JPH01224598A - Turn up angle adjusting device for equipment - Google Patents

Abstract

PURPOSE:To scatter a force applied by an appliance main body and improve its durability by supporting the appliance main body at a supporting part by means of a pair of shaft support connecting parts, and using a turn up angle adjusting plate for a reinforcement plate simultaneously. CONSTITUTION:A stand 5 for a fan is formed of a base 3 and a rotation support table 4, and at the rotation support table 4 is supported a supporting circular body 8 where a pivotally supporting connection part 7 for a fan main body is formed to be freely adjustable for a turn up angle. By fixing supporting parts 85, 86 at the rotation support table 4, the supporting circular body 8 is supported by a shaft body 75 to be turned in the turn up angle adjusting direction. By forming the pivotally supporting connection part 7 of a pair of suspended members 71, 72, the range of the part for pivotally supporting a turn up angle can be enlarged, and because a turn up angle adjusting 77 is of a U-form, it also acts as reinforcement for the suspended members 71, 72 and reinforcement for the upper part of the supporting circular body 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an elevation angle adjustment device for equipment, which is used for electric fans, electric heaters, lighting devices, etc.

(b) Prior art As a technology prior to the present invention, Japanese Patent Application Laid-Open No. 182498/1983
There is an elevation angle adjustment device for an electric fan described in the above publication. Elevation angle, tllt device is a U-shaped elevation angle of the protrusion of the banner installed at the bottom of the main body of the M wind! It is supported by a support for layer alignment. With this structure, it was necessary to form the protrusion thickly so as to have sufficient strength since forces such as vibration of the main body act concentratedly on the protrusion, and a member was also required to cover the support body.

(c) Problems to be Solved by the Invention The technical object of the present invention is to provide an elevation angle adjustment device that stably supports the main component of the elevation angle adjustment device and improves durability. .

(d) Means for Solving the Problems The present invention provides a pair of pivot joints protruding from the lower part of the main body of the device with a gap between them, and a U-shaped vertically fixed protrusion between the pivot joints. An angle adjustment plate, a stand that forms a support part that is held between the pivot connection part and the adjustment plate, and a pivot connection part! I
The problem is solved by a means formed from a shaft body that pivotally connects the adjustment plate and the support part, and an elevation angle adjustment body formed between the adjustment plate and the support part.

The U-shaped elevation angle adjustment plate is formed of metal such as die-casting or sheet metal in order to sufficiently reinforce the pivot joint.

The support portion may be formed by integrally protruding from the member constituting the stand, or may be formed separately and fixed with screws or the like.

The shaft body may be a bolt/nut or a simple bottle body, and in the case of a pin body, a separate stopper is required.

The elevation angle adjustment body may be a spring body that applies an opposite force to the equipment body that balances the rotational force due to the weight of the equipment body, or a friction plate that securely holds the equipment at the adjusted position. It may be the body, a ball stop, etc.

The main component of the device forming the pivot connection may be a blower having an electric motor and blower blades, an electric heating device having an electric heater and a reflector, or a light emitting body and a reflector. It may be a lighting device that has.

(E) Function The present invention has a pair of pivot joints that distribute and receive the weight of the main component of the device, and that the pivot P section is reinforced with a U-shaped elevation angle adjustment plate, thereby increasing the support strength. By arranging each component such as the elevation angle y4 adjustment inside the pivot joint, the pivot joint also functions as a cover.

Example) The structure of the present invention will be explained in detail based on a structure in which the elevation angle adjusting device of the present invention is used in a fan 1 shown in the drawings.

FIG. 9 is a front view of the electric fan 1, and FIG. 10 is a right side view of the electric fan 1. The electric fan 1 has a base 3 in which an electric motor 2 for oscillation is installed, and a rotary support 4 that is pivoted to the base 3 so as to be rotated back and forth to the left and right by an electric motor 2 for oscillation. A fan stand 5 is formed by the rotating support base 4. i,
The am stand 5 has a hemispherical external appearance, and the outer surface (upper surface) of the base 3 and the outer surface (upper surface) of the rotary support base 4 form a continuous surface.

A fan main body 6 can be supported on the rotary support base 4 so as to be able to freely adjust the elevation angle. 'Js A support ring body 8 in which a pivot connection part 7 is formed on the main body 6 of the wind turbine, and an electric motor support guard body 11 and a guard body 12 that are attached by fitting outer rings 9 and 10 to the support ring body 8.
, an electric motor 14 fixed to a mounting part 13 at the center of the electric motor support girt body 11 , and a blower blade 16 attached to a rotating shaft 15 of the electric motor 14 .

The support ring body 8 is made of synthetic resin and has a guard body 11 on its inner surface.
．． A plurality of protrusions are formed in which the twelve outer rings 9 and 10 are fitted and held. An elastic piece 17 is formed at the lower part 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, and has a fang 18 in the center, and a large number of wire rods 19 are installed between the ornament 18 and the outer ring 10. ing. The motor support guard body 11 corresponds to a rear guard body, and the mounting portion 13 is formed of a sheet metal plate as shown in FIG. A large number of wire rods 20 are installed between the attachment portion 13 and the outer ring 9.

The electric motor 14 is fixed to the mounting part 13 and supported by the support ring body 8 via the guard body 11, so that there are wire rods 19 and 20 with low blowing resistance on the suction side and the Suita side of the blowing blade 16, which is different from the conventional one. Air blowing efficiency is improved compared to an electric fan that has a support on the suction side.

The electric motor 14 is fixed to the inner surface of the mounting part 13.
The outer surface of the mounting portion 13 is covered with integrated front and rear covers 21 and 22. A ventilation hole 23 is formed on the lower surface side of the integrated front cover 21. A handle recess 24 is formed in the upper part of the rear cover unit 22. The handle opening 24 is formed in the insertion hole 25 formed in the mounting part 13.
A ventilation hole 26 is formed on the electric Al 14 side of the handle opening 24, which is inserted so as to substantially fit into the electric motor 14 and is located so as to cover the upper part of the electric motor 14. During operation of the electric motor [14], air flows through the ventilation hole 26 around the electric motor a114, and from the ventilation hole 26 toward the ventilation blade 16.
When 11ta@1a stops, the heat causes the air to flow out of the vent hole 23, and the large amount of air rises around the electric motor 14 and is completely discharged from the vent hole 26 through the handle recess 24. Handle recess 2
4 is fitted into the insertion hole 25 of the attachment portion 13 to improve its strength. A switch 27 for stopping and controlling the oscillating motor 14 is fixed to the lower part of the mounting portion 13. Rear cover integrated 22
A through hole 28 from which the operating portion of the switch 27 projects is formed in the through hole 28, and elastic locking pieces 29 for connecting to the mounting portion 13 are formed on both sides of the hole 28. A rib 30 is formed around the rear cover unit 22 to abut around the mounting portion 13 for positioning. The rear cover unit 22 is positioned and temporarily fixed by ribs 30 and elastic locking pieces 29, and securely fixed by screws 31.

Electric cord 32 connected to electric motor 14 and switch 27
is wired along a wire rod 20 that extends from the mounting portion 13 toward the pivot connection portion 7 below, and is housed in a guide body 33 that elastically engages with the wire rod 20. The upper part of the guide body 33 is engaged with the rear cover unit 22, and the lower part is elastically engaged with the pivot connection part 7.

Next, the elevation angle adjustment structure of the fan main body 6 will be explained based on FIGS. 5 to 8.

A pivot shaft 40 is vertically disposed at the center of the rotary support base 4, and the pivot shaft 40 is formed of a metal cylinder. The pivot 40 is integrated by inserting it when molding the rotation support 4 from synthetic resin.6 The rotation support 4 is integrated by inserting the pivot 40 into the shaft support hole 41 formed in the center of the base 3. Thus, it is rotatably supported by the base 3. The shaft support hole 41 is formed by an insertion hole 42 formed in the base 3 and a bearing body 44 having a flange 43 that is inserted into the insertion hole 42 . The bearing body 44 is positioned with respect to the insertion hole 42 by placing the collar 43 around the insertion hole 42, and rotation is prevented by fitting a rib 45 formed on the lower surface of the collar 43 into a recess 46 around the insertion hole 42. The 0-rotation support base 4 is made by insert-molding the pivot shaft 40, and the lower end of the boss part is placed on the flange 43 of the bearing body 44, so that the 0-rotation support base 4 is positioned at the center of the 0-rotation support base 4. A pair of recesses 48 and 49 for pivotally supporting the pivot connecting portion 7 of the support ring 8 are formed on the left and right sides of the rotary support base 4 around the formed communication hole 47 to the pivot shaft 40 .

The pivot connection part 7 formed at the lower part of the support ring 8 is formed by a pair of left and right hanging pieces 71, 72, and the front and rear edges of the hanging pieces 71 and 72 are connected by hanging walls 73, 74, and a lower opening is formed. It is shaped like a box. A shaft support hole 76 is formed in the hanging pieces 71 and 72, into which the shaft body 75 is inserted. The shaft body 75 is formed of a bolt having a threaded portion at its tip. Hanging piece 71.
A U-shaped vertical elevation angle mv plate 77 is fixed to a screw 78 on the support ring 8 between 72, and a hanging projecting piece 79 from which the adjusting plate 77 hangs
．． 80 is located at a constant distance from the hanging pieces 71 and 72. The hanging projection piece 79.80 has a shaft support hole 8 through which the shaft body 75 is inserted.
1.82. Between the hanging piece 71 and the hanging protrusion piece 79 and between the hanging piece 72 and the hanging protrusion piece 80, a support part 85.86 in which a shaft support hole 83.84 of the shaft body 75 is formed is clamped and pivoted. The support portions 85 and 86 may be formed integrally with the base 3, but in this structure, they are formed as separate members. Hanging piece 71.
The shaft body 75 passing through the support portions 85 and 86 and the hanging protrusions 79 and 80 is prevented from being removed.

In this structure, a nut 87 is screwed into the protruding end of the shaft 75, and a threaded portion 88 and a protrusion 89 are formed at the lower end of a support portion 85.86 that also protrudes from the nut 87 at the end of the shaft 75. be done. A groove 50 is formed inside the communication hole 47 of the recess 48, 49 of the rotary support base 4, in which the end of the shaft 75 is guided. A through hole 51 into which the protrusion 89 of the support portion 85.86 fits, and an insertion hole 53 into which the screw 52 screwed into the screw hole 88 is inserted are formed at the bottom of the recess 48,49. Support part 8
5.86 is fixed to the rotary support base 4, the support ring 8 is rotatably supported by the shaft body 75 in the direction of adjusting the elevation angle.

A torsion spring 90 is housed in the support portion 85 .
0 is locked to the support part 85, and the other end is II'! Board 77
The plate distortion 7 can be completely locked to the protruding piece 79. Due to the own weight of the fan main body 6 when adjusting the elevation angle of the support ring 8! 1llI! The torsion spring 90 applies a force to the support ring 8 that balances the force that tends to further rotate in the direction.

A shaft support hole 82 is formed as a burring hole in the hanging protrusion 80 of the adjustment plate 77, and a braking plate 91 that slides in pressure contact with the surface of the hanging protrusion 80 on the side of the support part 86 is caulked through the burring hole. , is centrally supported. A locking protrusion 92 formed on the brake plate 91 engages with the support portion 86 . Since the brake plate 91 is engaged with the support portion 86, the main body 6 of the wind turbine 6 is held at the adjusted position by frictional force at the elevation angle [t] of the support ring 8.

Although the elevation angle iiw body in this structure is formed by the torsion spring 90 and the brake plate 91, it may be formed by a pole stopper or the like.

By forming the pivot connecting part 7 with a pair of hanging pieces 71 and 72, the width of the part that pivots the elevation angle can be expanded,
The rotation is stable without sideways movement, and the force applied to the pivot can be dispersed. Furthermore, by making the elevation angle adjustment plate 77 U-shaped, the hanging pieces 71, 72 and the lower part of the support ring 8 can be reinforced. Since the support parts 85 and 86 can be assembled into the pivot connection part 7 in advance as separate members, the elevation angle adjustment body can be easily assembled.

Since the front and rear edges of Key 1Fi77 are in contact with the inner surfaces of the hanging walls 73 and 74, when the elevation angle is maximized as shown in FIG. Deflection of the hanging walls 73, 74 at this time is prevented, and whitening and damage of the hanging walls 73, 74 due to long-term use and unnecessarily pressure welding can be prevented.

Next, a structure for swinging the electric fan main body 6 from side to side will be explained based on FIGS. 1 to 4.

The bottom surface of the base 3 is open, and a back plate 55 has rubber feet formed thereon.
Close at. A switch body 56 for controlling the rotation of the electric motor 140 is mounted inside the rear part of the base 3. The switch body 56 uses a rotary switch, and also includes a timer mechanism for controlling time. Since the switch body 56 is mounted on the inclined inner surface of the base 3, the switch body 56 is fixed to a bent support plate 106 with screws 105, and the support plate 106 is fixed to the boss 108 of the base 3 with screws 107. It is fixed at Since the support plate 106 is bent, the support plate 106 bends so as to be pushed into the base 3 when a force to press the switch body 56 is applied, so the lower part of the switch body 56 is formed on the back plate 55. It is supported by a support part 109. The support portion 109 protrudes downward, and its protrusion amount is equal to the back plate 55.
The rubber feet are formed lower than the rubber feet formed in FIG.

The electric cord 32 is inserted through the insertion hole 47 into the pivot 1FIII 40, drawn into the base 3, connected to the oscillating motor 2 and the switch body 56, and then pulled out from the bottom of the base 3. The pulled out electrical cord is connected to a commercial tR.

Attach the f dimension plate 5 to the boss 57 vertically installed in the base 3 with screws 58.
Fix 9. The mounting plate 59 is fixed without wobbling so as to form a space between it and the inner surface of the upper part of the base 3 to accommodate the vibration transmission mechanism. The oscillating 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 from the upper surface. A bearing hole 61 for pivotally supporting the lower part of the pivot 40 is formed on the other side of the mounting plate 59.

A cam body 62 is attached to the output shaft 60 of the oscillating electric motor 2,
A shaft 63 is formed on the upper surface of the cam body 62 that is an extension of the output shaft 60, and the shaft 63 is pivotally supported by a bearing portion 64 formed on the inner surface of the base 3. One end of the oscillating link 65 is fitted into the lower circular portion 66 of the cam body 62, and a flange is formed in the first circular portion 66 which pivotally supports the oscillating link 65. The center of the rotatably supported circular portion 66 is the output shaft 60.
By forming the circular portion 66 offset from the center of rotation, the circular portion 66 rotates eccentrically.

The bearing hole 61 of the mounting plate 59 has a cylindrical shaft 69 of a rotating body 68, which has a protrusion 67 formed on its outer periphery to pivotally support the other end of the oscillating link 65. A clutch body 96 having 40 insertion holes 95 is fitted therein. axis 40
As shown in FIG. 1, it is inserted through the insertion hole 95 of the clutch body 96 and the cylindrical shaft 69 of the rotating body 68, and protrudes from the lower surface of the mounting plate 59 together with the cylindrical shaft 69.

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 shaft 40, and the pin body 97 is inserted from the side of the clutch body 96.
and the pivot 40 rotate together. The rotating body 68 is formed with a recess 101 for housing the engaging/disengaging body 100 that is urged outward by a spring 99, and the clutch body 96 is formed with a plurality of engaging parts 102 into which the engaging/disengaging body 100 is engaged/disengaged. . clutch body 9
By engaging the engaging and disengaging body 100 with the engaging portion 102 of 6, the rotating body 6 and the clutch body 96 rotate together, and the pivot 40
It will rotate as one. Since the pin body 97 is located at the back of the base 3, it is difficult to screw it in with a jig.
A removal stop portion 103 is formed at 8.

When the oscillating electric motor 2 rotates, the cam body 62 rotates, and the rotation of the pivot portion of the oscillating link 65 is a movement toward and away from the rotating body 68, so that the cam body 62 rotates via the oscillating link 65. body 68
When the rotating body 68 rotates back and forth, the clutch body 96
The pivot shaft 40 is reciprocally rotated through the rotary support 4, and the fan main body 6 is oscillated left and right by the reciprocating rotation of the rotary support base 4. By applying a force to force the fan main body 6 to swing left and right, the engagement position of the engaging and detaching body 100 with the engagement portion 102 can be changed, and the center of left and right swing can be changed.

The distance between the output shaft 60 of the electric swing motor 82 and the pivot 1 40 is stabilized by a single mounting plate 59, and the pivot 40 is supported by the pivot hole 41 and the lower part. Twisting of the shaft 40 is prevented, allowing stable swinging. A brake spring 104 is fitted onto the outer periphery of the cylindrical shaft 69 of the rotating body 68 that hangs down from the mounting plate S9.

In this structure, the rotating body 68 is pivotally supported on the mounting plate 59 by a cylindrical shaft 69, but the rotating body 68 is pivotally supported on the pivot 40, and the pivot 40 is directly supported in the bearing hole 61 of the mounting plate 59. Good too.

Further, if the center of oscillation does not need to be changed, the clutch body 96 is not necessary, and the rotating body 68 and the pivot shaft 40 may be integrated with a pin body.

The implementation structure of the present invention is not limited to the above-mentioned structure, and a wide support part is provided on the stand, and the support part is pivoted by a shaft body so as to be held by a pivot connection part reinforced with an adjustment plate. You can force it.

(G) Effects of the Invention The present invention can disperse the force applied from the device main body by supporting the device main body on the support part by a pair of pivot connecting parts.
By pivoting at the wide part, it is possible to prevent lateral wobbling, and by using the elevation angle V4 adjustment plate as a reinforcing plate, durability can be improved.

[Brief explanation of the drawing]

The figures show the present invention; FIG. 1 is a side sectional view of the base portion;
The figure is a plan view taken along ■-■ in Figure 1, Figure 3 is an exploded sectional view of the base, Figure 4 is an exploded perspective view of the same, Figure 5 is a sectional front view of the elevation angle adjustment device, Fig. 6 is an exploded sectional view, Fig. 7 is an exploded perspective view, Fig. 8 is a sectional side view, and Fig. 9 is an exploded sectional view.
The figure is M$J, the front view of the machine, Figure 10 is the same side view, Figure 11
Figure 1 is a side cross-sectional view of the motor part, Figure 12 is a cross-sectional plan view of the head vibration stop control switch part, Figure 13 is a front view of the central part of the motor support guard, and Figure 14 is a front view of the integrated rear cover. It is. 1... Electric fan, 2... Oscillating electric motor, 3... Base, 4... Rotating support base, 5... Stand, 6... Fan main body, 7... Pivotal connection Part, 8... Support ring body, 9
．． 10... Outer ring, 11... Motor support guard body, 1
DESCRIPTION OF SYMBOLS 2... Guard body, 13... Mounting part, 14... Electric motor, 16... Air blower, 40... Pivot, 41...
Shaft support hole, 59...Mounting plate, 60...Output shaft, 61
... Bearing hole, 62 ... Cam body, 63 ... Shaft, 64
...Bearing part, 65... Oscillating link, 6B... Rotating body, 75... Shaft body, 77... Elevation angle adjustment plate, 85
．． 86...Support part

Claims (1)

[Claims] 1. A pair of pivot joints protruding from the bottom of the main body of the device with a gap between them, a U-shaped elevation angle adjustment plate that protrudes between the pivot joints, and the pivot joint and the adjustment plate. a stand that forms a support part that is held between the two; a shaft body that pivotally connects the pivot connection part, the adjustment plate, and the support part; and an elevation angle adjustment body that is formed between the adjustment plate and the support part. A device for adjusting the elevation angle of equipment.