JPH0633848B2 - Equipment swing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a swinging device for a device, which includes a fan,
Used in electric stoves, etc.

(B) Conventional Technique As a technique prior to the present invention, there is a swinging device described in Japanese Utility Model Laid-Open No. 58-30797 or Japanese Patent Laid-Open No. 62-182498. The swinging devices described in these publications pivotally support a main body of a device so that the main body can swing right and left, and a swinging electric motor that reciprocally pivots the shaft is mounted on the base. Also serves as a swinging electric motor and a pivot support member. The swing motor and the pivot are connected by a swing transmission mechanism.

(C) Problems to be Solved by the Invention In the conventional technology, it is necessary to form a deep shaft support hole in the base to stabilize the rotation of the pivot shaft, and the shaft between the pivot shaft and the output shaft of the swing motor. The distance is not stable, and excessive force acts on the swing transmission mechanism, preventing smooth swinging.

The present invention has been made in view of the drawbacks of the prior art, and an object thereof is to provide a swinging device of an apparatus capable of performing stable and smooth swinging.

(D) Means for Solving the Problem The present invention is a pivot for supporting the main body of the device so that it can swing freely from side to side, and a base having a shaft support hole portion for axially supporting the shaft.
It is fixed to the base, forms a bearing hole for supporting the pivot shaft protruding into the base, and is attached to the mounting plate for mounting the swing motor and the output shaft of the swing motor, and is formed on the base. And a swinging link that connects the cam body and the device main body side and that swings the device main body by the rotation of the swinging electric motor.

(E) Operation According to the configuration of the present invention, the pivot shaft is pivotally supported by the shaft support hole portion of the base and the bearing hole of the mounting plate, so that the pivot shaft rotates without touching. Also, by mounting the swing motor on the mounting plate that pivotally supports the pivot, the distance between the pivot and the output shaft of the swing motor becomes stable, and the shaft is supported by the bearing formed on the base of the cam body. By doing so, the cam body and the output shaft of the swinging electric motor do not move due to the force associated with the swinging motion of the device, and the device stably rotates.

(F) Embodiments The configuration of the present invention will be described by embodying the configuration of the present invention based on the structure using the swinging device of the present invention in the illustrated fan 1.

9 is a front view of the fan 1, and FIG. 10 is a right side view of the fan 1. The fan 1 is a base 3 in which a swinging electric motor 2 is installed.
And a rotation support base 4 pivotally supported on the base 3 so as to reciprocate left and right by the swinging electric motor 2, and a fan stand 5 is formed by the base 3 and the rotation support base 4. There is. The fan stand 5 has a hemispherical outer shape, and the outer surface (upper surface) of the base 3 and the outer surface (upper surface) of the rotary support 4 form a continuous surface.

A fan main body 6 is supported on the rotation support base 4 so that the elevation angle can be adjusted. The fan main body 6 includes a support ring 8 having a pivotal connecting portion 7 formed at a lower portion thereof, a motor support guard body 11 and a guard body 12 which are mounted by fitting outer rings 9 and 10 to the support ring 8, and a motor support. Electric motor 14 fixed to the mounting portion 13 at the center of the guard body 11
And a blower blade 16 mounted on the rotating shaft 15 of the electric motor 14.

The support ring 8 is made of synthetic resin, and has guard bodies 11,1 on its inner surface.
A plurality of protrusions for fitting and holding the second outer rings 9 and 10 are formed. An elastic piece 17 is formed on the lower portion of the support ring 8 to facilitate removal of the guard body 12. The guard body 12 constitutes a front guard body located on the blowing side of the blower blade 16,
It has an ornament 18 in the center and the ornament 18 and outer ring
A large number of wire rods 19 are installed between 10 and. The electric motor support guard body 11 corresponds to a rear guard body, and the mounting portion 13 is formed of a sheet metal plate body as shown in FIG. A large number of wire rods 20 are installed between the mounting portion 13 and the outer ring 9.

Since the electric motor 14 is fixed to the mounting portion 13 and supported by the support ring 8 via the guard body 11, there are wire rods 19 and 20 having small blow resistance on the suction side and the blow side of the blower blades 16, The blowing efficiency is improved compared to a fan such as a fan having a support on the suction side.

The electric motor 14 is fixed to the inner surface side of the mounting portion 13, and the outer surfaces of the electric motor 14 and the mounting portion 13 are covered with front and rear cover bodies 21, 22. A ventilation hole 23 is formed on the lower surface side of the front cover body 21. A handle recess 24 is formed in the upper portion of the rear cover body 22. The handle recess 24 is inserted so as to be fitted substantially into the insertion hole 25 formed in the mounting portion 13, and is positioned so as to cover the upper portion of the electric motor 14. Handle recess
Vent holes 26 are formed on the side of the motor 14 of 24. Electric motor 14
During operation of the motor, air is blown from the ventilation holes 26 to the electric motor 14 by the blower blades 16.
And flows toward the blower blades 16 from the ventilation holes 26.
When the electric motor 14 is stopped, the heat causes the air flowing in from the vent hole 23 to rise around the electric motor 14 and be discharged from the vent hole 26 via the handle recess 24. The grip recess 24 is fitted in the insertion hole 25 of the mounting portion 13 to improve the strength. A switch 27 for stopping and controlling the swinging electric motor 14 is fixed to the lower portion of the mounting portion 13. The rear cover body 22 is formed with a through hole 28 through which the operating portion of the switch 27 projects, and elastic locking pieces to the mounting portion 13 are provided on both sides thereof.
Forming 29. A rib 30 is formed around the rear cover body 22 for contacting with the periphery of the mounting portion 13 for positioning. The rear cover body 22 is positioned and temporarily fixed by the rib 30 and the elastic locking piece 29, and is securely fixed by the screw 31.

The electric cord 32 connected to the electric motor 14 and the switch 27 is wired along the wire rod 20 extending toward the pivot support connecting portion 7 below the mounting portion 13, and is housed in the guide body 33 elastically engaged with the wire rod 20. To be done. The upper portion of the guide body 33 is engaged with the rear cover body 22,
The lower portion is elastically engaged with the pivotal support portion 7.

Next, with reference to FIG. 5 to FIG. 8, the depression / elevation angle adjusting structure of the fan main body 6 will be described.

A pivot 40 is vertically provided at the center of the rotary support 4, and the pivot 40 is formed of a metal cylinder. The pivot 40 is integrated by inserting when the rotary support 4 is molded with synthetic resin. The rotation support base 4 is a shaft support hole formed in the center of the base 3.
By inserting 40, it is rotatably supported by the base 3.
The shaft support hole portion 41 is formed by an insertion hole 42 formed in the base 3 and a bearing body 44 having a collar portion 43 inserted into the insertion hole 42.
For positioning the bearing body 44 with respect to the insertion hole 42, the collar portion 43 is inserted into the insertion hole.
It is placed around 42, and the detent is the collar 43
This is done by fitting a rib 45 formed on the lower surface into a recess 46 around the insertion hole 42. The rotation support base 4 is positioned by placing the lower end of the boss portion when the pivot shaft 40 is insert-molded on the flange portion 43 of the bearing body 44. A pair of recesses 48, 49 for pivotally supporting the pivot support connecting portion 7 of the support ring 8 are formed on the left and right sides of the rotary support base 4 centered on a communication hole 47 formed in the center of the rotary support base 4 to the pivot 40. Is forming.

The pivotal connecting portion 7 formed in the lower portion of the support ring 8 is formed by a pair of left and right hanging pieces 71 and 72, and the front and rear edges of the hanging pieces 71 and 72 are connected by the hanging walls 73 and 74, and the lower surface opening is formed. It is shaped like a box. The hanging pieces 71 and 72 have a shaft support hole 76 through which the shaft body 75 is inserted. The shaft body 75 is formed by a bolt having a threaded portion at its tip. A U-shaped depression / elevation angle adjusting plate 77 is fixed to a screw 78 on the support ring 8 between the hanging pieces 71, 72, and the hanging protruding pieces 79, 80 of the adjusting plate 77 are spaced from the hanging pieces 71, 72 at a constant interval. Located with. A shaft support hole 8 through which the shaft 75 is inserted in the hanging protrusions 79, 80.
It forms 1,82. Hanging piece 71, hanging protrusion 79 and hanging piece
Between the 72 and the drooping protrusion 80, supporting portions 85 and 86 in which shaft supporting holes 83 and 84 of the shaft body 75 are formed are held and pivotally supported. The supporting portions 85 and 86 may be formed integrally with the base 3, but they are formed as separate members in this structure. Drooping pieces 71, 72, supporting parts 85, 86 and hanging projecting pieces 79, 80
The shaft body 75 penetrating through and is prevented from coming off. In this structure, the nut 87 is screwed into the protruding end of the shaft 75, and the end of the shaft 75 has screw holes 88 and protrusions 89 at the lower ends of the supporting portions 85 and 86 that also project from the nut 87. To be done. Recessed part 4 of rotation support base 4
A groove portion 50 for guiding the end portion of the shaft body 75 is formed inside the communication holes 47 of 8,8. Supports 85,86 are provided at the bottom of the recesses 48,49
Of the through hole 51 into which the projection 89 of the
An insertion hole 53 through which 52 is inserted is formed. Support 85,86
Is fixed to the rotary support base 4, the support ring 8 is pivotally supported by the shaft body 75 in the depression / elevation angle adjustment direction.

A torsion spring 90 is housed in the support portion 85, one end of the torsion spring 90 is locked to the support portion 85, and the other end is locked to the hanging protrusion 79 of the adjusting plate 77. The torsion spring 90 causes the torsional spring 90 to balance the force for further rotating in the adjustment direction due to the own weight of the fan main body 6 in the elevation angle adjustment of the support ring 8
Has been granted to.

A shaft support hole 82 is formed as a burring hole in the hanging protrusion 80 of the adjusting plate 77, and a braking plate 91 that slides in pressure contact with the surface of the hanging protrusion 80 on the support portion 86 side is caulked in the burring hole. , Pivotally supported. The locking protrusion 92 formed on the braking plate 91 is engaged with the support portion 86. Since the braking plate 91 is engaged with the support portion 86, the fan main body 6 is held by the frictional force at the adjusted position when adjusting the elevation angle of the support ring 8.

The elevation angle adjusting body in this structure is a torsion spring 90 and a braking plate 91.
However, it may be formed by a ball stopper or the like.

By forming a pair of pivot connection parts 7 with hanging pieces 71, 72,
The width of the part that pivotally supports the elevation angle can be expanded, the rotation is stable without lateral shake, and the force applied to the pivot can be dispersed. Further, by forming the depression / elevation angle adjusting plate 77 in a U shape, the hanging pieces 71, 72 can be reinforced and the lower portion of the support ring 8 can be reinforced. Since the supporting portions 85 and 86 can be assembled in advance in the pivot support connecting portion 7 as separate members, the depression / elevation angle adjusting body can be easily assembled.

Since the front and rear edges of the adjusting plate 77 are in contact with the inner surfaces of the hanging walls 73 and 74, they are pressed against the front and rear upper edges of the recesses 48 and 49 when the elevation angle is maximized as shown in FIG. At this time, the sagging walls 73 and 74 are prevented from being bent, and the hanging walls 73 and 74 can be prevented from being whitened or damaged due to long-term use or excessive pressure contact.

Next, a structure for swinging the fan main body 6 left and right will be described with reference to FIGS. 1 to 4.

The lower surface of the base 3 is open and is closed by a back plate 55 having rubber feet. A switch body 56 for controlling the rotation of the electric motor 14 is mounted in the rear part of the base 3. The switch body 56 uses a rotary switch, and is also equipped with a timer mechanism for performing time control. Since the switch body 56 is mounted on the inclined inner surface of the base 3, the switch body 56 is fixed to the support plate 106 that is bent and formed by the screw 105, and the support plate 106 is fixed by the screw 107 to the boss 108 of the base 3. It is fixed to. Since the support plate 106 is bent, when the force pressing the switch body 56 acts, the base 3
Since the support plate 106 bends so as to be pushed in, the lower portion of the switch body 56 is supported by the support portion 109 formed on the back plate 55. The supporting portion 109 projects downward, and its projecting amount is formed to be lower than that of the rubber foot formed on the back plate 55, and it is located at an intermediate portion between the rubber feet and acts to prevent the base 3 from falling. The electric cord 32 is inserted into the pivot 40 through the insertion hole 47 and drawn into the base 3, and the swinging electric motor 2 and the switch body 56 are inserted.
After being connected to the base 3, the base 3 is pulled out from the lower part. The drawn electrical cord is connected to a commercial power source.

A mounting plate 59 is fixed to a boss 57 vertically provided in the base 3 with a screw 58. The mounting plate 59 is fixed to the inner surface of the upper portion of the base 3 without rattling so as to form a space for accommodating the swing transmission mechanism. The swinging electric motor 2 is fixed to the lower surface of one side of the mounting plate 59 with a screw so that the output shaft 60 projects on the upper surface. Mounting plate 59
A bearing hole 61 for supporting the lower portion of the pivot 40 is formed on the other side.

A cam body 62 is attached to the output shaft 60 of the swinging electric motor 2, and a shaft 63 is formed on the upper surface of the cam body 62 which is an extension of the output shaft 60.
Is rotatably supported by a bearing portion 64 formed on the inner surface of the base 3. One end of a swing link 65 is fitted and supported on the lower circular portion 66 of the cam body 62. A collar is formed on the circular portion 66, and the swing link 65 is sandwiched by the collar and the mounting plate 59 to be rotatably supported. The center of the circular portion 66 is formed so as to be offset from the center of rotation of the output shaft 60, so that the circular portion 66 rotates eccentrically.

In the bearing hole 61 of the mounting plate 59, a cylindrical shaft 69 of a rotating body 68 having a projection 67 for pivotally supporting the other end of the swing link 65 formed on the outer peripheral portion is pivotally supported. A clutch body 96 having an insertion hole 95 for the pivot 40 is fitted on the rotary body 68. As shown in FIG. 1, the pivot 40 is inserted into the through hole 95 of the clutch body 96 and the tubular shaft 69 of the rotary body 68, and projects together with the tubular shaft 69 on the lower surface of the mounting plate 59.

The tip of the pin body 97 inserted from the side of the clutch body 96 is inserted into the engagement hole 98 of the pivot 40, and the clutch body 96 and the pivot 40 rotate together. The rotating body 68 is formed with a recess 101 for accommodating the engagement / disengagement body 100 biased outward by a spring 99, and the clutch body 96 is formed with a plurality of engagement portions 102 for engagement / disengagement of the engagement / disengagement 100. . When the engagement / disengagement body 100 engages with the engaging portion 102 of the clutch body 96, the rotating body 68 and the clutch body 96 rotate integrally,
It will rotate together with the pivot 40. Pin body 97 is base 3
Since it is located at the back of the rotor, it is difficult to screw it in with a jig.
The retaining portion 103 is formed on the 68.

Since the cam body 62 that rotates the swinging electric motor 2 rotates and the rotation of the pivotal support portion of the swinging link 65 moves toward and away from the rotating body 68, it rotates via the swinging link 65. The rotating body 68 is reciprocally rotated by a pushing force and a pulling force on the outer peripheral portion of the body 68. When the rotary body 68 reciprocally rotates, the pivot 40 is reciprocally rotated through the clutch body 96, and the reciprocating rotation of the rotation support base 4 causes the fan main body 6 to rotate.
Is shaken to the left and right. By forcibly applying a force to the fan main body 6 to swing to the left and right, the engagement position of the engaging and disengaging body 100 with the engaging portion 102 can be changed, and the center of the left and right swing can be changed.

The output shaft 60 and the pivot shaft 40 of the swinging electric motor 2 have a single mounting plate 59.
At that time, the distance between the shaft 40 is stabilized, and the shaft 40 is pivotally supported by the shaft support hole 41 and the lower part, so that the torsion of the shaft 40 is prevented,
Have a stable swing. A brake spring 104 is fitted on the outer periphery of the cylindrical shaft 69 of the rotating body 68 that hangs from the mounting plate 59.

In this structure, the rotating body 68 is pivotally supported on the mounting plate 59 by the cylinder shaft 69, but the rotating body 68 is pivotally supported on the pivot shaft 40 and the pivot shaft 40 is directly mounted on the mounting plate 59.
The bearing hole 61 may be pivotally supported. If it is not necessary to change the center of swing, the clutch body 96 is not required and the rotating body
It suffices to integrate the 68 and the pivot 40 with a pin body.

(G) Effect of the Invention As described above, according to the present invention, the dimensional accuracy of the output shaft and the pivot of the swing motor is improved by mounting the swing motor on the mounting plate that pivotally supports the pivot. In addition, by pivotally supporting the cam body on the base, it is possible to prevent the cam body from moving due to the reaction force caused by the swing motion of the device. Also, by pivotally supporting the pivot with the pivot hole of the base and the mounting plate, rotation runout of the pivot can be prevented, and the synergistic effect of these allows smooth operation of the head transmission mechanism. Therefore, there is an effect that the swinging motion can be made smooth.

[Brief description of drawings]

FIG. 1 shows the present invention, FIG. 1 is a side sectional view of a base portion, and FIG.
1 is a plan view taken along line II-II of FIG. 1, FIG. 3 is an exploded sectional view of a base portion, FIG. 4 is an exploded perspective view of the same, and FIG. 5 is a sectional front view of a depression / elevation angle adjusting device portion. FIG. 6 is the same exploded sectional view, FIG. 7 is the same exploded perspective view, FIG. 8 is the same sectional side view, FIG. 9 is a front view of the fan, FIG. 10 is the same side view, and FIG. 11 is an electric motor part. Fig. 12 is a side sectional view of Fig. 12, Fig. 12 is a cross-sectional plan view of the swing stop control switch portion, Fig. 13 is a front view of the central portion of the motor support guard body, and Fig. 14 is a front view of the rear cover body. 1 ... Fan, 2 ... Swing motor, 3 ... Base, 4 ...
… Rotary support, 5 …… Stand, 6 …… Fan mainly, 7
...... Pivot connection part, 8 ...... Support ring, 9,10 ...... Outer ring, 11
...... Electric motor support guard body, 12 ...... Guard body, 13 ...... Mounting part, 14 ...... Electric motor, 16 ...... Blower blade, 40 ...... Axis, 41 ...
… Shaft support hole, 59… Mounting plate, 60… Output shaft, 61… Bearing hole, 62… Cam body, 63… Shaft, 64… Bearing part, 65… Swing link, 68… … Rotating body, 75 …… Shaft, 77 …… Depression angle adjusting plate, 85,86 …… Supporting part

Claims (1)

[Claims] 1. A pivot for supporting a main body of a device so that it can be swung left and right, a base having a shaft supporting hole for axially supporting the pivot, and a pivot fixed to the base and protruding into the base. A mounting plate for forming a bearing hole for axially supporting the swinging motor, and a cam body mounted on the output shaft of the swinging motor and axially supported by a bearing portion formed on the base; A swinging device for a device, comprising a body and a device main body side, and a swing link for swinging the device main body by rotation of a swinging electric motor.