JP2014181893A - Circulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of wear and looseness of connected portions even if an oscillation work is continued for longer hours and enable a smooth and silent oscillation to be realized while preventing occurrence of irregular sound accompanied by wear and looseness even under longer hour continuation of oscillation work at a circulator in which a case main body is oscillatably connected to a base block.SOLUTION: A central shaft 80 arranged on a turning axis of a circulator main body 1 is oscillatably supported on a base block 2. A bottom part of the circulator main body 1 is provided with an oscillation motor 75 and a rotation transmittance gear of the oscillation motor 75. A pivot shaft part 77 is arranged near the central shaft 80 of the base block 2. The rotation transmittance gear and the pivot shaft part 77 are connected by a connecting link 73 and the circulator main body 1 can be turned in a rightward or leftward around the central shaft 80 through a circular motion of the rotation transmittance gear. The connecting link and the pivot shaft part are connected in such a way that a displacement of upward or downward motion of the connecting link can be absorbed when the circulator is turned.

Description

  The present invention relates to a circulator for mainly enhancing the cooling and heating effect by stirring indoor air.

  Circulators for agitating room air when using an air conditioner to make the room temperature uniform and enhancing the air conditioning effect are widely known. In general, a circulator has a relatively simple structure in which a case body equipped with blades and an electric motor is provided on a leg portion of a base so that the depression angle can be adjusted, and is often used on a floor or a tabletop (Patent Document 1). 2). However, although the circulators described in Patent Documents 1 and 2 can adjust the depression angle in the vertical direction, they cannot swivel (swing) in the horizontal direction, so that there is a problem that a sufficient air agitation effect cannot be expected. is there.

On the other hand, a circulator having a swing mechanism for a case main body that houses blades and an electric part has been proposed (Patent Document 3). This swing mechanism has a structure in which a case main body is pivotally attached to an upper portion of an outer frame body, and the pivot attachment shaft and the output shaft of the swing motor are connected by a cam and a link. However, the pivot shaft is simply inserted into the outer frame so as to be pivotable, and the connecting part of the link and the cam is only fastened with screws. An error occurs in the swivel stroke due to wear of the contact portion of the frame body, loosening of the screws, and the like, which causes abnormal noise during swinging and obstructs smooth swinging.
A commercially available fan has a swing mechanism, but the fan uses large blades and a powerful motor for the purpose of cooling the human body. Since it is mounted so as to be able to turn and its basic configuration is different from the circulator, its swing mechanism cannot be simply applied to the circulator.

Utility Model Registration No. 3104900 Utility Model Registration No. 3167613 JP 61-92793 A

  The present invention has been proposed in order to solve the above-described problems, and in a circulator in which a base and a case main body to which a blade is attached are connected so as to be able to swing, the connection portion is firmly connected. The purpose is to provide a circulator that can realize smooth and quiet swinging by preventing the occurrence of abnormal noise associated with this, even if the swinging is continued for a long time. To do.

In order to solve the above-mentioned problem, in the invention according to claim 1, in a circulator comprising a base and a circulator body provided on the top of the base so as to be able to swing,
A central axis provided on the pivot axis of the circulator body is supported so as to be pivotable on the pivot axis of the base,
At the bottom of the circulator main body, a swing motor and a rotation transmission gear of the swing motor are provided, and a pivot portion is provided near the central axis of the base,
The rotation transmission gear and the pivot portion are connected by a connecting link, so that the circulator body can turn in the left-right direction around the central axis as the rotation transmission gear rotates.
In addition, the connection link and the pivot portion are connected so as to absorb the displacement of the connection link when the circulator is turned.

  In the invention according to claim 2, the pivot portion is configured such that a joint member is vertically inserted into a pivot fixed to the base, and one end portion of the connection link is inserted into the joint member. It is connected.

  The invention according to claim 3 is characterized in that a spherical portion is formed in the joint member, and one end portion of the connection link is fitted into the spherical portion.

  In the invention according to claim 4, the central axis is fixed to the circulator body, and the bottom surface of the central axis is pivotally supported by a seat portion provided on the base. It is characterized by.

  In the invention according to claim 5, a support rod having a tip formed in a conical shape is protruded from the pedestal portion of the base, and the bottom surface portion of the central axis is formed on the support rod. It is supported by the front-end | tip part of.

  Further, in the invention according to claim 6, an insertion rod portion is formed at a lower end portion of the pedestal portion of the base, and the support rod is inserted into the insertion rod portion. The protrusion height from the seat portion is adjustable.

  In the invention according to claim 7, the rotation transmission gear includes a drive gear fixed to the output shaft of the swing motor and a driven gear meshing with the drive gear, One end of the connecting link is pivotally attached to the driven gear, and the other end is pivotally attached to the pivot shaft.

  According to the present invention, in the circulator in which the base and the case main body equipped with the blades are connected so as to be able to swing, the connecting part can be firmly connected, and the connecting part is worn even if the swinging is continued for a long time. Smooth and quiet swinging can be realized by preventing the occurrence of abnormal noises.

The whole circulator front view which shows embodiment of this invention Perspective view of the circulator viewed from the bottom A perspective view seen from the bottom direction with the base of the circulator removed. Enlarged sectional view of the circulator near the central axis Half sectional perspective view of the circulator Perspective view of eccentric cam in the circulator The perspective view seen from the bottom face direction of the circulator which shows other embodiment of this invention. A perspective view seen from the bottom direction with the base of the circulator removed. Longitudinal section of the circulator Enlarged sectional view of the circulator near the central axis Bottom view with the circulator base removed

  Embodiments of the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. A circulator 100 according to the embodiment shown in FIGS. 1 to 6 includes a circulator body 1 and a base 2 on which the circulator body 1 is mounted so as to be turnable (swingable) at a predetermined angle in the left-right direction (horizontal direction). ing. The circulator body 1 includes a case body 10 equipped with blades 11 and a blade rotation motor, and a support body 20 that supports the case body 10 so that the depression angle can be adjusted in the vertical direction. 2 and 3, reference numeral 15 denotes a power cord.

  The case body 10 is formed from a synthetic resin material such as polypropylene in a substantially drum shape, and the front panel 12 is attached to the front opening of the case body 10 and the rear panel is attached to the rear opening. ing. The front control panel 12 is formed with spiral ribs 12a to generate a whirl, and the rear panel is formed with ribs that reduce suction resistance. The front panel 12 is made of a synthetic resin material having high impact resistance.

  As shown in FIG. 3, the support 20 has an ellipsoidal bottom portion 20a, and case body support legs 20b and 20b are erected integrally with the bottom portion 20a on the left and right side portions on the upper surface side of the bottom portion 20a. Yes. The case body support legs 20b and 20b are pivotally supported so that both the left and right side portions of the case body 10 can be raised and lowered. Although not shown in detail, the depression angle adjustment unit 23 increases the depression angle step by step. It can be changed. Various switch buttons 24 such as a power switch, a swing switch, and an air volume change switch are arranged in parallel at the center of the upper surface of the bottom portion 20a.

  As shown in FIG. 3, the bottom 20a of the support 20 has a hollow inside, and the swing mechanism 30 is housed inside the hollow. The swing mechanism 30 includes a fixed plate 31, a swing motor (not shown) fixed to the back surface of the fixed plate 31, an eccentric cam 33 fixed to the output shaft 32 of the swing motor, and will be described later. Thus, a fixed shaft 36 fixed to the base 2 and an arcuate connection link 34 having one end pivotally attached to the eccentric cam 33 and the other end pivotally attached to the fixed shaft 36 are provided.

  Further, as shown in FIGS. 4 and 5, the central shaft 35 is fixed by a fixing screw 60 on the pivot axis of the support 20 (circulator body 1) in the fixing plate 31. The fixed plate 31 is fixed to a support frame 37 formed inside the bottom portion 20a (see FIG. 3), and the central shaft 35 is rotatably inserted into a bearing member 52 of the base 2 as will be described later. The swing motor (including the eccentric cam 33 fixed to the output shaft 32) and the fixed shaft 36 are provided at positions away from the central shaft 35, respectively.

  As shown in FIG. 2, the base 2 is an elliptic cylinder having a shape corresponding to the case body bottom 20a, and reinforcing ribs 50 are formed in a lattice shape inside. As shown in detail in FIGS. 4 and 5, an annular seat 53 is formed on the pivot axis of the support 20 (circulator body 1) on the upper surface 2 a of the base 2. A cylindrical bearing member 52 having a flange portion 52a formed at the upper end portion is inserted into the shaft insertion hole 53a opened in the seat portion 53. Here, the bearing member 52 is made of synthetic resin.

  The shaft member of the central shaft 35 is inserted into the bearing member 52. A cutout groove 35b is formed in the outer periphery of the lower end of the central shaft 35, and an E-ring 56 serving as a locking piece is press-fitted into the cutout groove 35b. Further, a flat washer 57 made of metal and a flat washer 58 made of synthetic resin are interposed between the E ring 56 and the lower end portion of the pedestal portion 53 (the washers 57, 58 serve as the first washer). A flat washer 59 (second washer) made of synthetic resin is interposed between the upper surface flange portion 35 c of the central shaft 35 and the upper surface flange portion 52 a of the bearing member 52.

  By interposing these E-rings 56 and the washers 57, 58, 59, when the center shaft 35 is fastened to the fixing plate 31 with the fixing screw 60, the support 20 (circulator body 1) and the base 2 are moved by the center shaft 35. The bearing member 52 of the central shaft 35 is firmly fixed to the seat portion 53 of the base 2 while being firmly connected. Further, since the center shaft 35 is inserted into the shaft insertion hole 53a via the bearing member 52, there is no clearance with the shaft insertion hole 53a, and the wear of the insertion hole 53a due to the turning of the center shaft 35 and abnormal noise caused by the wear. Generation | occurrence | production can be prevented and rotation of the support body 20 (circulator main body 1) centering on the center axis | shaft 35 also becomes smooth.

  The fixed shaft 36 is fixed near the central axis 35 of the base 2. The fixed shaft 36 is inserted into a shaft insertion hole 2b formed near the seat portion 53 of the base upper surface portion 2a (see FIG. 5), and the fixed shaft head portion 36a is locked to the shaft insertion hole 2b. A convex sleeve member 40 made of synthetic resin is inserted into the shaft portion of the fixed shaft 36. As shown in detail in FIG. 4, the other end portion of the connecting link 34 is connected to the small diameter portion 40a of the sleeve member 40. The connecting hole 34a formed in the is inserted. A fastening nut 44 is screwed into the lower end portion of the fixed shaft 36, and a spring washer 43 and a metal flat washer 42 are interposed between the nut 44 and the lower end portion of the sleeve member 40 (washer). 43 and 42 are the third washers). Furthermore, a synthetic resin flat washer 41 (fourth washer) is interposed between the sleeve member large-diameter portion 40b and the connecting link 34 in the vertical direction and between the metal flat washer 42 and the connecting link 34 in the vertical direction. It is disguised. Further, a notch groove 36b is formed on the outer periphery of the lower end of the fixed shaft 36, and an E-ring 45 serving as a locking piece is press-fitted into the notch groove 36b.

  In this way, the fixed shaft 36 and the connecting link 34 are connected via the sleeve member 40, and the fixed shaft 36 is firmly attached to the base 2 by tightening the nut 44 with the washers 41, 42, 43 interposed therebetween. Fixed. In addition, there is no clearance between the shaft portion of the fixed shaft 36 and the shaft insertion hole 2b, so that wear of the shaft insertion hole 2b and generation of abnormal noise due to the clearance can be prevented. Become smooth.

  Here, the case where the fixed shaft 36 and the connecting link 34 are connected has been described as an example, but the eccentric cam 33 and the connecting link 34 can also be connected with the same configuration.

  As shown in FIG. 6, the output shaft 32 of the swing motor and the eccentric cam 33 are fixed by screwing a fixing screw 33 a from the outer end side surface of the eccentric cam 33 in a direction perpendicular to the output shaft 32. In this way, as compared with the case where the output shaft 32 is fixed in the axial direction with the fixing screw, the load on the output shaft 32 during rotation of the swing motor is reduced, and the eccentric cam 33 is smoothly rotated.

  When the circulator body 1 of the circulator 100 is swung, when the corresponding switch 24 is pressed, the eccentric cam 33 fixed to the output shaft 32 of the swing motor rotates eccentrically and is pivotally attached to the eccentric cam 33. One end of the connected link 34 performs a circular motion. Since the other end portion of the connecting link 34 is pivotally attached to a fixed shaft 36 fixed to the base 2, the circular motion causes the circulator body 1 to move in the left-right direction according to the radial distance of the circular motion around the central shaft 35. Will turn (swing).

  7 to 11 show another embodiment of the present invention. The circulator 200 of this embodiment is different in the swing mechanism 70 from the above-described embodiment, and the circulator body 1 and the circulator body 1 can be turned at a predetermined angle in the left-right direction (horizontal direction) (can be swung). The basic configuration of the base 2 to be mounted on is the same. However, the structure of the attachment part of the swing mechanism 70 in the circulator main body 1 and the base 2 is different. The basic structure of the case body 10 equipped with the blades 11 and the blade rotation motor, and the support body 20 that supports the case body 10 so that the depression angle can be adjusted in the vertical direction is the same as that of the above-described embodiment.

  As shown in FIGS. 8 and 11, the swing mechanism 70 accommodated in the cavity of the bottom 20 a of the support 20 is fixed to the fixing plate 76 fixed to the support frame 79 and the back surface of the fixing plate 76. Swing motor 75 (see FIGS. 9 and 10), a drive gear 71 fixed to the output shaft 75a of the swing motor 75, and a driven gear that is pivotally supported by the fixed plate 76 and meshes with the drive gear 71. 72 and an arcuate connecting link 73 having one end pivotally attached to the driven gear 72 and the other end pivotally attached to a pivot portion 77 fixed to the base 2. A central axis 80 is fixed on the pivot axis of the support 20 (circulator body 1) in the fixed plate 76.

  On the other hand, as shown in FIGS. 9 and 10, a seat 90 for receiving the bottom surface of the central shaft 80 is formed on the pivot axis of the support 20 (circulator body 1) on the base upper surface 2a. Yes. An insertion flange 91a projects from the lower end of the pedestal 90, and a support flange 91 having a conical tip is inserted into the insertion flange 91a. The bottom of the central shaft 80 is inserted by the distal end. The center is supported. The height of the support rod 91 protruding from the seat portion 90 can be adjusted by a nut 93.

  Further, as shown in FIGS. 9 and 10, a pivot portion 77 is fixed to the bottom portion of the base 2 near the central shaft 80. The pivot portion 77 is made up of a metal pivot shaft 77a that is erected and fixed to the bottom surface portion of the base 2, and a joint member 77b made of aluminum or the like that is fitted to the shaft portion so as to be vertically movable. A spherical part 77c is formed on the upper part of the joint member 77b, and a connecting hole 73a formed in the other end of the connecting link 73 is fitted into the spherical part 77c. By connecting the spherical portion 77c and the connecting link 73, the joint member 77b slides up and down the pivot 77a even when the other end portion of the connecting link 73 moves up and down during operation. It can be absorbed by part 77c.

  According to this embodiment, when the swing motor 75 is driven and the drive gear 71 fixed to the output shaft 75a rotates, the driven gear 72 that meshes with the drive gear 71 also rotates. Along with this, one end portion of the connecting link 73 pivotally attached to the driven gear 72 circularly moves, but the other end portion of the connecting link 73 is pivotally attached to the pivot portion 77 fixed to the base 2. This circular motion causes the circulator body 1 to turn (swing) in the left-right direction around the central axis 35 according to the radial distance of the circular motion.

  According to the above-described embodiment, the swing mechanism is mainly composed of the gear and the connecting link, so that the load of the swing motor is dispersed and the rotation transmission efficiency is improved. Can also be prevented.

DESCRIPTION OF SYMBOLS 1 Circulator body 2 Base 10 Case body 20 Support body 30 Swing mechanism 31 Fixed plate 32 Swing motor output shaft 33 Eccentric cam 34 Connection link 35 Center shaft 36 Fixed shaft 40 Sleeve member 41 4th washer 42,43 3rd washers 44 the nut 52 bearing member 56 E-ring (locking pieces)
57,58 First washer 59 Second washer 60 Fixing screw

Claims (7)

In a circulator comprising a base and a circulator body provided on the top of the base so as to be able to swing,
A central axis provided on the pivot axis of the circulator body is supported so as to be pivotable on the pivot axis of the base,
At the bottom of the circulator main body, a swing motor and a rotation transmission gear of the swing motor are provided, and a pivot portion is provided near the central axis of the base,
The rotation transmission gear and the pivot portion are connected by a connecting link, so that the circulator body can turn in the left-right direction around the central axis as the rotation transmission gear rotates.
And the said connection link and the said pivot part are connected so that the displacement of the up-and-down movement of the said connection link can be absorbed at the time of rotation of the said circulator.   The pivot portion is configured such that a joint member is vertically inserted into a pivot fixed to the base, and one end of the connection link is connected to the joint member. The circulator described.   The circulator according to claim 2, wherein a sphere portion is formed in the joint member, and one end portion of the connection link is fitted into the sphere portion.   The center axis is fixed to the circulator body, and a bottom surface portion of the center axis is pivotally supported by a seat portion provided on the base. The circulator described in Crab.   A support rod having a conical tip formed on the base portion of the base is projected, and the bottom surface of the central shaft is supported by the tip of the support rod. The circulator according to claim 4.   An insertion portion is formed at the lower end of the base portion of the base, and the support rod is inserted into the insertion portion. The height of the support rod can be adjusted from the base portion. The circulator according to claim 5.   The rotation transmission gear has a drive gear fixed to the output shaft of the swing motor and a driven gear meshing with the drive gear, and one end of the connection link is pivotally attached to the driven gear. The circulator according to any one of claims 1 to 6, wherein the other end portion is pivotally attached to the pivot portion.