. one; on League 4 - diagram of the trajectory of the blade0

The household fan comprises a housing 2 mounted on the base 1 of the drive mechanism, an electric motor 3 attached thereto and pivotally connected to the housing 2 evenly spaced around the circumference of the blade 4, equipped with drive lines 5a. One end of each lever 5 is fixed to

the blades using the nozzle 6, and the other through the crank mechanism 7 SVYAZRN with the shaft 8 of the electric motor 3,

The drive mechanism is made in the form of brackets 9 mounted on the housing 2 to the hinge-connected arms with their middle part. 00 One arm of each lever 10 contacts the base I1 of the blade 4, and the other has a longitudinal groove at its end (not shown ), in which the driving lever 5 is placed on the side of its fastening on the blade 4. The hinged connection of the blade 4 in the housing 2 is made as placed in the opening of the housing 2 and can be rotated around the axis of the sleeve tc

Node 4 on the base 11, and concentrically placed in the sleeve 12 with the possibility of axial movement of the ring 13, Each drive lever 5 is located in the hole of the corresponding ring 13 and in its middle: through the hinge 14 is associated with it.

The blades 4 can be made flexible, can have a variable cross-section along their length, and a cut-out 15 can be made at the base 11 of the blade 4 to accommodate the pivoting 10 and the driving 5 levers.

The fan operates as follows.

At the time of rotation of the shaft 8, the crank mechanism 7 transmits to the driving lever 5 a reciprocating movement. The end of the lever 5, fixed to the blade 49, bends it and at the same time, due to the engagement through the groove with the rotary lever 10, turns the latter around the bracket 9, which through its end The base 11 rotates the blade around its axis at a given angle of installation. Further rotation of the shaft 8 leads to the release of the blade to its original position, the lever 10 rotates the blade around its axis. “Next, the drive lever 5 pulls the end of the blade 4 towards itself, the rotary lever 10 turns the blade 4 into

Claims (1)

1. A household fan containing a motor-mounted housing of the drive mechanism, an electric motor attached to it and pivotally connected to the housing, blades evenly spaced around the circumference, equipped with driving levers, one end of each of which is fixed to the blade, and the other through a crank mechanism with an electric motor shaft, characterized in that, in order to increase productivity, the drive mechanism is made in the form of brackets fixed on the case and pivotally connected with them in its middle Asy of two shoulders pivotal levers, one shoulder of each of which is in contact with the blade base, and the other at its end has a longitudinal groove in which the drive lever is placed on the side of its fixing on the blade, the hinge joint of the blade to the body with the possibility of rotation around its yoke sleeve, mounted on the base of the blade, and concentrically placed in the sleeve with the possibility of axial movement of the ring, each an angle equal to the negative angle us- 35 drive lever is located in the hole the corresponding ring and in its middle part are broadly associated with it, about The movement of the peripheral end of the blade 4 and its base 11 is shown in FIG. 3. Thus, the movement of the peripheral end of the blade 4 along the line describing the shape of the figure eight, simultaneously turning in each phase of movement at its predetermined angle of 40 45 2. A fan according to Claim 1, characterized in that the blades are made flexible, have a variable cross-section along their length, and a cutout is made at the base of the blade for accommodating rotary and driving levers therein. 0 , 0 five 0 ki provides movement of air flow in one direction Invention Formula 1. A household fan containing a motor-mounted housing of the drive mechanism, an electric motor attached to it and pivotally connected to the housing, blades evenly spaced around the circumference, equipped with driving levers, one end of each of which is fixed to the blade, and the other through a crank mechanism with an electric motor shaft, characterized in that, in order to increase productivity, the drive mechanism is made in the form of brackets fixed on the case and pivotally connected with them in its middle Asy of two shoulders pivotal levers, one shoulder of each of which is in contact with the blade base, and the other at its end has a longitudinal groove in which the drive lever is placed on the side of its fixing on the blade, the hinge joint of the blade to the body with the possibility of rotation around its yoke sleeve, mounted on the base of the blade, and concentrically placed in the sleeve with the possibility of axial movement of the ring, each 5 the drive lever is located in the hole about 2. A fan according to Claim 1, characterized in that the blades are made flexible, have a variable cross-section along their length, and a cutout is made at the base of the blade for accommodating rotary and driving levers therein. l 72Ч / т штъ //////////% ///// & FIG. one C B AND Fie.2 eleven AT 73 Thebes.3 Editor T. Ivanova Compiled by Y. Antipov Tehred L. Serdyukova Order 1458 Circulation 370 VINILI of the State Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab. Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Fig.b Proofreader L. Pilipenko Subscription