JP6585100B2 - Support leg level setter - Google Patents

Description

  The present invention relates to a support leg level setting device for setting the height position of a support leg used for a free access floor.

  The support legs used for the free access floor are erected on the floor surface formed of concrete material or the like, and support a plurality of floor panels with a space above the floor surface (for example, patents) Reference 1).

  FIGS. 12 to 16 are views referred to for explaining a conventional method for adjusting the height of the support leg 2 of the free access floor 6.

  As shown in FIG. 12, the support leg 2 has a panel support base 14 that abuts each corner of the plurality of floor panels 4 and supports them from below, and a panel support base 14 that stands on the floor 3. It was comprised including the leg part 16 which supports.

  As shown in FIG. 13, the panel support 14 includes a column portion 17 extending in the height direction (vertical direction in the drawing) and a horizontal plate-shaped support portion 18 disposed in the middle of the column portion 17 in the height direction. Had.

  As shown in FIGS. 13 and 14, the column portion 17 is formed in a substantially cylindrical shape, and a female screw portion 17 a is formed over the entire inner peripheral surface of the shaft hole penetrating in the axial direction. Further, the support column portion 17 is composed of an upper cylindrical portion 17 b formed above the support portion 18 and a lower cylindrical portion 17 c formed below the support portion 18.

  Then, the female thread portion 17a of the lower cylindrical portion 17c is screwed to a male screw portion 16a formed on the outer peripheral portion of the leg portion 16, and the panel support base 14 is rotated relative to the leg portion 16 to thereby provide a panel support base. The height position from the floor surface 3 of 14 was adjusted.

  As shown in FIGS. 13 and 14, the support portion 18 is formed so as to extend outward from the outer peripheral surface of the support column portion 17 in the horizontal direction, and the planar shape thereof is formed in a substantially annular shape (see FIG. 14). Then, any one of the four corners of the bottom surface 4a (see FIG. 12) of the floor panel 4 was placed on the upper surface (support surface 18a) of the support portion 18.

  Further, as shown in FIGS. 13 and 14, the panel support base 14 is supported so as to fill a corner between the support surface 18 a of the support portion 18 and the outer peripheral surface of the upper cylindrical portion 17 b of the support column 17. Four plate-like protrusions 19 projecting upward from the surface 18a were formed.

  Further, the four protrusions 19 are formed so as to extend radially outward from the outer peripheral surface of the upper cylindrical portion 17b of the support column portion 17 with an interval of approximately 90 degrees (see FIG. 14). Further, the formation of the protrusions 19 prevents the floor panel 4 from being laterally displaced.

  Further, as shown in FIG. 13, a female screw hole 17 d extending in the left-right direction in the drawing is formed in the lower cylindrical portion 17 c of the panel support base 14. The panel support 14 was fixed at a desired height position from the floor 3 by fastening the male screw member 7 to the female screw hole 17d.

  Then, as shown in FIG. 12, the stepped portions 4b formed at the four corners of the floor panel 4 by tightening the male threaded portion 20b of the countersunk bolt 20 to the female threaded portion 17a of the upper cylindrical portion 17b of the panel support base 14, respectively. However, it was pressed down and fixed by the head 20a of the flat head bolt 20.

  In order to install the free access floor 6 flat, it is necessary to set the height position of the support surface 18a (see FIG. 13) of the panel support 14 of the support leg 2 to a predetermined height. 3 had a portion on which an inclined surface and an uneven surface were formed.

  For this reason, when constructing the free access floor 6, as shown in FIG. 15, a laser generator 21 that irradiates the laser 22 horizontally is arranged, and the laser 22 irradiated from the laser generator 21 is used. Thus, the height position of the support surface 18a of the support leg 2 has been adjusted.

  Specifically, first, as shown in FIG. 15, the distance L <b> 1 from the height position of the level reference ink struck on the wall surface 5 to the height position of the laser 22 was measured. Further, the distance L2 from the height position of the level reference black to the height position of the support surface 18a (see FIG. 13) of the panel support base 14 to be set is calculated.

  Then, by calculating the difference between the calculated distance L2 and the measured distance L1, the distance from the height position of the laser 22 to the height position of the support surface 18a (see FIG. 13) of the panel support 14 to be set. L3 was calculated.

  Thereafter, the operator stands the metal scale 26 vertically on the support surface 18a of the panel support base 14 (see FIG. 16), and visually confirms the scale of the metal scale 26 irradiated with the laser 22, while the panel support base 14 is rotated relative to the leg 16 to move the height position of the support surface 18a.

  And as shown in FIG. 16, the scale of the metal scale 26 irradiated with the laser 22 is a value of the distance L3 from the height position of the laser 22 to the height position of the support surface 18a of the panel support base 14 to be set. , The height position of the support surface 18a of the panel support 14 is set to the target height by stopping the relative rotation of the panel support 14 with respect to the leg 16.

JP 2008-2126 A

  However, as described above, the metal support 26 is set up vertically on the support surface 18a of the panel support base 14, and the scale of the metal scale 26 irradiated with the laser 22 is visually checked, while the panel support base 14 is attached to the leg portion. Repeating the work of rotating relative to 16 has a problem that the work efficiency is poor and the load on the body of the worker who repeatedly bends and stands is large.

  Therefore, in view of the above problems, the present invention provides a support leg level setting device capable of improving the work efficiency of setting the level of the support legs and preventing an excessive load on the operator. It is an object to do.

In order to solve the above problems, a support leg level setting device according to the present invention includes:
Engage with the upper cylindrical part and the plate-like protrusion on the upper surface side of the disk-like support part of the panel support base of the support leg that supports the floor panel of the free access floor, and transmit the rotation to the panel support base. A disc-shaped engaging member that is driven to rotate by a driving means via a coupling member;
E Bei the light receiving portion to stop the rotation of the engagement member when receiving the laser,
The coupling member includes an upper bar-shaped portion whose upper end portion is coupled to the driving means, at least two lower bar-shaped portions whose lower end portions are fixed to the engagement member, a lower end portion of the upper bar-shaped portion, and the It has a branching bar-like part formed between the upper ends of the lower bar-like part .

Further, the support leg level setting device according to the present invention is:
The engaging member is detachably coupled.

Further, the support leg level setting device according to the present invention is:
A motor for rotating the engaging member is provided.

Further, the support leg level setting device according to the present invention is:
A first switch that directly switches the start and stop of the operation of the motor by hand is provided.

Further, the support leg level setting device according to the present invention is:
When the engagement member is placed on the support surface of the panel support base, the motor starts to operate, and when the engagement member moves away from the support surface of the panel support base, A second switch for stopping the operation is provided.

Further, the support leg level setting device according to the present invention is:
A third switch that switches directly by hand,
When the engaging member is placed on the support surface of the panel support, the switch is turned on, and when the engagement member is separated from the support surface of the panel support, the switch is turned off. A fourth switch,
The motor operates only when both the third switch and the fourth switch are in a switch-on state.

Further, the support leg level setting device according to the present invention is:
The distance from the lower surface of the engaging member to the light receiving portion can be adjusted.

Further, the support leg level setting device according to the present invention is:
The light receiving section is arranged on a central axis of the support leg level setting device.

Further, the support leg level setting device according to the present invention is:
An inclination detector for detecting an inclination of the support leg level setter with respect to the horizontal direction is provided.

Further, the support leg level setting device according to the present invention is:
An audio output unit that outputs a sound corresponding to the inclination detected by the inclination detection unit is provided.

Further, the support leg level setting device according to the present invention is:
The engagement member can be rotated only when the support leg level setting device is erected vertically with respect to the horizontal direction.

Such a support leg level setting device of the present invention is,
Engage with the upper cylindrical part and the plate-like protrusion on the upper surface side of the disk-like support part of the panel support base of the support leg that supports the floor panel of the free access floor, and transmit the rotation to the panel support base. A disc-shaped engaging member that is driven to rotate by a driving means via a coupling member;
E Bei the light receiving portion to stop the rotation of the engagement member when receiving the laser,
The coupling member includes an upper bar-shaped portion whose upper end portion is coupled to the driving means, at least two lower bar-shaped portions whose lower end portions are fixed to the engagement member, a lower end portion of the upper bar-shaped portion, and the By having a branching bar-shaped part formed between the upper ends of the lower bar-shaped part ,
The work efficiency of setting the level of the support legs can be improved, and an excessive load on the worker can be prevented.

It is a perspective view of the support leg level setting device 30 which concerns on the 1st Embodiment of this invention. It is a perspective view which expands and shows the lower part of the support leg level setting device 30 shown in FIG. FIG. 3A is a top view of the engaging member 33, and FIG. 3B is a bottom view of the engaging member 33. 4A is a view showing a state immediately before the upper cylindrical portion 17b and the protrusion 19 of the support leg 2 are inserted into the engagement hole 33d of the engagement member 33, and FIG. It is a figure which shows the state which the upper cylindrical part 17b of the support leg 2 and the protrusion 19 were penetrated to 33d engagement hole 33d. FIG. 5A is a diagram showing a state immediately before the engaging member 33 of the support leg level setting device 30 is placed on the support surface 18a of the support leg 2, and FIG. 5B is a support leg level setting device. It is a figure which shows the state which 30 is rotating the panel support stand 14 of the support leg 2. As shown in FIG. FIG. 6A is a diagram showing a state in which the support leg level setting device 30 rotates the panel support base 14 of the support leg 2 before the light receiving unit 36 receives the laser 22, and FIG. FIG. 6 is a view showing a state where the light receiving unit 36 receives the laser 22 and the support leg level setting device 30 stops the rotation of the panel support 14 of the support leg 2. The height of the support surface 18a when the light receiving unit 36 receives the laser 22 and the support leg level setting device 30 stops the rotation of the panel support 14 of the support leg 2 supports the panel support 14 to be set. It is a figure for demonstrating that it is the height of the surface 18a. It is a perspective view of the support leg level setter 50 which concerns on the 2nd Embodiment of this invention. FIG. 9 is a perspective view showing a state in which the coupling member 52 and the engaging member 33 are removed from the main body 31 in the support leg level setting device 50 shown in FIG. 8. It is a perspective view of the support leg level setting device 60 which concerns on the 3rd Embodiment of this invention. It is a figure which shows the state (state which is not perpendicular | vertical with respect to the earth) in which the center axis | shaft of the support leg level setter 60 incline with the predetermined angle with respect to the center axis of the support leg 2. It is the partial side view of the free access floor 6 comprised using the support leg 2 and the floor panel 4. FIG. It is a side view of the support leg 2 shown in FIG. It is a top view of the support leg 2 shown in FIG. It is a figure which shows the state in which the laser 22 is irradiated from the laser generator 21 installed on the floor surface 3 in order to demonstrate the conventional level setting method of the support leg 2. FIG. This is a conventional level setting method for the support leg 2 in which the metal scale 26 is erected on the support surface 18 a of the support leg 2 and the irradiation position of the laser 22 on the metal scale 26 is confirmed.

  Hereinafter, the form for implementing the support leg level setting device which concerns on this invention is demonstrated concretely based on drawing.

  FIG. 1 to FIG. 7 are diagrams which are referred to for explaining the support leg level setting device 30 according to the first embodiment of the present invention.

  As shown in FIG. 1, the support leg level setting device 30 according to the present embodiment includes a substantially box-shaped main body 31, a substantially bifurcated bar-shaped coupling member 32, a substantially disk-shaped engagement member 33, A substantially rod-shaped grip 34, a switch 35, and the like are provided.

  As shown in FIG. 1, the main body 31 includes a light receiving unit 36 that receives the laser 22 (see FIGS. 15 and 16), a drive unit 37 having a motor 37a that rotates the coupling member 32 and the engagement member 33, and the like. ing.

  A push button type switch 35 (see FIG. 1) is provided on the upper surface of the main body 31. Then, when the switch 35 is pressed to turn it on, the main body 31 starts, and when the switch 35 is pressed again to return the switch 35 to the original switch-off state, the operation of the main body 31 ends.

  As shown in FIG. 1, the light receiving unit 36 receives a long and narrow light receiving window 36 a provided on the front side of the main body 31 and the laser 22 (see FIG. 15) that has passed through the light receiving window 36 a. It is comprised from an element (not shown) etc.

  As shown in FIG. 2, the coupling member 32 extends in the vertical direction in the figure, and the upper end portion of the coupling member 32 is coupled to the drive part 37 of the main body part 31. The rod-shaped portion 32a has a branched rod-shaped portion 32b formed to branch from the lower end portion in the drawing to the right direction in the drawing and the left direction in the drawing.

  Further, as shown in FIG. 2, the coupling member 32 includes a lower bar portion 32c extending in the lower direction in the drawing from the right end portion in the drawing of the branch rod-like portion 32b, and a left end portion in the drawing of the branch rod-like portion 32b. It has a lower bar portion 32d extending in the lower direction in the figure.

  Further, as shown in FIG. 2, the engaging member 33 is disposed below the coupling member 32 so that a line obtained by extending the central axis 32 e of the upper bar portion 32 a and the central axis 33 a of the engaging member 33 coincide with each other. Has been. The lower ends of the lower bar portions 32c and 32d are fixed to the upper surface 33b of the engaging member 33, respectively.

  As described above, the coupling member 32 couples the drive unit 37 of the main body 31 and the engagement member 33.

  And when the motor 37a (refer FIG. 1) of the drive part 37 rotates, the coupling member 32 rotates centering on the center axis line 32e (refer FIG. 2) of the upper side rod-shaped part 32a, and the engaging member 33 is also comprised. In conjunction with the rotation of the coupling member 32, it rotates around its central axis 33a (see FIG. 2) (see FIG. 5 (b)).

  As shown in FIGS. 2 and 3, the substantially disc-shaped engagement member 33 has a substantially circular upper surface 33 b and lower surface 33 c and an engagement hole 33 d penetrating in the plate thickness direction.

  As shown in FIG. 3, the engaging hole 33d has a substantially circular opening through the central portion of the engaging member 33 and an interval of approximately 90 degrees between the inner peripheral surface of the through hole 33e. Opening shapes extending from the four open positions to the outer peripheral side of the engaging member 33 are formed from four substantially rectangular through holes 33f.

  Further, as shown in FIGS. 4 (a) and 4 (b), the engagement hole 33d is formed on the upper cylindrical portion of the support leg 2 when the engagement member 33 is placed on the support surface 18a of the support leg 2. 17b (see FIG. 13) passes through the through hole 33e (see FIG. 3), and the four protrusions 19 (see FIG. 13) of the support leg 2 pass through the four through holes 33f (see FIG. 3), respectively. It is formed as follows.

  For this reason, when the engagement member 33 rotates around the central axis 33a (see FIG. 2) in a state where the engagement member 33 is placed on the support surface 18a of the support leg 2 (see FIG. 5B). The upper cylindrical portion 17b of the support leg 2 and the projection 19 are engaged with the engagement hole 33d of the engagement member 33, and the panel support 14 of the support leg 2 is also rotated relative to the leg portion 16. It is like that.

  Therefore, when the motor 37a of the drive unit 37 rotates in a state where the engagement member 33 is placed on the support surface 18a of the support leg 2 (see FIG. 5B), the rotational force is generated by the coupling member 32. And, it is transmitted to the panel support 14 via the engaging member 33, and the panel support 14 rotates relative to the leg 16.

  As shown in FIGS. 2 and 3, a push button type switch 33 g is provided on the lower surface 33 c of the engaging member 33. Unlike the switch 35 (see FIG. 1) provided on the upper surface of the main body 31, the switch 33g is formed so as to be in a switch-on state only while being pressed.

  For this reason, the switch 33g is pushed inside the engagement member 33 when the engagement member 33 is placed on the support surface 18a of the support leg 2 (the state shown in FIG. 5B). Entered and switched on.

  When the switch 35 (see FIG. 1) on the upper surface of the main body 31 is in the switch-on state and the switch 33g is also in the switch-on state, the motor 37a of the drive unit 37 starts to rotate.

  Further, when the lower surface 33c of the engaging member 33 is separated from the support surface 18a of the support leg 2, the switch 33g returns to the switch-off state, and the rotation of the motor 37a of the drive unit 37 is stopped.

  Thus, by providing the switch 33g, the engagement member 33 is rotated only when the engagement member 33 is placed on the support surface 18a of the support leg 2 (see FIG. 5B). Therefore, the operator can safely adjust the level of the support leg 2.

  In order to set the height of the support surface 18a of the panel support base 14 to a target height using the support leg level setter 30, first, as shown in FIG. 6, the light receiving window 36a ( The orientation of the support leg level setting device 30 is set so that the direction of the laser generator 21 (see FIG. 1) faces the direction of the laser generator 21 (right side in FIG. 6A).

  When the switch 35 (see FIG. 1) of the main body 31 is switched on in a state where the engaging member 33 is placed on the support surface 18a of the support leg 2 (see FIG. 5B), the drive unit The rotation of the 37 motor 37a starts.

  Then, when the rotation of the motor 37a of the drive unit 37 starts, the panel support stand until the laser 22 of the laser generator 21 is applied to the light receiving window 36a of the light receiving unit 36 as shown in FIG. 14 continues to rotate relative to the leg 16.

  Further, when the panel support base 14 rotates relative to the leg portion 16 and the height position of the support surface 18a (see FIG. 13) of the panel support base 14 rises, the support leg level setting device 30 increases with the rise. The height position also rises.

  As shown in FIG. 6B, when the laser 22 of the laser generator 21 is irradiated onto the light receiving window 36a of the light receiving unit 36 and the light receiving element (not shown) receives the laser 22, the light receiving unit 36 outputs a stop signal 31a for stopping the rotation of the motor 37a to the drive unit 37, and the relative rotation of the panel support base 14 with respect to the leg portion 16 is stopped.

  Thus, before the laser 22 of the laser generator 21 is applied to the light receiving window 36a of the light receiving unit 36, the panel support 14 continues to rotate relative to the leg 16 and the laser 22 is moved to the light receiving unit 36. When the light receiving window 36a is irradiated, the relative rotation of the panel support 14 with respect to the legs 16 is stopped.

  Further, as shown in FIG. 7, the height from the lower surface 33c of the engaging member 33 to the light receiving window 36a of the light receiving unit 36 is determined from the height position of the laser 22 on the support surface 18a of the panel support 14 to be set. The distance L3 to the height position (see FIG. 15) is set.

  For this reason, when the light receiving window 36a of the light receiving unit 36 is irradiated with the laser 22 and the relative rotation of the panel support 14 with respect to the leg 16 stops, the height position of the support surface 18a is automatically set to the target height. It has become so.

  As described above, in the conventional level setting method for the support leg 2, the operator rotates the panel support 14 relative to the leg 16 while visually checking the scale of the metal scale 26 irradiated with the laser 22. The work to make was repeated.

  Therefore, by using the support leg level setting device 30 according to the present embodiment, it is possible to improve the work efficiency of the level setting of the support leg 2 as compared with the conventional level setting method of the support leg 2 and It is possible to prevent an excessive load on the person.

  Further, in order to make it easy for an operator to carry the support leg level setting device 30, as shown in FIG. 1, a substantially rod-shaped grip 34 is provided on the upper surface of the main body 31.

  From the above, the support leg level setting device 30 according to the present embodiment can improve the work efficiency of the level setting of the support legs and can prevent an excessive load on the operator. .

  8 and 9 are diagrams which are referred to for explaining the support leg level setting device 50 according to the second embodiment of the present invention.

  As shown in FIG. 8, the support leg level setting device 50 according to the present embodiment includes a socket 55 and a coupling member 52, and the support leg level setting device 30 according to the first embodiment. Are different. Other configurations are the same as those of the support leg level setting device 30 according to the first embodiment.

  That is, in the support leg level setting device 30 according to the first embodiment, as shown in FIG. 1, the upper end portion of the coupling member 32 is fixed to the main body portion 31, and the main body portion 31 engages with the coupling member 32. The joint member 33 cannot be removed.

  On the other hand, in the support leg level setting device 50 according to the present embodiment, as shown in FIGS. 8 and 9, a socket 55 is provided on the lower surface of the main body 31, and the upper end of the coupling member 52 in FIG. 9 or the upper end of the coupling member 52 in FIG. 9 can be extracted from the socket 55.

  As shown in FIG. 9, the diameter of the upper end portion of the coupling member 52 in the drawing is slightly smaller than the diameter of the other part of the coupling member 52 so that it can be inserted into the socket 55.

  As described above, in the support leg level setting device 50 according to the present embodiment, since the coupling member 52 is detachably coupled to the main body 31, the support is set according to the shape of the support leg for setting the level. The engagement member 33 that can be engaged with the leg can be replaced.

  Also with the support leg level setting device 50 according to the present embodiment, the same effects as those of the support leg level setting device 30 according to the first embodiment can be obtained.

  10 and 11 are diagrams which are referred to for explaining a support leg level setting device 60 according to the third embodiment of the present invention.

  As shown in FIG. 10, the support leg level setting device 60 according to the present embodiment is related to the first embodiment in that the main body 31 includes an inclination detection unit 61 and an audio output unit 62. This is different from the support leg level setter 30. Other configurations are the same as those of the support leg level setting device 30 according to the first embodiment.

  As shown in FIG. 11, the tilt detector 61 having the tilt sensor 61 a detects the tilt of the support leg level setter 60 with respect to the horizontal direction, and outputs a tilt signal 61 b indicating the tilt to the audio output unit 62. ing. And the audio | voice output part 62 is outputting the sound according to the inclination with respect to the horizontal direction of the support leg level setting device 60 based on the input inclination signal 61b.

  For example, when the support leg level setting device 60 changes from a state perpendicular to the horizontal direction to a state perpendicular to the horizontal direction, the sound is changed so that the operator can understand this fact. .

  As described above, since the support leg level setting device 60 according to the present embodiment includes the inclination detection unit 61 and the audio output unit 62, the support leg level setting device 60 is used depending on the sound output from the audio output unit 62. The operator can determine whether or not is standing upright in a state perpendicular to the horizontal direction.

  Also with the support leg level setting device 60 according to the present embodiment, the same effects as those of the support leg level setting device 30 according to the first embodiment can be obtained.

  The present invention is not limited to the above embodiment, and various changes can be made to the support leg level setting device as long as the object of the present invention can be achieved.

  For example, the support leg level setting devices 30, 50, 60 according to the first to third embodiments are provided with the switch 33g on the lower surface 33c of the engaging member 33 as shown in FIG. The switch 33g may not be provided.

  When the switch 35 provided on the upper surface of the main body 31 is switched on, the rotation of the motor 37a of the driving unit 37 starts. When the switch 35 is switched off, the rotation of the motor 37a of the driving unit 37 is stopped. It may be like this.

  The support leg level setting devices 30, 50, 60 according to the first to third embodiments are provided with a switch 35 on the upper surface of the main body 31, as shown in FIGS. However, the switch 35 may not be provided.

  When the switch 33g provided on the lower surface 33c of the engaging member 33 is switched on, the rotation of the motor 37a of the drive unit 37 starts. When the switch 33g is switched off, the rotation of the motor 37a of the drive unit 37 is started. You may come to stop.

  In the support leg level setting devices 30, 50, 60 according to the first to third embodiments, the height position of the light receiving portion 36 of the main body 31 is fixed. It may be configured such that it can slide in the direction and can be fixed with a screw at a predetermined height position.

  By sliding the height position of the light receiving unit 36, the distance L3 (see FIG. 7) from the height position of the laser 22 to the height position of the support surface 18a of the panel support base 14 to be set is set. The height from the lower surface 33c of the engaging member 33 to the light receiving window 36a of the light receiving unit 36 can be adjusted.

  Further, in the support leg level setting devices 30, 50, 60 according to the first to third embodiments, the coupling portions 32, 52 shown in FIGS. 2, 8, and 10 can extend and contract in the vertical direction in the drawings. However, the coupling portions 32 and 52 may be configured to be extendable in the vertical direction in the drawing.

  For example, the upper bar-shaped part 32a (see FIG. 2) of the coupling part 32 may be configured to be able to expand and contract in the vertical direction in FIG. 2, and the lower bar-shaped parts 32c and 32d expand and contract in the vertical direction in FIG. It may be configured to be able to.

  The distance L3 (from the height position of the laser 22 to the height position of the support surface 18a of the panel support base 14 to be set by expanding and contracting the coupling portions 32 and 52 in the vertical direction in FIGS. As shown in FIG. 7, the height from the lower surface 33c of the engaging member 33 to the light receiving window 36a of the light receiving unit 36 can be adjusted.

  Further, in the support leg level setting devices 30, 50, 60 according to the first to third embodiments, the light receiving window 36a of the light receiving unit 36 is provided on the outer peripheral side surface of the main body 31. Although the light receiving window 36a is provided at a position away from the central axis extending in the vertical direction of 31, it is not necessary to be limited to such a configuration.

  For example, an indented recess is formed on the outer peripheral side surface of the main body 31 so that the light receiving window 36a of the light receiving section is provided on the central axis extending in the vertical direction of the main body 31 or at a position close to the central axis. The light receiving window 36a may be installed in the recess.

  Since the floor surface 3 includes a portion where an inclined surface or an uneven surface is formed, the light receiving window 36a is provided on the central axis of the main body 31 or at a position close to the central axis, whereby the support leg level setting device 30 is provided. , 50, 60 can be reduced in height position error of the light receiving window 36a.

  Even when the support leg level setting devices 30, 50, 60 are tilted, the laser 22 can pass through the light receiving window 36 a so that the light receiving element can receive the laser 22.

  In the support leg level setting devices 30, 50, 60 according to the first to third embodiments, the upper cylindrical portion 17b of the support leg 2 and the protrusion 19 are engaged with the engagement member 33. Although the engagement hole 33d (see FIG. 4) is formed in the support member 2, the engagement member 33 is limited to such a shape as long as it can be engaged with the panel support 14 of the support leg 2. There is no need.

  In the support leg level setting devices 30, 50, 60 according to the first to third embodiments, the motor 37a of the drive unit 37 rotates the engaging member 33. There is no need to be limited.

  For example, a handle is provided on the upper portion of the main body 31, and when the operator turns the handle, the engaging member 33 rotates and the laser 22 is irradiated onto the light receiving window 36 a of the light receiving unit 36. It may be configured such that a signal such as a sound or a light for instructing to stop the rotation of the handle is transmitted.

  In the support leg level setting device 60 according to the third embodiment, the operator can determine whether or not the support leg level setting device 60 is erected in a state perpendicular to the horizontal direction. In addition, the sound corresponding to the inclination angle of the support leg level setting device 60 with respect to the horizontal direction is output, but it is not necessary to be limited to such a configuration.

  For example, the engaging member 33 may be configured to be rotatable only when the support leg level setting device 60 is erected in a state perpendicular to the horizontal direction.

2 Support leg 3 Floor surface 4 Floor panel 4a Bottom surface 4b Stepped part 5 Wall surface 6 Free access floor 7 Male screw member 14 Panel support 16 Leg part 16a Male screw part 17 Supporting part 17a Female thread part 17b Upper cylindrical part 17c Lower cylindrical part 17d Female screw hole 18 Support part 18a Support surface 19 Projection 20 Countersunk bolt 20a Head 20b Male screw part 21 Laser generator 22 Laser 26 Metal scale 30 Support leg level setting device 31 Main body part 31a Stop signal 32 Connecting member 32a Upper bar part 32b Branch bar shape Portion 32c Lower rod portion 32d Lower rod portion 32e Center axis 33 Engaging member 33a Center axis 33b Upper surface 33c Lower surface 33d Engagement hole 33e Through hole 33f Through hole 33g Switch 34 Grip 35 Switch 36 Light receiving portion 36a Light receiving window 37 Drive portion 37a motor 0 support legs level setter 52 coupling member 55 sockets 60 support legs level setter 61 inclination detecting unit 61a tilt sensor 61b ramp signal 62 audio output unit L1, L2, L3 distance

Claims (11)

Engage with the upper cylindrical part and the plate-like protrusion on the upper surface side of the disk-like support part of the panel support base of the support leg that supports the floor panel of the free access floor, and transmit the rotation to the panel support base. A disc-shaped engaging member that is driven to rotate by a driving means via a coupling member;
E Bei the light receiving portion to stop the rotation of the engagement member when receiving the laser,
The coupling member includes an upper bar-shaped portion whose upper end portion is coupled to the driving means, at least two lower bar-shaped portions whose lower end portions are fixed to the engagement member, a lower end portion of the upper bar-shaped portion, and the A support leg level setting device having a branching bar-like part formed between upper ends of the lower bar-like part . The support leg level setting device according to claim 1, wherein the engaging member is detachably coupled. The support leg level setting device according to claim 1, further comprising a motor that rotates the engagement member. The support leg level setter according to claim 3, further comprising a first switch that directly switches a start and a stop of the operation of the motor by hand. When the engagement member is placed on the support surface of the panel support base, the motor starts to operate, and when the engagement member moves away from the support surface of the panel support base, The support leg level setter according to claim 3, further comprising a second switch for stopping the operation. A third switch that switches directly by hand,
When the engaging member is placed on the support surface of the panel support, the switch is turned on, and when the engagement member is separated from the support surface of the panel support, the switch is turned off. A fourth switch,
The support leg level setting device according to claim 3, wherein the motor operates only when both the third switch and the fourth switch are in a switch-on state. The support leg level setting device according to any one of claims 1 to 6, wherein a distance from a lower surface of the engagement member to the light receiving unit can be adjusted. The support leg level setting device according to any one of claims 1 to 7, wherein the light receiving unit is disposed on a central axis of the support leg level setting device. The support leg level setter according to any one of claims 1 to 8, further comprising an inclination detection unit that detects an inclination of the support leg level setter with respect to a horizontal direction. The support leg level setter according to claim 9, further comprising: an audio output unit that outputs a sound corresponding to the inclination detected by the inclination detection unit. The support leg level setter according to claim 9 or 10, wherein the engagement member is rotatable only when the support leg level setter is erected vertically with respect to a horizontal direction.

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