JPH07107484B2 - Prop height adjuster - Google Patents

Description

TECHNICAL FIELD The present invention relates to a strut height adjusting device, and more specifically, to a strut height of a strut member that supports a floor panel constituting a double floor at a predetermined height. It relates to an adjusting device.

[Conventional technology]

With the development of office automation (OA) equipment, various or numerous electric or electronic equipments are used in offices, etc., and along with this, many power outlets and cable connectors for connecting equipment are required. It has become. Therefore, it is often the case that the floor of an office or the like has a double structure, and a connection cord is laid between them to expose the outlets and cable connectors on the floor near the installed equipment. ing.

Such a double structure floor is constructed by laying a plurality of floor panels on a base at a predetermined height. These floor panels have a side of 30 to 50 cm and a thickness of 15 to 50 cm.
GR with a 50mm quadrilateral and reinforced with glass fiber
It is composed of a panel base material called C, which is made of concrete or silicate calcium, a back plate material made of steel plate located on the back surface of the panel base material, and a surface material such as carpet tile or vinyl chloride tile. Each floor panel is supported by a column that supports the corner portion at a predetermined height together with the corner portions of the adjacent floor panels. A thread is cut on the outer circumference of the column, and a support material such as a nut whose central part is screwed to this screw is provided.The support material is rotated to adjust its height, and all support materials are at the same level. After positioning, fit the pedestal to the column so that the lower end comes into contact with the support material, and place the corner of the floor panel together with the corner of the adjacent floor panel on the pedestal to obtain the desired level. The floor panels are spread over.

As another construction method, a notch is formed in advance at the corner of each floor panel so that about one-fourth of the columns are inserted, and a nut is preliminarily set so that the screw hole is located in the notch. Fix it and put it on the base after passing the nut through the strut, and place the floor panel without nuts on the floor panel adjacent to such a floor panel with nuts, the support is the floor panel with nuts There is a method of adjusting the top and bottom of the nut by rotating the strut so that the same nut is shared. This construction method has an advantage that even after the floor panels are spread, the jigs such as a screwdriver are inserted through the notches at the corners of the floor panel and the support columns are rotated to adjust the level. The diameter of the pillars is about 10 mm at the maximum, and the carpet or vinyl chloride tile surface decorative material is stretched over the spread floor panels, so these pillar openings will be covered with surface decorative material. .

Even in the method of constructing the two floor panels as described above, the procedure is to strike black ink on the base with a mesh (usually 450 to 500 mm mesh) that matches the size of the floor panel, and install stanchions at the intersections of these black ink. . Then, it is necessary to align the heights of all the columns, that is, the heights of the support members, on the same plane.

In the conventional construction of such floor panels, in order to make the height of the support columns uniform, the standard support columns are set every 10 to 20 and the height of these support materials is called the surveying level and Starf. By adjusting with a bar with a scale, by stretching a water thread between the support materials of this reference strut and adjusting the support material of the remaining props located between the reference strut to the same height as that of the reference strut, The method of aligning the height of all floor panels on the same plane is adopted.

[Problems to be Solved by the Invention]

In such a conventional construction method, at least two people are required to adjust the height by the level and the starf, and moreover, it requires skill, and it is necessary to bend down while working to cause back pain. There were problems such as being present, and a solution was desired.

On the other hand, in the field of construction, as a device that automatically sets the level during construction, when a desired level is set, a laser transmission unit that transmits laser light to that level and a laser transmission unit that receives laser light from this laser transmission unit An automatic leveling device that outputs different signals depending on the position above and below the receiving position and displays the level difference is, for example, from Spectra Physics, Inc. in the United States, under the trade name "Electronic Level EL-1" (hereinafter, EL -1) and "Level Eye 1077" (hereinafter referred to as Level Eye). With this automatic leveling device, the EL-1 is fixed to a tripod, set to the desired level, and the level eye is attached to the side of the member to be adjusted. Can be set to the desired level by changing the level of the member to be adjusted until the signal is received in the optimum state, and the laser light from EL-1 is transmitted while rotating in the horizontal direction, so level adjustment is required. Even if the points are dispersed
It is not necessary to move this after setting EL-1
Since only the level eye needs to be moved, there is an advantage that only one worker is required.

Therefore, the present invention can automatically align the heights of the columns set on the base on the same plane by using the technology of the above-mentioned automatic leveling device, and can be operated by one person without bending over. It is an object of the present invention to provide a height adjusting device that can be used.

[Means for Solving the Problems]

In order to achieve the above object, the invention of claim 1 adjusts the height position of each nut screwed to a plurality of bolt supports arranged on a base on the same plane. In, including a laser oscillator for irradiating a laser beam of a reference height level, and a height adjuster mounted on the nut, the height adjuster is detachably engaged with the nut. A rotary shaft having an insertion hole, a motor for driving the rotary shaft, a height position detection unit that receives the laser light and detects a deviation from the reference height level, and an output of the same height position detection unit A motor control unit for controlling the motor based on the above, and the height position is adjusted along the reference height level in a state where the height adjuster is placed on the nut. It is characterized by doing

Further, in the invention of claim 2, a plurality of bolt struts are arranged on the base at predetermined intervals, and the floor panel is placed at a predetermined height position on the base via nuts screwed to the respective bolt struts. In a prop height adjusting device for adjusting the height level of the laid floor surface, a laser transmitter for irradiating a laser beam of a reference height level and a height adjusting device mounted on the floor surface are provided. The height adjuster includes a rotary shaft having a driver shaft for removably engaging the bolt strut to rotate the bolt strut, and a coaxial shaft around the rotary shaft via bearing means. A sleeve that is fitted and holds the rotary shaft substantially perpendicular to the floor surface, a motor that drives the rotary shaft, and a height that receives the laser light and detects a deviation from the reference height level. The position detector and the same height position detector A motor control unit for controlling the motor based on the above, and in a state in which the floor panel is laid, the driver shaft of the rotating shaft is engaged with each of the bolt columns to form the bolt columns. By rotating and adjusting the height of the nut relatively,
The height level of the floor surface is adjusted along the reference height level.

〔Example〕

An embodiment of the present invention shown in the drawings will be described below. FIG. 1 is a schematic view of a first embodiment of the present invention, that is, a column height adjusting device used when a pedestal is provided on a column and a floor panel is supported on the pedestal. A support leg 2 such as a tripod is erected on a base 1, a laser light transmitter 3 installed on the support leg 2, and the laser light transmitter 3
The column height adjusting device 4 has a function of receiving a laser beam emitted from the column and adjusting the height of the column to be constant.

As the laser light transmitter 3, for example, the laser level EL-1 type manufactured by Spectra Physics, Inc. described above is used. The laser light emitted from this EL-1 rotates horizontally, but it is automatically adjusted so that it is parallel to the virtual reference plane on the base 1 at the initial rotation, and after that, it always emits the laser light parallel to the virtual reference plane. To do.

The column height adjuster 4 includes a receiving unit 5 for receiving a laser beam, a rotating unit 6 for rotating a nut 22 on a floor panel bolt column 21, a motor 7 for driving the rotating unit 6, and a signal from the receiving unit 5. To control the rotation of the motor 7, a handle 9 for holding the support height adjusting device 4 vertically, and a level 10 that serves as a pointer for holding the support height adjusting device 4 vertically. And have.

As the receiving unit 5, for example, the level eye 1077 type manufactured by Spectra Physics, Inc. described above is used. This level
The eye detects the height of the received laser light and the signal sound becomes higher as it approaches the predetermined level, and the level difference is indicated by the bar mark displayed on the display part. To use. That is, the second
As shown in the figure, the receiving unit 5 includes, for example, a position detecting element 11 (PS
When the position detecting element 11 which has D) and is located in the center thereof receives the laser beam, it outputs a coincidence signal. The control unit 8 is composed of a position detection circuit 12 that processes a signal from the position detection element 11 and changes it into position information, and a motor control circuit 13 and a motor drive circuit 14 that control the motor 7 according to the position information. Has been done. The position detection circuit 12 identifies the position of the position detection element 11 that has received the light and sends information such as the height difference from the virtual reference plane to the motor control circuit 13. Motor control circuit
Reference numeral 13 sets the normal rotation or the reverse rotation of the motor 7 according to the height information from the position detection circuit 12, and when the difference from the target is large, the rotation of the motor 7 is made high speed and within a certain range from the target. When approaching, a control signal to rotate at a low speed is issued, and when it matches the target, transmission of the control signal is stopped. The motor drive circuit 14 drives the motor 7 in accordance with a control signal from the motor control circuit 13 so that the virtual reference plane and the center of the position detection element 11 of the receiver 5 coincide with each other. In the level eye used in this embodiment, the position detection element 11 has a detection range of ± 25 mm, which is sufficient for normal use. However, assuming that the automatic adjustment cannot be performed outside this range, the motor drive circuit 14 Is a manual operation circuit 15 that drives the motor 7 manually.
Are connected.

FIG. 3 is a diagram showing in detail the portion of the rotating portion 6, and the upper end of the rotating portion 6 is coaxially attached to the drive shaft 16 of the motor 7. A collar portion 17 having a diameter longer than that of the rotating portion 6 is integrally formed at the lower end portion of the rotating portion 6, and a nut insertion hole 18 matching the shape of the nut 22 is formed on the lower surface of the collar portion 17. Is provided so as to open. At the center of the lower end of the rotating portion 6, an opening 19 having a length in the axial direction sufficient to allow the bolt support 21 to loosely fit through the nut insertion hole 18 is formed.

Next, a construction method for laying a plurality of floor panels (not shown) on the base 1 by the above-described support height adjusting device will be described. Black ink is struck on the base 1 with a mesh that matches the size of the floor panel, and bolt posts 21 are installed at the intersections of these black inks. The laser light transmitter 3 attached to the tripod 2 is installed on the base 1 at an arbitrary position. That is, the level of the laser light emitted from the laser light transmitter 3 becomes a virtual level plane.

Next, while the nut 22 of the bolt strut 21 is fitted into the nut insertion hole 18 of the rotating portion 6 of the strut height adjuster 4, the handle 9 is held in the hand and the strut height adjuster 4 is erected vertically. The vertical state can be adjusted by the level passage 10 provided on the upper end surface of the column height adjuster 4. Here, when the position detecting element 11 receives the laser hole, the position detecting circuit 12 identifies which position of the position detecting element 11 has received, and the motor control circuit 13 recognizes information such as the height difference from the virtual level plane. Send to. The motor control circuit 13 instructs the motor drive circuit 14 to perform normal rotation or reverse rotation according to the information. When the motor 7 is rotated by the motor drive circuit 14, the rotating portion 6 also rotates, and for example, in the case of normal rotation, the nut 22
Raises the bolt support 21, and in case of reverse rotation, the nut 22 lowers. As the rotation of the motor 7 causes the column height adjuster 4 to move up and down as the nut 22 moves up and down, it is detected that the position detecting element 11 located in the center of the position detecting elements 11 receives the laser beam. When the circuit 12 identifies, the position detection circuit 12 instructs the motor control circuit 13 to stop the motor 7.
As a result, the rotation of the motor 7 is stopped and the nut 22 is locked at a predetermined position of the bolt support 21. By performing such an operation on all installed bolt columns 21, all nuts 22 are located on the same plane. A pedestal (not shown) for supporting the floor panel is attached to each bolt strut 21 set to the same level in this way, and the lower end thereof is a nut 22.
If it is installed so as to abut, the upper surface of each pedestal will be at the same level, and the surface of the floor panel placed on it will also be at the same level. When the nut 22 is located outside the detection range of the position detection element 11, the manual operation circuit 15 is operated to manually control the drive of the motor 7 to move the nut 22 within the detection range. The automatic leveling as described above may be performed.

FIG. 4 shows a second embodiment of the present invention in which the level is adjusted by inserting a jig such as a driver from the cutouts at the corners of each floor panel and rotating the support after the floor panels are spread. The example of the rotating part used for is shown. That is, the drive shaft 16 of the motor 7 is coaxially mounted with the rotary shaft 32 having the driver shaft 31 mounted at the lower end. An insertion hole 33 into which the upper end of the driver shaft 31 is loosely fitted is formed at the lower end of the rotary shaft 32, and the driver shaft 31 is inserted in the insertion hole 33.
There is a spring 34 that elastically presses downward. The driver shaft 31 is, for example, press-fitted into the insertion hole 33 so as to be detachably inserted without dropping out, and is connected to the rotary shaft 32 by a key groove (not shown) so as to rotate in association with the rotation of the rotary shaft 32. ing. A step portion 35 is formed in the axial direction on the upper outer peripheral surface of the rotary shaft 32, and a sleeve 36 is loosely fitted to the rotary shaft 32 below the step portion 35. A bearing 37 is interposed between the upper end of the sleeve 36 and the step portion 35, and a flange portion 38 that extends substantially horizontally outward is integrally formed at the lower end of the sleeve 36. Reference numeral 41 is a bolt support, and a thread 42 is cut from the lower part to the upper end, and a nut 44 for supporting and fixing the corner portion of the floor panel 43 is screwed to the upper surface of the bolt support 41. The upper end of the bolt support column 41 extends from the notch 45 formed at the corner of each floor panel 43 to the floor panel.
It is capable of projecting in 43 directions, and the tip end of the driver shaft 31 is fitted into the tip end surface thereof to form a plus or minus groove 46. The lower end surface of the bolt post 41 is rounded so that it can be easily rotated on the base 1.

If you use this rotating part to adjust the level,
The lower end of the driver shaft 31 is inserted from above the notch portion 45 and fitted into the groove 46 of the bolt support column 41. At this time, the flange portion 38 of the sleeve 36 contacts the upper surface of the floor panel 43. In this state, similar to the first embodiment described above, when there is a deviation between the virtual reference plane by the laser light emitted from the laser light transmitter 2 and the position received by the position detection element 11 of the column height adjuster 3. In this case, the motor 8 is driven so that the virtual reference plane and the center of the receiving section 5 coincide with each other. The rotation of the motor 8 is the drive shaft
16 and transmitted to the driver shaft 31 via the rotary shaft 32, and the bolt support column 41 rotates. Part of the nut 44 is the floor panel
Since it is fixed to 43, it does not rotate but moves the bolt support column 41 up and down. Therefore, the level of the floor panel 43 can be adjusted to be constant. On the other hand, since the sleeve 36 is attached to the rotary shaft 32 via the bearing 37, the sleeve 36 does not rotate.

In the above-described embodiment, the drive shaft 16 of the motor 8 has the rotating portion 6
Alternatively, the rotary shaft 32 is fixed to the rotary shaft 32, but if it is configured to be detachable by tightening nuts or the like, the rotary part 6 or the rotary shaft 32 can be replaced, and can be used for the above-mentioned two construction methods. Further, in this case, if a plurality of rotating parts 6 or rotating shafts 32 having different axial lengths are prepared, it is possible to freely set the shape of the support column, the target height, and the difference in the operator. Its shape and length can be changed.

〔The invention's effect〕

As described above, according to the present invention, the following effects can be obtained. That is, according to the invention as set forth in claim 1, by mounting the height adjuster on the nuts screwed to the respective bolt struts, it is possible for one worker to bend without bending down. It is possible to automatically align the height positions of the nuts supporting the floor panel on the same plane.

Further, according to the invention described in claim 2, in a state in which the floor panel that constitutes the double floor has already been laid, as in the invention described in claim 1, one worker and a waist The floor level can be automatically aligned on the same plane without bending down.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the outline of the constitution in one embodiment of a column height adjusting device for carrying out the present invention, FIG. 2 is a block diagram showing the constitution of its receiving portion and control portion, FIG. FIG. 4 is a longitudinal sectional view showing the rotating part in detail, and FIG. 4 is a partially cut front view showing another embodiment of the rotating part. In the drawings, 1 is a substrate, 3 is a laser light transmitter, 4 is a post height adjuster, 5 is a receiving unit, 6 is a rotating unit, 7 is a motor, 8 is a control unit, 11 is a position detecting element, and 12 is a position. Detection circuit, 13 is a motor control circuit, 14 is a motor drive circuit, 17 is a collar portion, 18 is a nut insertion hole, 21 and 41 are bolt columns, and 22 and 44 are
Is a nut, 31 is a driver shaft, 32 is a rotary shaft, 33 is an insertion hole,
36 is a sleeve and 45 is a notch.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Uene 13 sets of Nabeyama, Naka City, Fukuoka Prefecture (72) Inventor Shinka Horiuchi 3 sets of Meio Chuo, Iizuka City, Fukuoka Prefecture (56) Reference JP-A-49-8984 ( JP, A) JP 59-153111 (JP, A)

Claims (2)

[Claims] 1. A column height adjusting device for adjusting the height position of each nut screwed to a plurality of bolt columns arranged on a base on the same plane, wherein a laser beam of a standard height level is used. And a height adjuster mounted on the nut, wherein the height adjuster includes a rotary shaft having an insertion hole that is detachably engaged with the nut, A motor that drives a rotating shaft, a height position detection unit that receives the laser light and detects a deviation from the reference height level, and a motor that controls the motor based on the output of the height position detection unit A controller is provided, and the height position is adjusted along the reference height level when the height adjuster is placed on the nut. Prop height adjustment device. 2. A plurality of bolt struts are arranged on the base at predetermined intervals, and a floor panel is laid on the base at a predetermined height position via a nut screwed to each bolt stanchion. In a prop height adjusting device for adjusting the height level of the floor surface, including a laser transmitter for irradiating a laser beam of a reference height level, and a height adjusting device mounted on the floor surface, The rotary adjuster includes a rotary shaft having a driver shaft that removably engages with the bolt post to rotate the bolt post, and is coaxially loosely fitted around the rotary shaft via a bearing means. A sleeve that holds the rotary shaft substantially perpendicularly to the floor surface, a motor that drives the rotary shaft, and a height position detection unit that receives the laser light and detects a deviation from the reference height level. , Based on the output of the same height position detector A motor control unit for controlling the motor is provided, and in a state where the floor panel is laid, the driver shaft of the rotating shaft is engaged with each of the bolt columns to rotate the bolt columns, A prop height adjusting device characterized in that the height level of the floor surface is adjusted along the reference height level by relatively adjusting the height of the nut.