KR20190100332A - Reversing device - Google Patents

Abstract

Provided is a reversing apparatus capable of easily inverting a plate-like building material without carrying out the alignment of an intermediate position.
Two sets of reversing apparatuses 1 are used. The lifting lowering drive unit 6 is provided on the bogie 8 provided with the driving wheel 8a and the driven wheel 8b. The holding | maintenance part 2 which holds the plate-shaped building material in which the through-hole was formed in the longitudinal direction is attached so that rotation drive is possible about the rotating shaft 4a of the rotation drive part 4. The holding | maintenance part 2 is comprised by the slider 2a arrange | positioned so that the space | interval can be adjusted, and the fork 2b extended in parallel from this slider 2a. The rotary drive unit 4 is driven up and down by the lift drive unit 6. The drive wheel 8a of the rotation drive part 4, the lift drive part 6, and the trolley | bogie 8 is independently controlled by the radio control signal transmitted to the receiver 22 from the exterior.

Description

Reversing device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for reversing hollow plate-like building materials, such as cement panels.

In recent years, a cement panel called an extruded cement board is widely used for exterior walls of office buildings and the like. This cement panel is lightweight and excellent in fire resistance, sound insulation, and the like.

On the back surface of such a cement panel, it is necessary to attach a metal fitting for mounting to aggregates such as girders in advance. Since a cement panel is conveyed in the state which piled up several sheets, it is common for said bracket to be affixed on-site. Therefore, it is necessary to invert the cement panel in the field.

15 is a diagram illustrating a sorting apparatus 101 of a conventional molding panel.

The sorting apparatus 101 of FIG. 15 can take out one panel at the top from the mountain of the shaping | molding panel laminated | stacked in the horizontal state at the building site. Moreover, the removed panel can also be transferred to a trolley | bogie in the horizontal state or the stacked state.

The classifier 101 has a movable frame 102 composed of a vertical frame 102a and a horizontal frame 102b. The frame 102 has a wheel 103 at the front and a free wheel 104 is provided at the rear.

In addition, the arm 107 having the clamp means 106 is attached to the lifting table 105 which is arranged to be able to move up and down along the vertical frame 102a so as to be able to rotate upward. This clamp means 106 is comprised by the panel stopper 108 provided in the middle of the arm 107, and the clamp member 109 of a front end.

Arm 107 is also maintained in the intermediate position is suspended by the wire 110, to be inclined upward by winding the winch 111 provided on the top of the vertical frame (102a). It is possible.

By using the sorting device 101 of this configuration, the laminated top position of the panel can be clamped by the clamp means 106, and lifted, and at the same time, by lifting the winch 111, the lifted state It is also possible to incline at.

Therefore, the sorting apparatus 101 is useful for attaching the bracket to the back surface of the cement panel. Furthermore, the sorting apparatus 101 can also be moved in the state which raised the cement panel, and can also convey to an attachment position.

In addition, Patent Document 1 discloses a classification device 101 having such a configuration.

1. Japanese Patent Publication No. H05-149005

In the sorting apparatus 101 as shown in FIG. 15, in order to lift up in a balanced manner, it is necessary to exactly position to the intermediate position of a cement panel.

However, since cement panels are often piled up with various lengths, it is necessary to move the sorting device 101 at each time in accordance with the intermediate position of each length direction, which makes the work complicated. .

Therefore, an object of the present invention is to provide an inverting device that can easily invert a plate-like building material without performing alignment to an intermediate position.

In order to achieve the above object, the reversing apparatus of the present invention, while maintaining the hollow plate-like building material formed with a plurality of through holes in parallel, inverted while sandwiching in the direction in which the through holes extend, and can be reversed. A pair of inverting apparatuses, comprising: a holding portion in which at least two forks insertable into the through holes are arranged in parallel, and a rotating shaft disposed in parallel with the direction in which the forks extend and above the forks. And a lift drive unit for rotating and driving the holding unit, and a lift drive unit for lifting and lowering the rotation drive unit.

In addition, the inversion device of the present invention is characterized in that, in addition to the above configuration, the front end side of the fork is formed to have a larger diameter over the entire circumference than the base end side.

In addition, the inversion device of the present invention, in addition to the configuration described above, at least one of the rotation drive unit and the lift drive unit is driven by an electric motor having a characteristic that the rotational speed decreases with increasing load. It is characterized by.

In addition, the inversion device of the present invention, in addition to the above configuration, each of the paired configuration is provided with receiving means for receiving each control signal of the rotation control of the rotary drive unit and the lift control of the lift drive unit, Each said receiving means is set to the same channel, It is characterized by the above-mentioned.

In addition, the inversion device of the present invention, in addition to the above configuration, the holding portion is characterized in that it comprises an expansion and contraction mechanism capable of stretching the fork (伸縮).

In addition, in addition to the above structure, the inversion device of the present invention, the lifting drive unit is disposed so that two channel steels face each other groove side side in the width direction, each of the two It is characterized in that the end edges are provided with support columns, all of which are bent backwards.

In addition, the inversion device of the present invention, in addition to the above-described configuration, the rotation drive unit is in contact with the inner wall of the support pillar in the front-rear direction, the first roller which can be rotated up and down and the width direction And a sliding contact portion having a second roller which can be rotated in contact with each other in a vertical direction.

In addition, the reversing apparatus of the present invention is characterized in that, in addition to the above configuration, a reinforcing rib that extends outwardly from the rear and the width direction is formed at least in the middle region of the vertical direction of the support pillar.

In addition, the reversing apparatus of the present invention, in addition to the above configuration, between the inner wall in the width direction of the support column and the second roller, a reinforcement plate harder than the support column is provided. It features.

As described above, according to the present invention, since the two forks of the holding part are disposed in parallel below the rotation axis of the rotation drive part, the rotation area of the first half of the inversion operation is zero. The torque in the range of -90 degrees is greater than the torque in the rotational region (range of 90 to 180 degrees) in the second half of the inversion operation. In this way, in the rotation region of the first half, in other words, in the initial stage of the inversion operation, it becomes easy to detect a state in which the synchronization is out of the difference in the load between the devices which becomes remarkable.

In addition, according to the present invention, in addition to the above effect, even if the fork due to the load of the plate-shaped building material, if within the range of the diameter difference between the front end side and the base end side, the base end side and the plate-shaped building material Since the contact between them can be prevented, it is possible to safely support the plate-shaped building material at the position penetrated into the through hole by the length of the fork so that no load is applied to the open end where damage such as a defect is likely to occur.

In addition, according to the present invention, in addition to the above effect, when a shift in synchronization occurs, the inverting device preceded by the operation has a larger relative load than the trailing side, so that the rotational speed ( By using the characteristic of the motor in which i) falls, it becomes possible to reduce the shift | offset | difference of synchronization with a trailing side.

Further, according to the present invention, in addition to the above effects, since the pair of inverting apparatuses all have receiving means set to the same channel, it is possible to receive a single control signal and perform the same operation.

In addition, according to the present invention, in addition to the above effect, by placing the reversing device main body close to the opening side of the through hole of the plate-shaped building material, and then stretch the fork, the insertion or removal of the fork into the through hole. This can be done easily.

Further, according to the present invention, in addition to the above effect, since the end edge of the channel steel is bent toward the rear, the strength in the front and rear direction is improved. In particular, since the portion bent and extended from the rear end edge can be installed in connection with a structure such as a rear frame, the support pillar can be prevented from inclining forward.

In addition, according to the present invention, in addition to the above effect, since the sliding contact portion having the first roller and the second roller inside the support column is accommodated, it can be configured compactly.

In addition, according to the present invention, since the reinforcing rib is formed so as to extend outwardly from the rear and the width direction at least in addition to the above effect, the supporting pillar is caused by the pressure from the first and second rollers installed therein. Expansion and deformation can be prevented.

Further, according to the present invention, in addition to the above effect, since the reinforcing plate is provided between the inner wall of the width direction of the support column and the second roller in contact with the width direction, deformation of the support column in the width direction Can be prevented more reliably. Further, since the reinforcing plate is made of a harder material than the supporting column, it is possible to reduce the rolling friction of the second roller.

1 is a perspective view showing a state of use of the reversing apparatus according to the first embodiment of the present invention.
FIG. 2 is an overall perspective view of one of the pair of inverting devices in FIG. 1 as viewed from the front side. FIG.
FIG. 3 is an overall perspective view of the inversion device of FIG. 2 as viewed from the back side. FIG.
FIG. 4 is an enlarged view of the rotation drive unit illustrating the rotation operation of the inversion device of FIG. 2.
FIG. 5 is an enlarged view of a rotation driving unit illustrating a gap adjusting operation of the inversion device of FIG. 2.
6 is a front view of the inversion device of FIG. 2.
Fig. 7 is an enlarged cross-sectional view showing the screw mechanism of the lift drive unit of the inverting device of Fig. 2, (a) is a state in which the holding portion is in an up position, and (b) is a state in which a cement panel is placed. (c) is a figure which shows the state in which the holding | maintenance part fell beyond the mounting position of the cement panel.
8 is a front view of the holding part of the inversion apparatus of FIG. 2.
9 is an overall perspective view of the front side of a reversing apparatus according to a second embodiment of the present invention.
FIG. 10 is an overall perspective view of the rear side of the inversion device of FIG. 9.
FIG. 11: shows the right side view of the inversion apparatus of FIG. 9, (a) is a whole view, (b) is a partial enlarged view of the arm base end side.
It is a schematic diagram which shows the cross section cut | disconnected by the AA line of FIG.
FIG. 13: shows the front view of the inversion apparatus of FIG. 9, (a) is a whole view, (b) is a partial enlarged view of the arm periphery.
FIG. 14 is a plan view of the inversion apparatus of FIG. 9, (a) is an overall view, and (b) is a partial enlarged view of the arm proximal side.
Fig. 15 is a view showing a classification apparatus of a conventional molding panel.

Hereinafter, an inversion device according to an embodiment of the present invention will be described with reference to the drawings.

(First Embodiment)

1: is a perspective view which showed the use condition of the inversion apparatus 1 which concerns on 1st Embodiment of this invention. As shown in Fig. 1, two sets of two inversion apparatuses 1 are used. In FIG. 1, a pair of reversing apparatus 1 comprised by mirror symmetry is shown in the state arrange | positioned so as to sandwich in the longitudinal direction of the cement panel 100 which is a plate-shaped building material. Through-hole 100a is formed in the longitudinal direction in the cement panel 100, and each fork 2b of the inversion apparatus 1 mentioned later is in the state inserted in the said through-hole 100a.

The cement panel 100 used for the exterior wall of a building, etc., has a metal fitting attached to the back surface or both surfaces as a preliminary work for installation. In addition, in order to attach the bracket, the cement panel 100 should be reversed one by one. Next, the schematic structure of the inversion apparatus 1 is demonstrated using FIG. 2 and FIG.

2 is an overall perspective view of the reversing apparatus 1 of the present invention as seen from the front side, and FIG. 3 is an overall perspective view as seen from the back side. In addition, although the inversion apparatus 1 of this invention is a pair of apparatus in which two pieces are used in one set, in FIG. 2 and FIG. 3, only one structure is shown as an example for convenience of description. Specifically, the structure arrange | positioned at the left side toward the advance direction (refer FIG. 1) by the drive wheel 8a (FIG. 3) mentioned later is shown. In the structure arrange | positioned at the right side, with respect to the structure shown in the said FIG. 2, it is comprised by mirror symmetry at least using an electrical equipment.

Referring to Figure 2, 2, which is the configuration of the holding unit 2 for holding a hollow plate-shaped building material formed with a through hole 100a, such as the cement panel 100 shown in the description of the use state described above Two forks 2b are arranged in parallel.

The holding part 2 consists of the slider 2a and the fork 2b, and is attached to the rotation drive part 4 which arrange | positioned the rotating shaft 4a parallel to the extending direction of the fork 2b. The rotation drive part 4 is equipped with the motor (not shown) in the case which is a rectangular parallelepiped. The cement panel 100 hold | maintained by these forks 2b is reversely operated by the rotation drive of the rotation drive part 4 so that it may mention later. The rotation drive unit 4 is attached to the lift drive unit 6.

The holding unit 2, the rotation drive unit 4 and the lifting drive unit 6 is provided in the trolley 8, the whole reversing device 1 is configured to be movable.

Lifting drive unit (6) is attached to the upper end of the screw pillar (6a) and the screw pillar (6a) installed on the bogie (8), the shaft to rotate the screw pillar (6a) It consists of the motor 6b as a drive means, and the support pillar 6c provided upright in parallel with the screw pillar 6a. The rotation drive unit 4 is provided at the tip end side of the arm 6d extending substantially horizontally forward. On the proximal end of the arm 6d, a nut is screwed to the screw column 6d of the lift drive unit 6 to form a feed screw. The structure of the said feed screw is demonstrated in detail using FIG. Thus, the rotation drive part 4 can raise and lower control by axially rotating the screw pillar 6a of the lifting drive part 6 with the motor 6b.

A driving wheel 8a (Fig. 3) is provided at the rear of the cart 8, and a driven wheel 8b is provided at the front. However, it is not limited to this structure, The drive wheel 8a may be provided in the front or intermediate position.

[0044] The driven wheels 8b are arranged in parallel in the width direction in front of the trolley 8, and their traveling directions are directions perpendicular to the direction in which the forks 2b extend. On the other hand, the drive wheel 8a is arrange | positioned at the same side in which the said holding part 2 is provided in the width direction, and the travel steering wheel 8d (figure 1) so that a driving direction can be changed. It is installed integrally with 3). Moreover, the free wheel 8c which can run in all directions is provided in the side opposite to the drive wheel 8a in the width direction slightly ahead of the drive wheel 8a. If the traveling steering wheel 8d is provided with the mechanism which locks in a specific direction, traveling will be stabilized. For example, when the locking mechanism which locks in a straight direction is provided, it is possible to stably parallel move in the state which hold | maintained the plate-shaped building material.

Referring to FIG. 3, on the trolley 8, a battery 20 for driving the rotation driving unit 4, the elevating driving unit 6 (FIG. 2) and the driving wheel 8a, and for controlling them The control panel 21 is also mounted. In addition, the control panel 21 is provided with a receiver 22 that receives a control signal for rotation control, lift control and drive travel control. Thereby, as well as direct control, as shown in FIG. 1, it is also possible to perform remote operation using the radio transmitter 18. FIG.

Here, referring to FIG. 1 again, in order to insert the fork 2b into the through hole 100a of the cement panel 100 as shown in FIG. 1, first, each of the longitudinal direction of the cement panel 100 The inversion apparatus 1 is arrange | positioned in the vicinity of the edge part. At this time, the burden on a worker can be reduced by the drive travel by the drive wheel 8a. Specifically, the driving steering wheel 8a of the driving wheel 8a is unlocked and the driving wheel 8a is moved close to the end of the cement panel 100 by driving travel while changing the direction of the steering wheel, and the position of the fork 2b is passed through. Adjust to the position of (100a).

Returning to FIG. 2, the expansion and contraction mechanism is adopted in the fork 2b of the holding part 2 of the inversion apparatus 1 which concerns on this embodiment. In Fig. 2, the arrangement of the contracted state of the fork 2b is shown overlapping with a dotted line. When the fork 2b is brought close to the cement panel 100 in the contracted state of the fork 2b as described above, and the fork 2b is extended after the alignment is performed, the fork 2b is more easily inserted than the whole inversion device 1 is moved. ) Can be inserted.

Next, the rotation drive mechanism will be described with reference to FIGS. 4 and 5.

FIG. 4 is an enlarged perspective view of the periphery of the rotation drive unit 4 of the reversing apparatus 1 of FIG. 2, in which the holding unit 2 having the fork 2b is rotated. The state in which the two forks 2b maintain the same height is shown by the solid line, and the state slightly rotated is shown by the dotted line.

As shown in FIG. 4, the fork 2b of the holding | maintenance part 2 is arrange | positioned in the position which is equidistant from the rotating shaft 4a of the rotation drive part 4, respectively. Thereby, when the center position of the short side direction of a cement panel is centered on a rotation center, it becomes possible to perform a reverse operation in a balanced manner.

FIG. 5 is an enlarged perspective view of the periphery of the rotational drive unit 4 of the inversion device 1, similarly to FIG. 4, and shows a space adjusting mechanism for adjusting the space of the fork 2b. The enlarged state is shown by overlapping the dotted lines.

The fork 2b of the holding part 2 according to the present embodiment is attached to the slider 2a, the slider 2a is arranged by screw treatment (對 偶) by one screw shaft (2c), respectively. have. However, the screw thread of the screw shaft 2c to which each slider 2a is screwed is cut | disconnected so that it may be reversed from each other. Thereby, by rotating the input part 2ca of the screw shaft 2c end, the sliders 2a are mutually separated or approached with respect to the position of the rotation shaft 4a, and the space | interval of the fork 2b is carried out. It is possible to adjust. Therefore, after performing center position alignment with respect to the through-hole 100a (refer FIG. 1) of the cement panel 100, since the space | interval of the fork 2b can be fine-adjusted, it is not necessary to move the inversion apparatus 1 whole. , Working efficiency is improved. Moreover, in the state which inserted the fork 2b into the through-hole 100a, using the space | interval adjustment mechanism which consists of the slider 2a and the screw shaft 2c, the inner wall of the through-hole 100a in the direction of spreading or narrowing. If it is maintained in the pressure contact state, it can be stabilized without rattling in reverse operation.

In the present embodiment, the knob is provided at the end of the screw shaft (2c) as the input unit (2ca), the work efficiency is improved by providing an input unit that can be used manually.

Next, the lifting mechanism will be described with reference to FIG.

The motor (6b) is installed on the top of the support pillar (6c) is installed in parallel with the screw pillar (6a). The screw pillar 6a is configured to transmit rotation of the motor 6b by a bevel gear (not shown) provided inside the upper end.

The above-mentioned rotation drive part 4 is arrange | positioned by the sliding treatment with respect to the support pillar c, and the feed screw mechanism is comprised with respect to the screw pillar 6a.

Thereby, by controlling the rotation of the motor 6b, it becomes possible to drive the rotation drive part 4 along the support column 6c.

Next, the transfer screw mechanism will be described in detail with reference to FIG.

FIG. 7 shows a cross-sectional view of the feed screw mechanism configured for the screw post 6a. In addition, the detailed structure is abbreviate | omitted and shown here typically for the convenience of description. The position of the vertex of the triangle shown by the dashed-dotted line in the figure has shown the position of the upper surface of the mountain in which plate-shaped building materials, such as a cement panel, are mounted. In other words, the dashed-dotted line indicates the lower limit position of the work. The nut 6e of the feed screw is screwed into the screw column 6a. The nut 6e is slidably penetrated with respect to the locking fastening portion 6f provided in the arm 6d (see FIG. 2) of the lift drive unit 6. The lower side of the locking fixing portion 6f is a hydraulic plate 6g that receives a load applied through the locking fixing portion 6f. Since the nut 6e is formed with a flange engaged with the hydraulic plate 6g, it is possible to lift the hydraulic plate 6g and the locking fixing part 6f through the nut 6e.

7 (a) schematically shows a state where the locking portion 6f is further lifted up than the height at which the work target member is placed. (b) has shown typically the state when the workpiece | work object is grounded at a mounting position. (c) shows a state in which the nut 6e is lowered further down than the state in which the member to be worked is grounded at the mounting position.

As shown in FIG. 7, the nut 6e is configured to be slidable in the range of the length L with respect to the locking portion 6f. Thereby, as shown in FIG.7 (c), the cement panel 100 hold | maintained is more than the position of the nut 6e in the state which contacted the upper surface position of the mountain where the other cement panel 100 was mounted. Downward, it is possible to lower by approximately the length L. That is, the fork 2b can be safely lowered to the position where the load disappears completely without damaging the work object such as plate-like building material.

As described above, in the present embodiment, since there is a margin in the operating range by the length L further below the lower contact position with respect to the work target of the fork 2b, even if the worker is operating with the naked eye while looking rough. In addition, it is possible to work safely without destroying the building materials to be worked. Therefore, the structure for performing control using the pressure sensor which detects a load and the range sensor which measures the distance to a mounting surface is unnecessary, and the cost and weight can be drastically reduced. Particularly, in the shop floor, if the device can be brought in by using an elevator, it is very advantageous not only in terms of work efficiency but also in carrying out cost, and therefore, there are many advantages in the configuration capable of reducing the weight.

Next, the shape of the fork 2b will be described. 8 is a front view of the holding part 2 viewed in the direction in which the screw shaft 2c extends. Fig. 8A shows the positional relationship before and after the expansion and contraction sliding of the fork 2b with respect to the slider 2a. The extended state is indicated by a solid line, and the contracted state (retracted state) is indicated by a dotted line. The front end side of the fork 2b which concerns on this embodiment is formed so that diameter may become one size larger than the base end side in the whole circumference. This step is used as a stopper to define the rear limit at the time of retreat.

8 (b) shows a state in which a load is applied from the cement panel 100 to the fork 2b in the extended state. When a large force is applied to the fork 2b, it may slightly bend downward. However, as described above, a step is formed at the tip of the fork 2b so as to increase by one size. As a result, even when warpage occurs, if the amount of warpage is small, the cement panel 100 is supported only at the tip side of the fork 2b without contacting the cement panel 100 at the base end side. Therefore, it is a structure in which the load to the edge part which is easy to produce damages, such as a crack, is hard to produce. Although the bending occurs to the extent that the proximal end of the fork 2b and the cement panel 100 come into contact with each other, since most of the load can be received from the distal end of the fork 2b, There is no change in that damage is unlikely.

In addition, even if the contact position with the cement panel 100 by the reverse operation is moved from the side surface of the fork (2b) to the bottom surface side, the step difference on the front end side is formed over the entire circumference, so as to cement The end of panel 100 is protected.

The inversion apparatus 1 described above is comprised so that battery operation can be performed independently. In addition, the receiver 22 is provided separately. The inversion apparatus 1 which concerns on this embodiment does not have complicated feedback control means, such as detecting the operation state of each other and regulating one's movement. Instead, each of the receivers 22 is set to the same channel, the same control signal is transmitted from one radio transmitter 18, and the operation is performed at the same time, thereby making it possible to perform synchronized work. The same channel referred to herein means the same frequency or frequency band used in wireless communication, or the same address when the communication is carried out in packets.

Therefore, the drive circuit and the communication means between the objects constituting a complicated servo mechanism are unnecessary, and the weight and cost can be greatly reduced.

Moreover, the characteristic structure is that the electric motors (motors 4b and 6b) used for drive of rotation drive and a lift drive do not have the control mechanism for maintaining a constant rotation speed. Therefore, at least one of the motor 4b of the rotation drive part 4 and the motor 6b of the lift drive part 6, the characteristic which a rotation speed falls with increase of load is actively used. Next, this mechanism will be described.

As shown in FIG. 2, the fork 2b of the holding | maintenance part 2 of the reversing apparatus 1 which concerns on this embodiment is provided below the rotating shaft 4a of the rotation drive part 4. As shown in FIG. For this reason, it becomes possible to lift the cement panel 100 of a low position, without lowering the arm 6d of the lifting drive part 6 largely. When the cement panel 100 lifted in this way is reversed, since both forks 2b are spaced downward from the rotation shaft 4a, the rotation torque gradually increases in the rotation region of 0 to 90 degrees, The maximum is at the position of 90 degrees.

For example, when the motor 4b of the rotation drive unit 4 has a characteristic that the rotational speed is lowered due to an increase in load, in the rotational region of 0 to 90 degrees, gradually increases with increasing rotational torque. The rotation speed is lowered.

Here, in the initial state, when a deviation occurs in the phase of each inverting device 1, or when a voltage difference is generated due to the difference in the storage amount of the battery 20, the motor (4b) Rotation speed does not coincide completely, and there is a possibility that slight deviation of synchronization occurs. In this case, deflection occurs in the lifting force in the rotational region of 0 to 90 degrees, and the load on the fork 2b on the preceding side becomes large. However, since the rotational speed is greatly reduced with the increase in load, the preceding side is remarkably lowered. That is, in the inversion apparatus 1 which concerns on this embodiment, operation | movement of a larger load is suppressed, without using a complicated feedback control circuit, and it becomes possible to operate so that a subsequent side may be automatically synchronized.

The above operation becomes more remarkable as the fork 2b is spaced apart from the rotation shaft 4a. Therefore, in consideration of the relationship between the driving ability of the motors 4b and 6b and the weight of the cement panel 100 to be handled, if the distance between them is set, the synchronization is performed at the initial stage of the inversion operation of 0 to 90 degrees. Misalignment is greatly alleviated, and subsequent inversion operation can be stabilized.

The same applies to the lift driving unit 6. A load larger than that of the subsequent side is applied to the side on which the lifting operation is performed in advance, whereby the lowering of the rotational speed is increased. Therefore, the movement of the preceding side is suppressed, and synchronization is automatically achieved in the ascending operation.

As described above, according to the inverting apparatus 1 of the present invention, the rotational speed is changed with respect to the load of the electric motors 4b and 6b with respect to the slight synchronization deviation caused by the adjustment performed by the operator while the naked eye is observed. By using the characteristic, it acts to be automatically relieved, so that it is possible to prevent the damage of the cement panel 100 and operate safely without using a complicated servo mechanism.

Accordingly, the apparatus can be miniaturized and can be easily moved using an on-site material transport elevator or the like.

In addition, even if the initial setting is relatively rough, the operation is performed so that synchronization is automatically achieved between devices, and therefore no skill is required for the work.

(2nd Embodiment)

9 is an overall perspective view of the front side of the reversing apparatus 51 according to the second embodiment of the present invention. 10 is a whole perspective view of the back side of the reversing apparatus 51. The schematic structure of the inversion apparatus 51 is demonstrated with reference to FIG. 9 and FIG. 10 suitably.

Similarly to the inversion device 1 according to the first embodiment, two sets of the inversion devices 51 shown in FIGS. 9 and 10 are used in one set. The inner side shown in the drawings is the inner side in the working space constituted by the inverting apparatuses 51 having two sets, and in the case of explaining the inner side (center side) in the single inverting apparatus 51, "Inside of the apparatus" will be referred to. Moreover, the side which hold | maintains or reverse-operates the plate-shaped building material which is a work object is made into the front, and the side in which the drive wheel and traveling control handle mentioned later are provided is made backward. In addition, here for the convenience of explanation, only one of the paired structures is shown as an example like 1st Embodiment. Specifically, the structure arrange | positioned at the left side when facing forward is shown. As a structure arrange | positioned at the right side, at least the part except an electrical component is comprised by mirror symmetry with respect to the structure shown in FIG. 9 and FIG.

The holding | maintenance part 52 which lifts plate-like building materials, such as a cement panel, is substantially the same structure as the reversing apparatus 1 of 1st Embodiment. Specifically, the holding part 52 has two forks 52b extending in parallel inward and a slider 52a for adjusting these gaps. The two sliders 52a are disposed in the feed screw structure with respect to the portions of the screw shafts 52c that are cut by reverse screws from each other. Thereby, the two sliders 52a can be slid simultaneously by rotating the one input part 52ca provided in the edge part of the screw shaft 52c.

Moreover, the holding | maintenance part 52 is provided with four guide rollers 52d in the side in which the fork 52b is provided in the width direction of the reversing apparatus 51. As shown in FIG. These guide rollers 52d are the structures which are not provided in the reversing apparatus 1 which concerns on 1st Embodiment. The fork 52b can be evacuated to the outside similarly to the inversion apparatus 1 of FIG. In the above retracted state, when the inversion device 51 is brought close to the end of the cement panel while pressing the guide roller 52d as a guide, the position of the fork 52b can be safely and easily secured without cutting the end of the cement panel. It is possible to do

This holding unit 52 is attached to the rotation drive unit 54. The fork 52b of the holding | maintenance part 52 is arrange | positioned in parallel with the rotating shaft 54a of the rotation drive part 54. As shown in FIG. In addition, the fork 52b is provided in the position lower than the rotating shaft 54a. The rotation drive part 54 is equipped with the motor 54b in the case of a rectangular parallelepiped. The cement panel hold | maintained by these forks 52b is reversely operated by the rotation drive of the rotation drive part 54 similarly to the inversion apparatus 1 of FIG. This rotation drive part 54 is attached to the lift drive part 56.

The holding part 52, the rotation drive part 54 and the lifting drive part 56 are provided on the trolley | bogie 58, also in the point which the whole reversing apparatus 51 is comprised so that a movement is possible, FIG. It is the same as the inversion apparatus 1 of 1.

Lifting drive unit 56 is provided on the upper end of the screw column (56a) and the screw column (56a) standing on the cart 58, the motor as drive means for axially rotating the screw column (56a) ( 56b) and the support pillar 56c which stands up and surrounds the screw pillar 56a. The rotation driver 54 is provided at the tip end side of the arm 56d extending substantially horizontally forward. On the proximal end of the arm 56d, a nut is screwed to the screw column 56a of the lift drive unit 56 and constitutes a feed screw. Thus, the rotation drive part 54 can perform lifting control by axially rotating the screw pillar 56a of the lifting drive part 56 by the motor 56b.

Next, the trolley | bogie 58 is demonstrated. Similar to the trolley | bogie 8 of the inversion apparatus 1 of FIG. 1, the driven wheel 58b is arrange | positioned also in the trolley | bogie 58 so that it may be parallel to a width direction. By the way, in the trolley | bogie 58, the inner side is strengthened rather than the outer side among the two leg parts 58c with which the driven wheel 58b is attached. Thus, the structure in which the leg part 58c of the trolley | bogie 58 is asymmetrical differs from the inversion apparatus 1 of FIG. Specifically, the inner leg portion 58 is reinforced by a bracing portion 58e extending from the rear outer side to the front inner side. In the rear, only one driving wheel 58a is provided at approximately the center of the width direction. The drive wheel 58a can be switched in direction by a travel steering wheel 58d extending obliquely upward.

At the rear of the trolley 58, a battery 70 for driving the rotary drive unit 54, the elevating drive unit 56 and the driving wheel 58a, and a control panel 71 for controlling them are also placed. (See Figure 10). This control panel 71 is provided with receiving means for receiving control signals for rotation control, lifting control, and driving travel control. Thereby, not only can it control directly, but also it can also perform remote operation by radio transmission similarly to the inversion apparatus 1 of FIG.

The rotation drive mechanism is basically the same as that of the inversion device 1 of FIG. 1, and thus description thereof is omitted here.

Next, the lifting mechanism will be described with reference to FIGS. 9 and 10.

It is as described above that the motor 56b is installed on the upper end of the support pillar 56c installed in parallel with the screw pillar 56a. The screw column 56a has a structure in which rotation of the motor 56b is transmitted by a bevel gear (not shown) provided inside the upper end. In such a configuration, by controlling the rotation of the motor 56b, the rotation driving unit 54 can be driven up and down along the support pillar 56c. This basic mechanism is the same as the inversion apparatus 1 of FIG. However, in the structure which concerns on this embodiment, the structure of the support pillar 56c which supports a load differs significantly. The support pillar 6c of the reversing apparatus 1 of FIG. 1 was comprised by the two angled pillar members which respectively stand in the axillary part of the screw pillar 56a, and install it. On the other hand, the support column 56c of the reversing apparatus 51 is comprised combining the channel steel.

In the first embodiment, the transfer screw mechanism described with reference to FIG. 7 is also provided with the inversion device 52 according to the present embodiment.

Next, the structure of the support pillar 56c and its surroundings will be described with reference to FIGS. 11 to 14.

FIG. 11 is a left side view of the reversing apparatus 51 of FIG. 9, FIG. 11 (a) shows an overall view, and FIG. 11 (b) shows a partial enlarged view of the base end side of the arm 56d. .

First, reference is made to FIG. 11 (a). When the cement panel is lifted by the fork 52b of the holding part 52, as shown by the downward arrow, the force F which seems to tilt the front of the arm 56d downward acts. In order to reduce unnecessary loads other than the axial direction generated in the screw column 56a (refer to FIG. 9) by such a force F, sliding contacts 57 sliding along the inner wall of the support column 56c are provided. have. This sliding contact 57 is shown in dashed lines. In this embodiment, two sets of sliding contact parts are provided up and down along the support column 56c.

Here, to aid in understanding the positional relationship between the sliding contact portion 57 and the support column 56c, reference is made to FIG. 12 showing a cross section taken along line A-A of FIG. 11 (a).

In FIG. 12, mainly paying attention to the structure of the support pillar 56c and the sliding contact portion 57, for convenience of description, the illustration of the internal structure of the control panel 71 or other surrounding structures are omitted. It is typically shown. In reality, wiring of a drive system such as the rotary drive unit 54 or the like is housed inside the rear cover 59. However, since the wiring structure is unnecessary for the description of the skeleton structure, the illustration of these wirings is omitted. .

As shown in FIG. 12, the support column 56c is comprised by the two channel steels 60 arrange | positioned so that the groove side may face. The edges of these channel steels 60 are all bent backwards. Specifically, the end edge of the front plate portion 60a of the channel steel 60 is formed as the bent portion 60d, and the end edge of the thick plate portion 60b is the bent portion 60e. It is formed as.

Sliding contact portion 57 is the front and rear direction roller 57a (first roller) and the side plate portion 60c side which is disposed in contact with the front plate portion 60a or the rear plate portion 60b of the channel steel 60. The width direction roller 57b (2nd roller) arrange | positioned in contact with is provided. Moreover, about the width direction, the reinforcement board 61 for improving the intensity | strength of the side of the channel steel 60 is provided between the side plate part 60c and the width direction roller 57b. It is preferable to use a member having a higher hardness than the channel steel 60 for the reinforcing plate 61. For example, if the reinforcing plate 61 of carbon steel is smaller than the front-rear roller 57a, sufficient strength can be obtained even for the widthwise roller 57b in which pressure tends to be concentrated.

In general, since the channel steel is opened in one side, the channel steel is inferior in strength to that of the pipe member or the square member. In the inversion apparatus 51 which concerns on this embodiment, since the groove side of the channel steel 60 is used facing the width direction, it is necessary to reinforce the intensity | strength of the front-back direction. In contrast, as described above, the bent portions 60d and 60e are formed in the channel steel 60 according to the present embodiment, so that sufficient strength can be obtained even in the front-rear direction.

In addition, by using the channel steel 60 that is open in one direction, the sliding contact portion 57 for stabilizing the lifting mechanism can be disposed in the support column 56c, so that the design can be made very compact. There is an advantage.

Here, returning to FIG. 11 again, reference is made to FIG. 11 (b) in which the proximal end side of the arm 56d on which the sliding contact portion 57 is provided is enlarged.

In the inversion device 51 according to the present embodiment, the front and rear rollers 57a of the sliding contact portion 57 disposed on the upper side are arranged to contact the front plate portion 60a of the channel steel 60, and the rear side. And a slight gap are provided between the plate and the thick plate portion 60b. In contrast, the front-rear roller 57a of the sliding contact portion 57 disposed below is arranged to contact the rear plate portion 60b of the channel steel 60, and a small gap between the front and the front plate portion 60a is provided. It is prepared. Thereby, even if the downward force F as shown to Fig.11 (a) acts on the arm 56d, it can receive load stably by the support column 56c, and it generate | occur | produces the screw column 56a. The load of the rotation can be reduced.

Next, the relationship between the support column 56c and the sliding contact portion 57 will be described by changing the viewpoint in the front-rear direction. FIG. 13: is a front view of the inversion apparatus 51 of FIG. 9, FIG. 13 (a) has shown the whole view, and FIG. 13 (b) has shown the enlarged view around the arm 56d.

Here, the cement panel 100 to be worked is indicated by a dotted line. FIG. 13 (a) shows a state in which one sheet is lifted from the mountain of the cement panel 100 in which a plurality of sheets are placed. Since the weight of one sheet is several hundred kilos, the cement panel 100 used for the exterior wall of a building adds considerable load to one, even if it lifts using two sets.

Reference is made to FIG. 13 (b) which enlarges the periphery of the arm 56d. The sliding contact 57 is shown in dashed lines. As mentioned above, the sliding contact part 57 is provided with the width direction roller 57b which contacts the reinforcement board 61 against the inner wall of the side plate part 60c of the support pillar 56c. Thereby, when a load is applied to the fork 52b of the holding | maintenance part 52 provided toward the inner side, the width direction roller 57b of the upper sliding contact part 57 is the width direction inner side with respect to the support pillar 56c. Pressed firmly against the reinforcement plate 61. In contrast, the widthwise roller 57b of the lower sliding contact portion 57 is pressed against the outer reinforcing plate 61. In this way, also in the width direction, reaction force can be stably received by the support pillar 56c.

[0104] Next, the configuration around the support column 56c will be described with a plan view. FIG. 14: is a top view of the inversion apparatus 51 of FIG. 9, FIG. 14 (a) has shown the whole view, and FIG. 14 (b) has shown the partial enlarged view of the base end side of the arm 56d. As in FIG. 13, the cement panel 100 is indicated by a dotted line.

14 (a), it can be seen that a plate-shaped outer reinforcing rib 62 is formed around the support column 56c. In FIG. 14B, the outer reinforcement ribs 62 are diagonally drawn for convenience in determining the shape. The said outer reinforcement rib 62 is formed so that the support pillar 56c may connect three directions except the front. Thereby, even if a strong pressure is applied to the inner wall of the support column 56c from the front-rear roller 57a or the width direction roller 57b of the sliding contact part 57, expansion of the support column 56c is performed. It is possible to prevent deformation by

In addition, since the channel reinforcement ribs 62 are arranged integrally with each other by the outer reinforcing ribs 62, the rigidity of the entire support pillar 56c is also improved. .

The outer reinforcement ribs 62 should just be provided in the intermediate | middle area | region of the support column 56c through which the sliding contact part 57 passes. In this embodiment, as shown in FIG. 13, it arrange | positions using the small space between the battery 70 and the control panel 71. As shown in FIG.

As described above, in the reversing apparatus 51 according to the present embodiment, the support pillar 56c is provided compactly in the width direction of the apparatus while ensuring sufficient strength. Thereby, as can be seen from FIG. 13 and FIG. 14, the space on the inner side, that is, the side on which the fork 52b is provided can be used more widely than the support column 56c. Therefore, even when the cement panel 100 is advanced in the lifted state, since there is no interference with the acid of the remaining cement panel 100, the freedom in work is increased.

At the same time, by designing the support column 56c compactly, the space on the side where the fork 52b is not installed can be utilized widely. In other words, in the width direction and the front-rear direction, when the heavy material (for example, the battery 70, the control panel 71, etc.) is arranged as a counterweight on the side opposite to the holding part 52 via the support column 56c. High degree of design freedom. Thereby, since the whole balance centered around the support pillar 56c becomes favorable, the inversion apparatus 51 is stabilized.

[0110] Furthermore, in the channel steel 60 constituting the support column 56c, the end edge of the rear plate portion 60b is bent backward as the bent portion 60e, so that the rear structure (eg, the bogie 58) ) And easy to install by connecting to frame etc.). In this way, when provided in connection with the rear structure, the inclination of the support pillar 56c to the front side can be prevented and stabilized.

In addition, the structure demonstrated above is one Embodiment of this invention, and also includes the following modifications.

[0112] In the above first and second embodiments, the forks 2b and 52b have shown the configuration in which two holders 2 and 52 are provided as an example, but the present invention is not limited thereto and includes three or more configurations. do. However, in the case of three or more, if two forks arrange | positioned on both outer sides satisfy | fill the same conditions as the forks 2b and 52b mentioned above, the same effect can be acquired.

[0113] In the above first and second embodiments, a configuration in which the batteries 20 and 70 are used as power sources is taken as an example, but a configuration using commercial power sources may be used.

[0114] In addition, in the above first embodiment, at least one of the rotation drive unit 4 and the lift drive unit 6 has a motor (motors 4b, 6b) having a characteristic that the rotational speed decreases with increasing load. ) Is shown as an example, but specifically, a DC motor that is not provided with a constant speed feedback control circuit is preferable. In particular, a DC brushless motor is suitable when the driving circuit is prevented from being completely locked and provided with no excessive current flowing in the stopped state.

[0115] Furthermore, the electric motor whose rotational speed decreases with increase in load includes those provided with an electromagnetic clutch. Specifically, a structure in which a powder clutch, a hysteresis clutch, or the like is interposed in a power transmission path for power absorption or torque limiter may be mentioned. If the motor having such a configuration is used, even if the movement of the work target side (the output side of the clutch) is completely stopped due to overload, a suitable slip occurs in the powder clutch or the like, so that the motor groove side (the input side of the clutch) ) Can maintain a constant rotation speed. Therefore, since overcurrent does not generate | occur | produce in order to maintain a rotational speed, burden of a battery can be reduced. In addition, even if the stop side starts when the synchronization is again performed after the two inverting devices 1 as described above occur, the configuration of the powder clutch or the like acts as a shock absorbing mechanism, causing unnecessary recoil. It is possible to drive safely without doing anything. Such a configuration can be applied as it is to the inversion device 51 according to the second embodiment.

[0116] In addition, in the first embodiment described above, the configuration in which the driving wheels 8a are united at the rear is shown as an example. However, when there is a margin of power, the plurality of driving wheels may be provided. Furthermore, it does not need to arrange to one side in the width direction.

In addition, in said 2nd Embodiment, the structure which combined the front-back direction roller 57a and the width direction roller 57b about the sliding contact part 57 was shown as an example. However, as long as the load applied from the arm 56d of the elevating drive unit 56 can be received and the structure does not interfere with the elevating motion, it may be replaced by a sliding contact member other than the roller. For example, wear resistant polymer materials may be used. Moreover, the combination of such a polymer material and a roller may be sufficient.

(Industrial availability)

[0118] The inversion apparatus of the present invention can be designed compactly because it does not involve a precise tuning mechanism. As a result, a material elevator or the like can be used, which is useful in a small building site. Moreover, it is not limited to plate-like building materials, such as a cement panel, It can use as an apparatus which raises or reverses an elongate building material safely.

1: inverting device
2: holding part
2a: slider (spacing adjustment mechanism)
2b: fork
2c: screw shaft (spacing adjustment mechanism)
2ca: input
4: Rotational Drive
4a: axis of rotation
4b: motor
6: lifting drive unit
6a: screw column (feed screw mechanism)
6b: motor
6c: support pillar
6d: arm
6e: Nut (feed screw mechanism)
6f: Jamming Government
6g: hydraulic plate
8: balance
8a: drive wheel
8b: driven wheel
8c: free wheel
8d: drive steering wheel
18 radio transmitter (transmission means)
20: battery
21: control panel
22 receiver (receiving means)
51: reverse device
52: holding part
52a: slider (spacing adjustment mechanism)
52b: fork
52c: screw shaft (spacing adjustment mechanism)
52ca: input unit
52d: guide roller
54: rotation drive
54a: axis of rotation
54b: motor
56 lift drive unit
56a: screw column (feed screw mechanism)
56b: motor
56c: support column
56d: arm
57: sliding contact
57a: front and rear direction rollers (first roller)
57b: width direction roller (second roller)
58: balance
58a: drive wheel
58b: driven wheel
58c: leg
58d: drive steering wheel
58e: bracing
59: back cover
60: channel steel
60a: front panel
60b: thick plate part
60c: side plate
60d, 60e: bend
61: reinforcement plate
62: outer reinforcement rib
70: battery
71: control panel
100: cement panel (plate-shaped building material)
100a: through hole
101: classification device
102: frame
102a: vertical frame
102b: horizontal frame
103: wheel
104: free wheel
105: platform
106: clamp means
107: arm
108: Panel Stopper
109: clamp member
110: wire
111: winch
F: force
L: length

Claims (9)

A pair of inverting apparatuses capable of holding and inverting a hollow plate-like building material in which a plurality of through holes are formed in parallel are sandwiched in the direction in which the through holes extend.
A holding part in which at least two forks insertable into the through hole are arranged in parallel;
A rotational shaft disposed in parallel with the direction in which the fork extends and above the fork to rotate and drive the holding portion;
An elevating drive unit for elevating driving the rotation driving unit.
Inverter comprising a. The method of claim 1,
A tip end side of the fork is formed so as to have a larger diameter over its entire circumference than a base end side. The method according to claim 1 or 2,
At least one of the said rotation drive part and the said lift drive part is driven by the electric motor which has the characteristic that a rotation speed falls with increase of a load. The method according to any one of claims 1 to 3,
Receiving means which receives each control signal of the rotation control of the said rotation drive part, and the elevation control of the said lift drive part is provided in each paired structure,
And the receiving means is set to the same channel. The method according to any one of claims 1 to 4,
The said holding part is equipped with the expansion | extension mechanism which can stretch and operate the said fork. The method of claim 1,
The lifting drive unit is a support column in which two channel steels face each other's groove side in the width direction, and each of the two end edges is bent toward the rear. Inverter comprising a. The method of claim 6,
The rotation drive unit includes a sliding contact having a first roller that is in contact with the inner wall of the support column in the front-rear direction and rotates up and down, and a second roller that is in contact with the width direction and rotates up and down. Reversing device characterized. The method of claim 7, wherein
Reinforcement ribs are formed in the middle area | region of the up-down direction of the said support pillar at least, and the reinforcement rib extended to the outer side from the rear direction and the width direction. The method according to claim 7 or 8,
A reinforcement plate harder than the support column is provided between the inner wall of the width direction of the support column and the second roller.

Images