JPH07109838A - Floor panel laying device - Google Patents

Abstract

PURPOSE:To lay floor panels on a concrete floor with easy work in a flat surface without a step difference. CONSTITUTION:A main body 21 suspended by an arm 14 of a work vehicle is equipped with four bolt turning mechanisms 40, a panel suction member 65 and three floor panel height sensors 60. A driver 46 of each bolt turning mechanism 40 is engaged with a height adjusting bolt 73 screwed with an insert 71 of a floor panel B which is suction-supported, while a contact shoe 63 of the floor panel height sensor 60 is protruded more downward than an upper surface of the floor panel B. This contact shoe 63 is brought into contact with an upper surface of a reference floor panel to be pushed in, and based on a stroke thereof the driver 46 is turned to move the bolt 73 inward and outward for height adjustment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for laying a floor panel or the like on a concrete floor.

[0002]

2. Description of the Related Art In recent years, electric office equipment such as computers and word processors are often used in offices, and a space is formed under the floor of the office, and wiring is housed in the space. For example, as shown in FIG. 1, a bolt 2 for height adjustment is screwed into a floor panel 1, the bolt 2 is in contact with the concrete floor 3, and the floor panel 1 is laid. The floor panel 1 and the concrete floor 3 Form a space 4 between
The wiring is housed in the space 4. 1 in FIG.
a is a finishing panel or carpet mounted on the floor panel 1.

[0003]

Since the surface of the concrete floor 3 has fine irregularities, the projecting length of the bolt 2 is adjusted so that the floor panels 1 are flat surfaces without steps. I'm laying.

For example, as shown in FIG. 2, a marking line 6 is drawn on the side wall 5, and a worker manually installs a plurality of floor panels 1 at the corners between the concrete floor 3 and the side wall 5 by the protruding length of the bolt 2. While laying the floor panel 1 along the marking line 6 so as to form a flat surface without steps, and then, as shown in FIG. 3, the floor panel 1 is laid temporarily in continuation with the floor panel 1 laid at the corner. Then, the operator manually adjusts the protruding length of the bolt 1 so that the temporarily placed floor panel 1 becomes horizontal by using a spirit level so that each floor panel 1 becomes a flat surface without steps. I'm laying.

As described above, in order to lay a plurality of floor panels 1 on the concrete floor 3 so as to have a flat surface without steps, an operator manually adjusts the protruding length of the bolt 2 while looking at the level. Since it is made horizontal so that the work takes a very long time, the floor panel laying work is extremely inefficient, and the worker must bend down to make the work difficult.

Therefore, an object of the present invention is to provide a floor panel laying device capable of solving the above-mentioned problems.

[0007]

[Means for Solving the Problems] Main body 21 and this main body 2
1, a plurality of bolt rotation mechanisms 40 each having a screwdriver 46 that can be engaged and disengaged with a bolt 73 screwed to the floor panel B, a plurality of floor panel height sensors 60 attached to the bolt rotation mechanisms 40, and the main body. A floor panel laying device including a panel adsorbing member 65 attached to 21 and a controller 70 that controls rotation of a driver 46 of a bolt rotating mechanism 40 based on a detection signal of the floor panel height sensor 60.

[0008]

[Operation] While the floor panel B is suction-supported by the panel suction member 65, the driver 46 of the bolt rotation mechanism 40 is engaged with the bolt 73 screwed to the floor panel B, and the floor panel B suction-supported in this state is supported. By arranging according to the reference panel, the floor panel B can be laid at the same height as the reference floor panel by controlling the rotation of the driver 46 of the bolt rotating mechanism 40 by the detection signal from the floor panel height sensor 60. The person only has to perform the suction support work and the placement work of the floor panel,
Since the troublesome bolt height adjustment work is unnecessary, it is possible to lay a floor panel on a concrete floor on a flat surface without any steps by simple work.

[0009]

[Example] As shown in FIGS. 4 and 5, the work vehicle a is provided with a bogie 10, and a revolving structure 11 is provided near the rear of the bogie 10.
Is provided, and the revolving unit 11 has the first and second links 1
The base end portions of 2 and 13 are rotatably pivoted up and down.
An arm 14 is pivotally attached to the tip ends of the second links 12 and 13 in a vertically rotatable manner to form a parallel link.
The apparatus A according to the present invention is hung and connected to the apparatus 4, and the parallel link is vertically rotated by an air cylinder (not shown), and the pressure of the air cylinder becomes a pressure commensurate with the weight acting on the arm 14 and the arm 14 is constantly operated. Stop and arm 1
When an upward force is applied to 4, the air cylinder extends and the arm 14 swings upward, and when a downward force is applied, the air cylinder contracts and the arm 14 swings downward. For example, it is configured as shown in Japanese Utility Model Publication No. 2-6060. A panel mounting portion 15 is provided near the front portion of the carriage 10 and a plurality of floor panels B are stacked and mounted.

As shown in FIGS. 6 and 7, the device A includes a main body 21 having a tubular shape and provided with a handle 20.
1 is suspended and connected to the tip of the arm 14 via a ball joint 22, and four brackets 23 are radially fixed to the main body 21. Each of the brackets 23 has a tubular first cross member 24. The vertical axis 25 is swingably connected in the horizontal plane direction. The lower end of the vertical axis 25 is screwed into a nut 26 fixed to the bracket 23, and a handle 27 is provided. By rotating the handle 27, First cross member 2
4 can be fixed to the main body 21 or can be rocked to form a rocking fixing mechanism 28.

The first cross member 24 has a cylindrical second cross member 29.
Constitute a stretchable horizontal member 30 which is slidably fitted and expandable, and a shaft 32 is inserted into a longitudinal long groove 31 formed in the second horizontal member 29. The shaft 32 is the first horizontal member 24. A handle 34 is provided which is screwed to a nut 33 fixed to the second cross member 29. By rotating the shaft 32 by the handle 34, the second cross member 29 can be fixed to the first cross member 24 and slidable. The fixing mechanism 35 is configured.

The mounting bracket 3 is attached to the second cross member 29.
6, the bolt rotating mechanism 40 is attached to the mounting bracket 36, and the bolt rotating mechanism 40 includes a tubular body 41 as shown in FIG. This hollow shaft 4 is rotatably supported.
The plate 44 is provided on the upper part of 2, and the upper spline portion 47 of the driver 46 is spline-fitted into the lower spline hole 45 of the hollow shaft 42, and is fitted into the guide hole 48 drilled in the upper axial center of the driver 46. Guide rod 4
9 is fixed to the plate 44, the hollow shaft 42 is slidable up and down, and a spring 50 provided between the hollow shaft 42 and the plate 44 is urged downward.

A motor 52 is attached to the upper part of the cylindrical body 41 via a speed reducer 51, and a rotary shaft 53 of the speed reducer 51.
Is connected to the upper portion of the hollow shaft 42 to drive the motor 52 in the forward and reverse directions so that the driver 46 is rotated in the forward and reverse directions.

A bracket 53 is fixedly attached to the lower surfaces of the tips of the three first horizontal members 24, and a sensor mounting member 54 is rotatably supported by the bracket 53 via a bracket 55 and a horizontal shaft 56. The horizontal axis 56 is a bracket 55
A handle 58 is provided so as to be screwed into a nut 57 fixed to the sensor mounting member 54. By rotating the handle 58, the sensor mounting member 54 can be rotated and fixed, and a vertical rotation fixing mechanism 59 is configured. The floor panel height sensor 60 is attached to the tip of the sensor attachment member 54, and the positioning piece 61 is attached downward to the bottom surface of the sensor attachment member 54. It is a linear displacement sensor that is free and is provided with a protruding bias and outputs a signal proportional to the pushing stroke.

A panel suction member 65, such as a vacuum pad, is hung on the main body 21 via a ball joint 64 to suck and support the floor panel B.

The detection signals of the three floor panel height sensors 60 are input to the controller 70 as shown in FIG.
The controller 70 performs comparison calculation and outputs a drive signal to each motor 52.

As shown in FIGS. 6 and 7, the floor panel B has a rectangular plate shape, and inserts 71 are embedded near each corner, and screw holes 72 of the insert 71 are opened in the upper and lower surfaces to adjust the height. A bolt 73 for use is screwed, and a rubber contact piece 74 is fixed to the lower surface of the bolt 73.

Next, the operation of laying the floor panel B on the concrete floor C will be described. As shown in FIG. 2, as in the conventional case, a floor panel is manually laid on the corner portion manually along the marking line, and the reference floor panel B1 is shown as a phantom line in FIG.
And

The trolley 10 is moved to the vicinity of the reference floor panel B1, the operator pivots the arm 14 up and down to move the device A onto the floor panel B placed on the trolley 10, and the swing fixing mechanism 28 is used. After the sliding fixing mechanism 35 is released, while observing each driver 46, the elastic cross member 30 is swung and the second cross member 29 is moved in and out to align the driver 46 with the insert 71 of the floor panel B. A is moved downward to fit each driver 46 into the insert 71, and in this state, the swing fixing mechanism 28 and the slide fixing mechanism 35 are fixed to fix the expansion / contraction horizontal member 30 so as not to swing. The cross member 29 is fixed so as not to slide so that each driver 46 is located at a position matching the insert 71 of the floor panel B.

That is, since the floor panel B has various sizes and the relative positions of the inserts 71 are different, each driver 46 is first positioned so as to match the insert 71 of the floor panel B as described above. This makes it possible to accommodate floor panels B of various sizes. In the above operation, the sensor mounting member 54 is fixed at the upper rotation position and the positioning piece 61 is set at the upper position.

When each driver 71 is fitted into each insert 71 as described above, the floor panel B is attached by the panel suction member 65.
7, the apparatus A is moved upward to lift one floor panel B, and a bolt 73 for height adjustment is attached to the floor panel B from below in the screw hole 72 of the insert 71 as shown in FIG. It is screwed into contact with the driver 46. That is, as shown in FIG. 8, when the driver 46 is fitted into the insert 71, the lower end surface of the spline portion 45 contacts the upper surface of the insert 71 and the tip end surface of the driver 46 is positioned slightly above the lower end surface of the insert 71.

The vertical rotation fixing mechanism 59 is released to rotate the sensor mounting member 54 downward, the positioning piece 61 is brought into contact with the upper surface of the floor panel B, and the vertical rotation fixing mechanism 59 is fixed to fix the sensor mounting member 54. Fixed in that position. This allows
The contact 63 of the floor panel height sensor 60 projects outward from the floor panel B that is suction-supported, and projects below the upper surface of the floor panel B.

The apparatus B is moved to arrange the panel B, which is sucked and supported, so as to be aligned with the two reference floor panels B1 as shown in FIG. As a result, the contacts 63 of the three floor panel height sensors 60 come into contact with the upper surface of the reference floor panel B1 as shown in FIGS. 6 and 7, and the abutment pieces 74 of the bolts 72 come into contact with the concrete floor C and bolts. The upper recess of 73 and the tip of the driver 46 engage.

After that, the floor panel automatic height adjusting operation is performed, which will be described below. Floor panel height sensor 60
The controller 70 outputs a reverse rotation signal to the motor 52 of the bolt rotation mechanism 40 not adjacent to each other, that is, the motor 52 of the bolt rotation mechanism 40 at the lower right of FIG. 6 that does not face the reference floor panel B1. As a result, the driver 46 rotates in the reverse direction and the bolt 73 is screwed into the screw hole 72 of the insert 71 and moves upward. Therefore, when the driver 46 moves upward against the spring 50, the bolt 73 abuts. The piece 74 is separated from the concrete floor C.

From the output signal of the floor panel height sensor 60 located on the uppermost right side in FIG. 6, the controller 70 determines that the upper right side of the floor panel B in FIG. 6 is higher than the reference floor panel B1. A reverse rotation signal is output to the motor 52 of the bolt rotating mechanism 40 located at the uppermost right, and the bolt 73 is moved upward as described above.

As a result, the upper right portion of the floor panel B in FIG. 6 moves downward, the contact 63 of the floor panel height sensor 60 is pushed in, and its output signal changes sequentially, and the output signal is stored in the controller 70. When the above value is reached, a signal for stopping the motor 52 is output to stop the driver 46 so that the upper right side of the floor panel B in FIG. 6 is made flush with the upper surface of the reference floor panel B1.

That is, the contact 63 of the floor panel height sensor 60 projects from the upper surface of the floor panel B, and the projecting length thereof is always fixed by the positioning piece 61. Remember
If the pushing stroke of the contactor 63 when the floor panel B is moved downward as described above matches the stored value, the upper surface of the floor panel B and the upper surface of the reference floor panel B1 become the same.

Next, the bolt rotation mechanism 4 on the upper left side is detected by the detection signal of the floor panel height sensor 60 on the upper left side shown in FIG.
The motor 52 of 0 is driven and controlled in the same manner as described above, and the upper left upper surface of the floor panel B shown in FIG. 6 is made flush with the upper surface of the reference panel B1.

Next, the left lower bolt rotating mechanism 40 is detected by the detection signal of the floor panel height sensor 60 located lower left in FIG.
The motor 52 is driven and controlled in the same manner as described above, and the upper left lower surface of the floor panel shown in FIG. 6 is made flush with the upper surface of the reference panel B1.

When the height of the floor panel B is adjusted as described above, an error occurs. Therefore, the above-mentioned operation is repeated again so that the height of the floor panel B is correctly matched with the upper surface of the reference panel B1.

Finally, a normal rotation signal is output to the motor 52 of the bolt rotating mechanism 40 in the lower right portion shown in FIG.
6 is rotated in the forward direction to move the bolt 73 downward so that the contact piece 74
To the concrete floor C. This allows the motor 52
Since the rotational load (torque) of the floor panel B becomes large, the torque change is detected by the controller 70 and the motor 52 is stopped by the torque detector (not shown). 74 contacts the concrete floor C.

The entire apparatus A is moved upward and turned, positioned on the floor panel B mounted on the carriage 10, and the floor panel B is adsorbed and supported in the same manner as described above to perform the same operation as described above. The panel B is laid on the concrete floor C in sequence. At this time, the floor panel B already laid serves as one reference panel.

In the above embodiment, the device A is hung on the arm 14 of the work vehicle a, but it may be hung on a member that vertically or swivels of another work vehicle, or may be hung by a crane. The operator may carry it by hand.

[0033]

The floor panel B is suction-supported by the panel suction member 65, and the driver 46 of the bolt rotating mechanism 40 is also used.
Is engaged with a bolt 73 screwed to the floor panel B, and the floor panel B sucked and supported in this state is arranged in accordance with the reference panel, whereby the bolt rotation mechanism is detected by the detection signal from the floor panel height sensor 60. The floor panel B can be laid at the same height as the reference floor panel by controlling the rotation of the driver 46 of 40, and the worker only has to perform the suction support work and the placement work of the floor panel, which makes the troublesome bolt height adjustment work. Since it is not necessary, floor panels can be laid on a concrete floor on a flat surface with no steps by a simple operation.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an example of a floor structure.

FIG. 2 is an explanatory diagram of a conventional floor panel laying work.

FIG. 3 is an explanatory diagram of a conventional floor panel laying work.

FIG. 4 is an overall front view showing an embodiment of the present invention.

FIG. 5 is an overall plan view showing an embodiment of the present invention.

FIG. 6 is a partially cutaway plan view of the device of the present invention.

7 is a cross-sectional view taken along the line DD of FIG.

FIG. 8 is a sectional view of a bolt rotating mechanism.

FIG. 9 is a control circuit diagram of a motor.

[Explanation of symbols]

21 ... Main body, 24 ... First horizontal member, 29 ... Second horizontal member, 30 ...
Expansion / contraction horizontal member, 40 ... bolt rotating mechanism, 46 ... driver,
52 ... Motor, 54 ... Sensor mounting material, 60 ... Floor panel height sensor, 61 ... Positioning piece, 62 ... Main body, 63 ... Contact, 65 ... Panel suction member, 70 ... Controller, 71
... inserts, 72 ... screw holes, 73 ... bolts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Yamaguchi 821-11 Nesakama, Hiratsuka-shi, Kanagawa Komatsu Engineering Co., Ltd. Hiratsuka Office (72) Inventor Saburo Aida 2-7-6 Shimosato, Higashi-Kurume, Tokyo ( 72) Inventor Shinji Takasugi 1200 Manda, Hiratsuka, Kanagawa Prefecture Komatsu Ltd. Research Laboratory

Claims (6)

[Claims] 1. A plurality of bolt rotation mechanisms 4 each having a main body 21 and a screwdriver 46 that can be engaged with and disengaged from a height adjusting bolt 73 mounted on the main body 21 and screwed to a floor panel B.
0, a plurality of floor panel height sensors 60 attached to the bolt rotation mechanism 40, a panel suction member 65 attached to the main body 21, and a bolt rotation mechanism 40 based on detection signals of the floor panel height sensor 60. 2. A floor panel laying device comprising a controller 70 for controlling rotation of the driver 46 of FIG. 2. The bolt rotating mechanism 40, a motor 52,
2. The floor panel according to claim 1, further comprising a screwdriver screwed to the insert 71 of the floor panel B, and a driver 46 which can be engaged with and disengaged from the floor panel B, can be rotated by the motor 52, can be moved up and down, and can be biased downward by a spring 50. Laying equipment. 3. A first cross member 24 is attached to the main body 21 so as to be horizontally swingable and fixed, and
The floor according to claim 1 or 2, wherein a second transverse member 29 is slidably and fixedly attached to the transverse member 24 to form a stretchable transverse member 30, and a bolt rotating mechanism 40 is attached to the second transverse member 29. Panel laying device. 4. The floor panel height sensor 60 includes a body 6
2. The floor panel laying device according to claim 1, wherein the contactor 63 is retractable from and retractable with respect to the second member 2 and is biased so as to project, and a signal corresponding to a pushing stroke of the contactor 63 is output. 5. A sensor mounting member 54 is attached to the first horizontal member 24 of the elastic horizontal member 30 so as to be vertically rotatable and fixed.
A positioning piece 61 and a floor panel height sensor 60 are attached to the sensor mounting member 54 so that when the positioning piece 61 is in contact with the upper surface of the floor panel B sucked and supported, the contact 63 projects downward from the upper surface. Item 4. The floor panel laying device according to item 4. 6. The controller 70 includes a floor panel B on which a contact 63 of the floor panel height sensor 60 is suction-supported.
6. A function of storing the length of protrusion of the upper surface of the contactor 63 and outputting a stop signal to the motor 52 when the pushing stroke of the contactor 63 reaches a value corresponding to the protrusion length. Floor panel laying equipment.