JPH1087271A - Automatic gravitational center hoist device and level detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic gravitational center hoist device capable of facilitating a horizontal/vertical hoist and a level detector used in this automatic gravitational center hoist device. SOLUTION: A base 11 providing a hoist part 12 hooking a belt hoisting a body of equipment to firmly hold the hoist part 12 is arranged, a movable suspension 16 firmly mounting a fixed suspension 14 having an engaging part 15 formed with a linear guide mechanism on the base 11 holding the engaging part 15 of the fixed suspension 14 having the linear guide mechanism and having a movable used tap hole 18 is arranged. Further, in the tap hole 18, a bolt 20 is inserted, in its one end part shaft, a slide coupling 32 capable of engaging with an output shaft of a reduction gear 33 is provided. In accordance with a condition detected by a level detector, by a motor 40 of the reduction gear 33, a prescribed turn is given to the bolt 20 through the slide coupling 32 from the reduction gear 33, the movable suspension 16 is made movable so as to conform to the center of gravity of the body of equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic center-of-gravity suspension apparatus and a level detecting apparatus, and more particularly to a suspension of precision equipment, which can facilitate horizontal and vertical suspension in a specific direction. The present invention relates to a suspension device and a level detection device suitably used for the suspension device.

[0002]

2. Description of the Related Art FIG. 10 is a perspective view of a conventional sling. The housing 1 with built-in precision equipment is rotated under belts 2 and 3 to be hung below the bottom thereof, and the respective loops of the belts 2 and 3 are hooked on hooks 4 hung by a crane (not shown). The housing 1 is lifted by a crane. At this time, the belts 2 and 3 appear to be stretched evenly in appearance, but are often uneven. If the tension of the belts 2 and 3 is not uniform, a twisting force acts on the spaces 5 and 6 between the belts 2 and 3. Further, since the belts 2 and 3 move toward the hooks 4 from the corners of the ceiling, a force is applied to the ceiling of the housing 1 in the directions of arrows 7, 8, 9 and 10 by suspending the housing 1, and this force is applied to the ceiling and the hooks 4. The shorter the distance, the larger the distance. Eventually, the squeezing force acts on the ceiling and acts on the above-described torsion force acting on the bottom, thereby deforming the housing 1. This deformation of the housing 1 always occurs even if the required position is measured after the housing is installed by slinging and mounting the housing. Occasionally, cooperation between robots forming an internal device becomes impossible. In such a case, it is necessary to readjust each device so that it can be used.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to automatically match the suspension position of a suspension device to the center of gravity of a suspended object,
An object of the present invention is to provide an automatic center of gravity suspension device capable of stably suspending an object to be suspended, and a level detection device suitably used for the device.

[0004]

According to the present invention, when a suspended object is suspended, the suspended position of the suspended device is suspended by a level detecting device which automatically detects the center of gravity of the suspended object. In an automatic center of gravity suspension device that matches the center of gravity of a suspended object, a suspension portion for hanging a suspended object to be suspended for an object to be suspended is provided, a base for firmly holding the suspended portion is provided, and a linear guide having a required length is provided on the base. A fixed suspension having an engaging portion forming a mechanism is firmly attached, the engaging portion of the fixed suspension is held, and a movable suspension having a linear guide mechanism and having a tapped hole provided for movement is provided.
A required form of bolt is passed through the tapped hole, and both ends of the bolt are supported by a bearing mechanism straddling the fixed suspension.
The one end shaft of the bolt is provided with a coupling that can be engaged with the output shaft of the speed reduction mechanism, and the motor of the speed reduction mechanism can perform forward and reverse rotation extraction depending on the state detected by the level detection device. It is possible to apply predetermined power to the bolt through the coupling from the speed reduction mechanism by applying power to the motor, and to move the movable suspension so as to match the center of gravity of the suspended object. An automatic center-of-gravity suspension device is provided.

According to the present invention, more preferably, the suspension position of the suspension device is determined by a level detector which automatically detects the center of gravity of the suspended object when the suspended object is suspended. In the automatic center-of-gravity suspension device that is adjusted to the center of gravity, a hanging portion for hanging a hanging object to be hung for a suspended object is provided, and a base for firmly holding the hanging portion is provided, and a linear guide having a required length is provided on the base. Firmly attaching a fixed suspension having an engagement part forming a mechanism,
A movable suspension having a linear guide mechanism and having a through hole and a tapped hole provided for suspension and movement, respectively, is provided for holding the engaging portion of the fixed suspension. Through, the both ends of the bolt are supported by a bearing mechanism straddling the fixed suspension, a handle structure is formed on one end shaft of the bolt, and the output shaft of the reduction mechanism is formed on the other end shaft of the bolt. With a slide coupling that can be engaged and disengaged, the motor of the deceleration mechanism can perform forward and reverse rotation extraction according to the state detected by the level detection device, and power to the motor is A predetermined rotation is given from the speed reduction mechanism to the bolt via the slide coupling, and the movable suspension can be moved to match the center of gravity of the suspended object. Apparatus is provided.

Further, according to the present invention, in a level detecting device for detecting the center of gravity of a suspended object, a fan-shaped irregular shape or a toy is attached, and a main portion of the fan-shaped portion is provided with a support having an acute-angled point. The fan shape can be supported, the tip of the support portion is rotatably supported on the fan shape, and the fan shape is formed to have an unusual shape or towel to obtain an equilibrium posture, and the level of each of the two sloped edges of the fan shape is detected. The two photo sensors are supported on a support, and are respectively disposed outside the two detection edges as the detection edges. A level detecting device is provided, which is capable of detecting a turning variation of a sensor by blocking and opening an optical path of the photosensor by the detection edge.

According to the present invention, more preferably,
In a level detecting device for detecting the center of gravity of a suspended object, a fan-shaped irregular shape or a toy that is made of an expanded nonmagnetic metal, and a plurality of support portions each having a sharp-pointed tip attached to a main portion of the fan-shaped portion. A sector can be supported, and a hole is formed near the support, and the sector is a fan-shaped support having a V-groove for supporting the tip of the support and placed in the hole. On the V-groove of the sector support, it is made rotatable about the center to form a deformed shape or a toy to obtain an equilibrium posture, and the level of the slope edge formed by connecting the outer peripheral lines of the sector and facing toward both sides is detected. A detection edge, a saddle-shaped photosensor is placed separately so as to be held together with the detection edge, and the light path of the fat sensor can be blocked and opened with respect to the detection edge. Those who sandwich the thickness on the near inside Arranged magnets forming the opposite pole,
A part of the fan shape is placed in a magnetic field formed by the magnet to suppress unnecessary movement of the deformed or tattered, and to the equilibrium posture of the deformed or tattered, the rotation of the support of the photosensor is caused by a change in the dislocation of the support. A level detecting device is provided, which is capable of detecting a turning variation of a photosensor by blocking and opening an optical path of the photosensor by the detection edge.

Although the present invention does not limit the range of use, it is particularly suitable for a suspended object having a high center of gravity. If the suspended object with a high center of gravity loses equilibrium with the center of gravity, it will easily fall over with a forklift, so the use of the automatic center of gravity suspension device of the present invention prevents overturning and stabilizes the suspended object. Deformation can be prevented. Hereinafter, this will be described in detail.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings.

First, the structure will be described.

FIG. 1 is a perspective view showing an automatic center of gravity suspension device A and a level detection device B.

In the automatic center of gravity suspension apparatus A, the channels are arranged in a protruding manner to form a base 11, a rod of a required shape is passed through the center of the base 11, and integrated by welding or the like to form a suspension section 12. At each end of the hanging portion 12, a belt stopper 1 is provided.
A disk forming No. 3 is attached. H on the back of the base 11
It has a linear guide structure made of a shaped steel and having a low sliding resistance, a fixed suspension 14 having an engaging portion 15 is firmly attached, and an engaging portion 17 forming a linear guide structure holding the engaging portion 15 is provided. And a movable suspension 16 provided with a tap hole 18 and a through hole 19. The bolt 20 having the shaft ends 22 and 23 is passed through the tapped hole 18, and the bolt 20 is supported by bearings 24 and 25 fixed across the fixed suspension 14. The shaft ends 22 and 23 are supported. One end of a handle arm 28 is firmly attached to the shaft end 22, and a handle shaft 29 is fixed to the other end of the handle arm 28. The handle 30 is prevented from falling off by the handle shaft 29 and is rotatably held.

A key 31 is fixed to the shaft end 23, a slide coupling 32 of a predetermined shape is arranged, and an output shaft 34 of the speed reducer 33 and a key 35 integrally attached thereto are connected to the slide coupling 32. Through the connection in the direction of arrow 36, the arrow 3
Separation is performed in seven directions. The speed reducer 33 is firmly attached by a bolt group 38. The motor 40 matches the reduction gear flange 39 with the motor flange 41 and is integrally fixed to the reduction gear 33 with a bolt group 42. Although not visible in the drawing, the engagement between the wheel of the speed reducer 33 and the worm of the motor 40 is natural.

Cable 43 for supplying power to motor 40
Are connected to a field coil and an armature in a motor 40 and are fixed by a bushing 44.

A round pin 45 and a square pin 46 with round caps are attached to the side surface of the base 11 with different diameters and side dimensions.

Next, the level detecting device B will be described.

Since the level detecting section incorporated in the level detecting device B has directionality, which will be described later, the outer case 47 of the level detecting device B also needs to have directionality. 48 and outer box 47 are connected by thin wire ropes 49 and 52. That is, the ends of the wire ropes 49 and 52 are squeezed by the sleeves 50, 51 and 53, 54, respectively.
At the end of the sleeve 8, the sleeves 51 and 54 are fixed to the upper corner of the outer box 47 by welding or the like as shown in the figure. Further, at the hooking position of the engagement plate 48, the R notch 55 and the square notch 56 are formed so as to be surely engaged with the round pin 45 and the square pin 46.
Is attached. As described above, since the diameter of the round pin 45 and the width of the side of the square pin 46 are different from each other, it is apparent that even if the direction is changed, the engaging plate 48 is not hooked. When the outer box 47 is placed on the ceiling of the housing 1, the wire ropes 49 and 52 are placed so as not to intersect and in parallel with the base 11.

FIG. 2 is a perspective view for explaining a method of suspending the housing 1 using the automatic center of gravity suspension device A and the level detection device B according to one embodiment of the present invention.

As shown in FIG. 2, the belts 2 and 3 are turned below the bottom of the housing 1, and the loops at the respective ends of the belts 2 and 3 are respectively hooked near the both ends of the hanging portion 12. In this way, the belts 2 and 3 are prevented from being hooked on the corners of the ceiling of the housing 1, so that the force of narrowing the ceiling is prevented from acting. The outer box 47 of the level detection device B
Is placed on the ceiling of the housing 1.

FIG. 3 is a front view of the level detecting device B, FIG. 4 is a plan view, and FIG. 5 is a side sectional view. In the level detecting device B, an irregular shape and a torso 58 are formed on a base 57. The deformed flap 58 is made of an aluminum plate and forms an expanded fan-shaped shape 59, and a required portion is provided with a required square hole 60. An edge 61 having a required width is provided above the square hole 60, and a main portion support 63 made of a hard metal having a sharpened point 62 at a position corresponding to the main portion is provided at a center portion of the edge 61.

As shown in the cross-sectional view of FIG. 5, the edge 61 is formed in a channel shape, and a main part support 63 is provided at the center thereof, so that the center part of the main part is supported at two points. It is stable in the axial direction and acts only in the direction of rotation about the axis.

A deformed or fender support 66 having V-grooves 64 and 65 having an angle sufficiently larger than the acute angle of the point 62 for supporting the point 62 of each main part support 63 is provided with a bolt 67A on the base 57 through a mounting hole. To fix. A stop pin 69 for restricting unnecessary rotation of the deformed or flap 58
And 70 close to the sensing edges 67 and 68,
7 is fixed on the base 7 with bolts 71 and 72 via mounting holes.
Each of the saddle-shaped photo sensors 73 and 74 has a bolt 7
8 and 79 respectively.

Since each of the mounting holes 80 and 81 of the support angles 75 and 76 is a long hole, adjustment is easy even if the mounting holes 80 and 81 are fixed by the bolts 82 and 83, respectively.

A light-emitting portion and a light-receiving portion are provided in the protruding portions of the photosensors 73 and 74 facing each other. The light-receiving portion is a photoelectric device. By blocking light from the light-emitting portion, the electric resistance of the photoelectric device is reduced. In this case, the opening and closing of the optical path are performed by turning the photosensors 73 and 74 with respect to the sector 59 of the irregularly shaped or fenced 58, and the operation is shown in FIGS. Write by reference.

As shown in FIG. 6, the deformed or flap 58 is bilaterally symmetrical with the point 62 as a fulcrum and center, and is always horizontal. The reference is the detection edges 67 and 68.
Assuming that the light-emitting body of the photosensor 73 is 73 ′ and the light-emitting body of the photosensor 74 is 74 ′, the corresponding light-receiving body is in the cut-out convex portion that straddles the irregular shape and the flap 58, and the received light is respectively Luminous bodies 73 'and 7
4 'and the photodiode 73 "for receiving light from the light emitter 73' and the photodiode 74" for receiving light from the light emitter 74 'have the same resistance. Low resistance and in equilibrium. This is to be shown by a detection circuit described later.

As shown in FIG. 7, if the outer box 47 mounted on the ceiling of the housing 1 is inclined rightward with the inclination of the ceiling,
While the deformed or flap 58 is kept horizontal, the base 57 integrated with the outer box 47 and the object fixed thereto are turned around. Accordingly, the light emitter 73 ′ is blocked by the sector 59 inside the detection edge 67, and the corresponding photodiode 73 ″ stops receiving light, so that its electric resistance changes to high resistance. Since the illuminator 74 'is turned in the direction away from the detection edge 68, the illuminator 74', which has been partially blocked, is fully opened, and the photodiode 74 "receiving light has a lower resistance.

FIG. 8 shows a case where the light emitting body 74 'is turned to the left. The light emitting body 74' enters the inside from the detection edge 68 and is shielded from light by the sector 59, so that the electric resistance of the photodiode 74 "is changed to a high resistance. On the other hand, the luminous body 73 ′ is
The light emitting element 73 ′ partially blocked is fully opened, and the light receiving photodiode 73 ″ has a further lower resistance.

Contrary to the above description, the luminous bodies 73 'and 7
Although there is a method of obtaining the balance by blocking the light of 4 ′, in the present embodiment, the above-described detection method is used in consideration of safety.

As shown in the cross-sectional view of FIG. 5, the permanent magnet 84 is formed such that the N pole and the S pole face each other and are close to each other.
After exiting the pole, it passes through the sector 59 and enters the south pole.

As shown in FIG. 6, when a magnetic field 89 formed by the lines of magnetic force of the permanent magnet 84 passes through the sector 59 from the front surface to the back surface of the paper as shown by the cross mark, the deformed shape and the flap 58 move with respect to the magnetic field. If it is not, there is no effect on the sector 59 formed of an aluminum plate, but if either the magnetic field 89 or the sector 59 has a rotational displacement, the magnetic field 8
9 is cut by a sector 59, and a vortex 94 is generated in the sector 59. Although not shown, a magnetic field generated by the vortex 94 acts on the magnetic field 89 and acts to follow the magnetic field 89. this is,
This means that the magnetic field 89 plays a role of a damper that suppresses the movement of the sector 59 forming the irregular shape and the torso 58. This operation is the same as the operation and effect of the permanent magnet for preventing creeping, which is the rotation of the rotating disk when the integrating wattmeter is not loaded. In the case of the present apparatus, movement such as a pendulum with a deformed shape or a swaying pendulum is prevented, the balance is always maintained, and only the inclination of the ceiling of the housing 1 can be detected.

The permanent magnet 84 is held by the magnet support 85,
The magnet support 85 is tightly fastened to the tap hole of the base 57 by the bolt 86, respectively. The bolt 87 made of a magnetic material is a bypass bolt for adjusting the magnetic field for adjusting the effect of the damper on the deformed shape and the flap 58, and the lock after the adjustment is performed by tightening the nut 88.

Terminal group 73 of photo sensors 73 and 74
The connectors to A and 74A are omitted, but the connections are made to form an electrical circuit. The hole group 89 of the base 57 is
For mounting inside. In the legs of the outer box 47, the squares horizontally project and fix the urethane seats 90 having a high frictional force and fix each magnet 10 between the seats 90 with an appropriate attraction force.
Place a 0. Electrical circuit cable 101 is bushing 1
Attach at 02.

FIG. 9 is a circuit diagram showing an embodiment of a control circuit 103 for controlling the image sensor according to signals from the photo sensors 73 and 74 of the level detector B. Various ICs now
Is also commercially available, but is described here as an example. In the control circuit 103, the input terminals 104 and 1
05 is supplied with a DC of a required voltage. When the switch 106 is turned on, the voltage E1 is applied to the anode line 107 and the cathode line 108. The light emitters 73 'and 74' emit light, and when in the equilibrium state shown in FIG. 6, the light of the light emitter is received by the photodiodes 73 "and 74". Therefore, each electric resistance value is a low resistance value, that is, the resistance value of the photodiode 7 is 1 kΩ for the resistor R109.
Since the resistance value of 3 ″ is 0.1 kΩ, most of the shared voltage of the supply voltage E1 is shared by the resistor 109, and the voltage at the connection point 110 between the resistor 109 and the photodiode 73 ″ is close to the potential of the cathode line 108 and low. It is a voltage value. Also, the resistor R
The voltage at the connection point 112 between the resistor R111 and the photodiode 74 "is the same as the voltage at the connection point 110, because 111 and the photodiode 74" are in the same state.

The resistance value of each of the resistors R113 and R114 is 1 kΩ, so that the voltage at the connection point 117 between the two resistors is の of the supply voltage E1. Also, the resistor R11
5 and R116 also have a resistance value of 1 kΩ, and the voltage at the connection point 118 is the same value as that at the connection point 117. Therefore,
The voltage difference between the connection point 110 and the connection point 117 is large, and the connection point 117 is much higher than the connection point 110. Similarly, the connection point 118 is much higher than the connection point 112.

The resistor R109 and the photodiode 73 "
The bridge point of the bridge circuit formed by the series circuit of the resistors R113 and R114 is the connection point 11
0 and the connection point 117.

Similarly, a series circuit of the resistor R111 and the photodiode 74 ″ is connected to the resistors R115 and R1.
The bridge points of the bridge circuit formed by the series circuit of No. 16 and No. 16 are a connection point 112 and a connection point 118.

The connection point 110 is connected to the base of the P-type transistor TR1, the connection point 117 is connected to the emitter, and the collector is connected to the next-stage N-type transistor TR2.
Connect to the base. The emitter of the transistor TR2 is connected to the anode line 107, and the collector is connected to the next stage P
It is connected to the base of the transistor TR3. The collector of the transistor TR3 is connected to the anode line 107, and the emitter is connected to the base of the next-stage P-type transistor TR4 via the resistor R119.

The emitter of the transistor TR4 is connected to the cathode line 108, and the collector is connected to one end of the field coil F1 of the motor M1.

The connection point 112 has a P-type transistor TR
The base of No. 5 is connected to the emitter at the connection point 118, and the collector is connected to the base of the N-type transistor TR6 at the next stage. The emitter of the transistor TR6 is connected to the anode line 107, and the collector is connected to the base of the next-stage P-type transistor TR7.

The collector of the transistor TR7 is connected to the anode line 107, and the emitter is connected to the base of the next-stage P-type transistor TR8 via the resistor R120. The emitter of the transistor TR8 is connected to the cathode line 108, and the collector is the field coil F of the motor M1.
2 to one end.

One line of the armature of the motor M1 is connected to the anode line 107, and the other line is connected to a common connection position of the filled coils F1 and F2.

In the state of equilibrium as shown in FIG. 6, since the potential of the connection point of the transistors TR1 and TR5 is lower than that of the emitter, no current flows between the base and the emitter. , Transistors TR2, TR3 and TR4, and transistor T
No current flows through R6, TR7 and TR8, and the motor M
No current flows through the first F1 and F2, and therefore does not flow through the armature A.

As shown in FIG. 7, when the light emitted from the light emitter 73 'of the photosensor 73 is blocked by the fan 59 of the irregular shape or the flap 58, the resistance value of the photodiode 73 "increases, and its value becomes more than ten kΩ. Therefore, the potential of the base connection point 110 becomes higher than the potential of the emitter connection point 117, so that the base current flows, the amplified current flows to the emitter, and the amplified current also flows to the base of the transistor TR2. The current becomes amplified with TR3 and TR4, the armature A of motor M1, and the filled coil F
1. Flow from the anode line 107 to the cathode line 108 via the collector and the emitter of the transistor TR4, the armature of the motor M1 rotates, and the bolt 20 is rotated via the speed reducer 33 shown in FIGS. 1
6 is moved toward the inclined side at a gentle speed, and the motor M1 is operated until the shape of FIG. 7 reaches the equilibrium state shown in FIG. When the center of gravity of the suspended object matches the movable suspension 16, and the light of the light emitter 73 'reaches the photodiode 73 ", the resistance value of the photodiode 73" decreases and the connection point 110 of the base of the transistor TR1 is connected. The potential is the connection point 11 of the emitter
Since the voltage instantaneously becomes lower than 7, the base current is cut off, the transistors TR2, TR3 and TR4 are also cut off, and the motor M1 is stopped.

As shown in FIG. 8, when the light emitting body 74 'of the photo sensor 74 is blocked, the electric resistance of the photodiode 74 "increases to more than ten kΩ, and the potential of the connection point 112 at the base of the transistor TR5 changes to the potential of the emitter. Connection point 118
And the base current of the transistor TR6 is amplified by the transistor TR5 to flow, and further, the transistors TR7 and TR7
8 through the armature A of the motor M1, the field coil F2, and the collector and emitter of the transistor TR8 from the anode line 107 to the cathode line 10
It flows to the 8 side. The motor M1 operates and imparts rotation to the bolt 20 via the speed reducer 33 to move the movable suspension 16 gently to the inclined side.

As approaching the center of gravity of the housing 1, the photosensors 73 and 74 gradually turn to enter an equilibrium state as shown in FIG. 6, and the center of gravity of the suspended object and the movable suspension 16 move.
When the light emitting element 74 'matches, the light of the illuminator 74' enters the photodiode 74 ", instantaneously, the potential of the connection point 112 drops, the transistor TR5 cuts off the current, and the transistors TR6, TR7 and TR8 also cut off the current. M
1 stops.

Once the suspended object is suspended vertically, the switch 106 is opened. As for the control circuit 103, the level detector portion is put in the outer box 47 to shield light. The movable suspension 16 can be moved during suspension because the load resistance during movement is small even when the load of the suspended object is applied.

[0047]

According to the present automatic gravity center suspension device, stable suspension can be performed without applying excessive force to the suspended object, and obstacles such as deformation to the housing can be prevented.

Further, the level of the suspended object can be easily and accurately detected by utilizing the level detecting device of the present invention. As a result, if the level detecting device of the present invention is applied to an automatic center of gravity suspension device, The suspension position of the device can be automatically and accurately matched to the center of gravity of the suspended object with high accuracy.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining an automatic center of gravity suspension device A and a level detection device B according to an embodiment of the present invention.

FIG. 2 is a perspective view for explaining a method of suspending the housing 1 using the automatic center of gravity suspension device A and the level detection device B according to one embodiment of the present invention.

FIG. 3 is a front view of the level detecting device B according to the embodiment of the present invention.

FIG. 4 is a plan view of a level detection device B according to one embodiment of the present invention.

FIG. 5 is a side sectional view of a level detecting device B according to one embodiment of the present invention.

FIG. 6 is a diagram for explaining an operation of the level detection device B according to one embodiment of the present invention.

FIG. 7 is a diagram for explaining the operation of the level detection device B according to the embodiment of the present invention.

FIG. 8 is a diagram for explaining an operation of the level detection device B according to one embodiment of the present invention.

FIG. 9 is a circuit diagram illustrating a control circuit according to one embodiment of the present invention.

FIG. 10 is a perspective view of a conventional sling.

[Explanation of symbols]

 A: Automatic gravity center suspension device B: Level detection device 1: Housing 2, 3, Belt 11, 57: Base 12, Suspension unit 14, Fixed suspension 15, 17, Engagement unit 16, Movable suspension 18, Tap hole 20 Bolts 22, 23 ... Shaft ends 31, 35 ... Keys 32 ... Slide couplings 33 ... Reduction gears 34 ... Output shafts 40 ... Motors 47 ... Outer boxes 58 ... Irregular shapes and flaps 59 ... Sectors 60 ... Square holes 61 ... Edges 62 ... Pointed ends 63 ... Main part support 64, 65 ... V-groove 66 ... Deformed and flap support 67, 68 ... Detection edge 73, 74 ... Photo sensor 73 ', 74' ... Light emitter 84 ... Permanent magnet

Claims (2)

[Claims] An automatic center-of-gravity suspension that adjusts the suspension position of the suspension device to the center of gravity of the suspended object by a level detection device that automatically detects the center of gravity of the suspended object when suspending the suspended object. In the apparatus, a hanging portion for hanging a hanging object to be hung for hanging an object to be suspended is provided, a base for firmly holding the hanging portion is provided, and a fixing portion having an engaging portion for forming a linear guide mechanism with a required length is provided on the base. A movable suspension having a linear guide mechanism and a tapped hole provided for movement is provided, and a required bolt is passed through the tapped hole. The two ends of the bolt are supported by a bearing mechanism straddling the fixed suspension, and one end of the bolt is provided with a coupling that can be engaged with the output shaft of the reduction mechanism. Depending on the state detected by the level detection device, And reverse rotation extraction is possible, and by applying power to the motor, a predetermined rotation is applied from the speed reduction mechanism to the bolt via the coupling,
An automatic center-of-gravity suspension device, wherein the movable suspension is movable so as to match the center of gravity of a suspended object. 2. A level detecting device for detecting a center of gravity of an object to be suspended, comprising a fan-shaped irregular shape or a toy, wherein a support portion having a sharp-pointed tip is attached to a main portion of the fan-shaped portion so that the fan-shaped portion can be supported. The tip of the support portion is rotatable on a fan-shaped support to form a deformed shape or a toy that obtains an equilibrium posture of the fan, and the two sloped edges of the fan are used as detection edges for detecting levels, respectively. The two photosensors are respectively supported on the support and arranged outside the two detection edges, and the dislocation variation of the photosensor due to the dislocation variation of the support with respect to the equilibrium posture of the deformed shape and the gauntlet is determined. A level detection device, wherein the detection is performed by blocking and opening the optical path of the photosensor by the detection edge.