JP2802217B2 - Ceiling opening method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening method for easily forming openings and side wall openings provided when a lighting fixture or an air conditioner is mounted on a ceiling of a house. It is about.

[0002]

2. Description of the Related Art For example, an opening for mounting a lighting fixture or an air conditioner on a ceiling of a house is formed during indoor wiring. This opening work was previously performed by a worker on a stepladder,
He was working in an unstable position using a cutting tool. This work was very dangerous because of the work at height. Therefore, Japanese Patent Application Laid-Open No. 61-111892 and Japanese Patent Application Laid-Open
Japanese Patent No. 57581 discloses a ceiling working robot provided with a six-axis articulated manipulator. This robot has a structure in which a bogie is fixed to a floor surface via an outrigger using its weight.

[0003]

However, the above-mentioned conventional ceiling work robot has the following problems. (A) At the time of cutting with the work tool at the tip of the manipulator, the machine body tends to move or vibrate due to the reaction force, so that the cutting accuracy of the opening is likely to be inaccurate. Further, with the tip tool of the manipulator, it is difficult to suck and collect the chips due to the structure, and there is a risk that the eyes may be hurt by the dust and chips generated at the time of cutting.

(B) The overhead work robot has a considerable weight because it has a structure that is stabilized by weight. For this reason, it was necessary for several people to move in the work place, and the work efficiency was poor. In addition, when the robot is to be brought into the workplace, it must be disassembled into a portable size and assembled, which is troublesome. (C) Due to the structure, the entire robot becomes large and the structure is complicated, so it is expensive, and it is difficult to introduce it in small-scale offices and the like.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to an opening device for providing an opening in a ceiling or the like. This device comprises a base having moving means, and an upright stand. The extendable jack body that is provided, a cutting device provided at the top of the jack body, fixing means for positioning the cutting device on the opening surface, and the cutting device includes:
A transition means is provided on two transition tables provided on both sides of the center or the center line of the opening, and has a transition means for moving the transition table to a symmetric position of the center or the center line. Using an opening device in which a screw-in fixing tool is provided so as to be able to ascend and descend parallel to the center or center line of
Fixing to the center or center line of the opening by fixing means
And cutting equipment on two transition stages on either side of the center or the center line.
To the outline of the opening at the center or the center line symmetrical position.
Characterized in that the ceiling plate is opened by moving along the ceiling
It is constituted by the well opening method .

[0006]

At the work site, an opening device is arranged below the opening to perform accurate positioning. The transition means and the transition range of the cutting means are set by adjusting the stopping means of the cutting device. The cutting device is raised by operating the cutting means and the jack body, and the fixing device is positioned on the opening surface by the fixing means.
To the eye. The transition table and the cutting means are connected to the opening by each transition means.
The transition is made along a symmetrical position on both sides of the center or the center line, and the opening is cut into the required shape. With the remaining plate fixed by the fixing means, the jack body is operated to lower the cutting device.
The opening separating plate fixed to the fixing means is removed, and the opening operation is completed.

It is necessary to mark the position of the opening as an operation before the opening is formed on the opening surface. By using a laser beam for positioning of the cutting device with respect to this marking, the positioning of the cutting device can be accurately performed even when the cutting device is separated from the opening surface, and the labor is reduced.

[0008] In the apparatus provided with the cutting device shown in Figs. 9 and 10, first, the cutting means is fixed to a required position by adjusting means. The fixing means is fixed at the center of the opening by extending the jack body at the center of rotation. While operating the cutting means, the transition table is raised by the elevating means, and the cutting means is set at the cutting position. The migration table by the rotational driving means is shifted along the symmetric position of the aperture center, providing a circular opening in the cutting unit. While the cutting opening plate is fixed to the fixing means, the jack body is operated to lower the cutting device, and the remaining plate is removed from the fixing means.

[0009] In the apparatus provided with the cutting apparatus shown in Figs. 11 and 12 , first, the stop means is adjusted to set the transition range of the cutting means. The jack body at the center of rotation is extended and fixed to the opening surface by the fixing means. While operating the cutting means, the transition table is raised by the elevating means, and the cutting means is set at the cutting position. Then, the cutting means is moved to the opening center by the transition means.
Cut along two sides of the opening.

[0010] The cutting means is lowered, and the rotating drive means
The transfer table is rotated by a required angle and then raised again to set the cutting means at the cutting position. Cutting means opened by transition means
The remaining two sides of the opening are cut and opened by moving along the symmetrical positions on both sides of the heart . While the cutting opening plate is fixed by the fixing means, the jack body is operated to lower the cutting device, and the cutting opening plate is removed from the fixing means.

According to the means of FIG . 5 , the base of the cutting device can be tilted in a required direction within a certain angle range through a free connection portion. Even if it does not match the degree of parallelism, the degree of parallelism can be adjusted to the opening surface by the free connection part at the time of fixing, and there is no inconvenience such as the inability of the cutting means to advance due to any of the degrees of parallelism.

[0012] switching to have a chip recovery means for recovering the chips that occurs when cutting is, because it does not or floating or scattered the chips to improve the work environment, that there is no damage the eye worker.

[0013] fixing means have a structure screwed by rotating the threaded body, leaving with fixation of the cutting device to the opening surface can be reliably also need only reverse the threaded body, it can be easily.

[0014] Of transition means is a structure using an air cylinder, for example, the structure is simple as compared with the case of using a hydraulic cylinder, the weight becomes lighter.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 is a schematic front view showing an embodiment of the opening device according to the present invention, FIG. 2 is a front view showing the structure of the cutting device, FIG. 3 is a plan view showing the structure of the cutting device, and FIG. FIG. 5 is an explanatory diagram showing the structure of the angle adjusting unit.

Reference numeral A denotes an opening device having a base 1. The base 1 has a caster 10 as a moving means, and a jack body 11 is provided upright at the center thereof. The jack body 11 has a telescopic structure, and is vertically expanded and contracted by air pressure. The free connection part 1 is located on the upper part of the jack body 11.
2, a cutting device 2a is attached.

Referring to FIG. The free connection portion 12 is interposed between a fixture 13 attached to an upper portion of the jack body 11 and a base 20 of a cutting device 2a described later. The fixing device 13 has a fixing lever 130, which can be attached to and detached from the tip of the jack body 11 by operating the fixing lever 130. Fixture 1
3, a holding plate 131 is provided at an upper portion, and a holding plate 201 is also provided at a lower portion of the base plate 20.

A required number of bolts 120 pass through each of the sandwiching plates 131 and 201, and a nut 121 is screwed thereto. The bolt head side of the bolt 120 projects between the sandwiching plates 131 and 201, and both bolt head sides are immersed in a rubber cushion member 122. The two bolt heads are slightly apart. According to this, it is possible to freely tilt in a predetermined angle range in a required direction of the platform 20 by the action of the cushion member 122.

Please refer to FIG. 1, FIG. 2 and FIG. Cutting equipment 2
a has a platform 20. A rodless cylinder S1 of a required length constituting a transfer means is horizontally mounted on the base plate 20. On both sides of the rodless cylinder S1, guide rods 21 as base guide bodies are provided in parallel at a required interval. At both ends of the rodless cylinder S1, stoppers 22, 22 as stop means for stopping a transfer table 23 to be described later are mounted so as to be position-adjustable. The transfer table 23 is provided adjacent to a piston (not shown) of the rodless cylinder S1 via a magnet so as to follow the piston.

The transfer table 23 has a rectangular shape in a plan view, and has sliders 24, 2 fitted in the guide rods 21, 21 at the lower part thereof.
4 are provided. A guide rod 25 as a guide body is provided at the center of the transfer table 23 so as to be parallel to the longitudinal direction and orthogonal to the guide rods 21. At both ends of the guide rod 25, stoppers 26, 26 as stopping means for stopping a spindle 28 described later are attached so as to be position-adjustable.

On both sides of the guide rod 25, rodless cylinders S2, S2 constituting a transition means are provided in parallel at a required interval. The pistons (not shown) of the rodless cylinders S2, S2 are provided close to each other via a magnet so that transition bodies 27, 27 described later follow the pistons. Two spindles 28 as cutting means are attached to the guide rod 25. The spindle 28 is
It is fixed to transition bodies 27, 27 attached to a guide rod 25 via a slider (not shown). Then, each spindle 28 is attached is B over data bit 29. Further, between the rodless cylinder S1 and one of the guide rods 21, screw-in fixing devices 3 as fixing means are provided at three positions at equal intervals in the longitudinal direction.

Referring to FIG. Each screw-in fixture 3 has air cylinders S3, S3 provided in the vertical direction. A fixed head 30 is attached to the rod head. On both sides of the upper surface of the fixed head 30, spike pins 31,
31 are provided. A screw 32 is provided at the center of the upper surface of the fixed head 30. The screw 32 is fixed to a rotating shaft 34 of a torque limiter 33 arranged below. A motor 35 is provided below the torque limiter 33 to rotate the screw 32 in forward and reverse directions.

When the fixed head 30 is at the lowermost position, the transfer of the transfer table 23 is not obstructed. Further, between the rodless cylinder S1 and the other guide rod 21, a light emitting device 4 that emits a laser beam, which is a means for positioning an opening using a laser beam, is provided so as to emit light in a vertical direction. The light emitting devices 4 are provided at three locations at equal intervals in the longitudinal direction. Then, a line connecting these light emitting devices 4 becomes a substantial center line of the device.

Reference numeral 81 denotes a dust suction device which constitutes a chip collecting means, and reference numeral 82 denotes a suction hose. Tip of the suction hose 82 are then positioned in the vicinity of the B over data bit 29.
83 is an air compressor, 84 is an air pipe, 8
5 is a remote control device, 86 is a power cord, 87 is a control unit,
88 is an air valve section.

FIG. 6 is an explanatory view showing a method of positioning the device corresponding to the position of the opening of the opening using the light emitting device, and FIG.
(A), (b), (c), (d), (e), and (f) are explanatory diagrams showing operation steps of the cutting device, and FIG. 8 is an explanatory diagram showing movement of a cutting blade of the cutting device. . In FIG. 6, only the light emitting device is shown for convenience of description, and other parts are omitted.

The method of use and operation of the present embodiment will be described with reference to FIGS. A marking indicating the opening is made on the ceiling plate 5 at the site. The marking is made by the outline 51 of the opening and the center 5
2 and a center line 53 passing through the center. Then, the opening device A is moved and settled at the approximate position below the marking. At this time, the stoppers 22 and 26 are adjusted, and the transition range of the transition table 23 and the spindle 28 is set in accordance with the opening size.

The laser beam is emitted from the light emitting device 4, and the light point of the light emitting device 4 at the center is aligned with the center 52 of the marking. The light beam points of the light emitting devices 4 on both sides are aligned on the center line 53 (see FIG. 6).

The jack body 11 is gradually extended, and the cutting device 2a is raised. If the jack body 11 is not perpendicular to the floor, each ray point deviates from the center 52 and the center line 53 as the cutting device 2a moves up. In this case, the base 10 is sequentially moved to correct the deviation. . When the cutting device 2a is raised to a predetermined height in a state where there is no displacement, the cutting device 2a is stopped.

Each screw-in fixture 3 is raised, and the screw 32 is rotated to screw into the outline 51 of the opening to fix and position . At this time, even if the parallelism between the cutting device 2a and the ceiling plate 5 is slightly shifted, the free connection portion 12
The cutting device 2a is tilted in accordance with the tilt of the ceiling plate 5 by the action of. Incidentally, b over data bi <br/> Tsu preparative 29 tips of the spindle 28 at this time is not in contact with the ceiling plate 5. And
The jack body 11 is further extended, and the platform 20 is slightly raised. This rising width is absorbed by the cylinder portion of the air cylinder S3 moving upward. This also Russia over data bit 29 of the spindle 28 is cut into the top marking the outline 51 of the ceiling plate 5.

The cutting of the opening by B over data bit 29 is performed as follows. That is, both Russia <br/> over data bit 29 in the initial state has stopped the transition member 27, 27 on both sides of the guide rod 25 is abutted against the stopper 26. Also,
The transition table 23 comes into contact with the stopper 22, and the guide rod 21,
21 is stopped at one end. Initial stop position that is the cutting starting point of both B over data bit 29, symmetrical position on either side of the center line
One short side 512 of the outline 51 of the marking drawn
It is set at both ends of the side.

[0031] Then, as shown in FIG. 8, first, one of Russia <br/> over data bit 29 moves along the contour line 51 at the symmetrical positions on either side of the center line, the center line 53 slightly Make a transition back to where you crossed. Simultaneously, the other b over data bit 29 moves along the contour line 51, is folded migrate centerline 53 at slightly beyond. Thereby, one short side 512 of the outline 51 is cut. It should be noted, and Russia over data bit 2 at this time
The transition of No. 9 is performed by the operation of the rodless cylinder S2.

The long sides of the initial two B over data bi is in a position Tsu DOO 29 outline 51 by the operation of the rodless cylinder S1 5
11 and both long sides 511 are cut. Then one short side of both B over data bit 29 is the outline 51 51
The other short side 512 is cut in the same step as the step of cutting 2. As a result, the outline 51 is cut over the entire circumference, and the opening of the ceiling plate is pierced.

During the above process, the long side 5 of the outline 51
When cutting 11, each screw-in fixture 3 is released in order so as not to hinder the transition of the transition table 23 as shown in FIG. 7, descends to the lowermost position, and immediately after the transition table 23 passes, It rises and is fixed to the ceiling plate 5. That is, the fixing is always performed by at least two of the three screw-in fixing devices 3 among the three screw-in fixing devices 3, and the fixing force is sufficient. The fixing can be easily released by reversing the screw 32.

The jack body 11 is reduced, and the cutting device 2
a is lowered. Along with this, an opening that penetrates the opening
Since the separation plate 50 descends while being fixed to the fixing head 30 of the screw-in fixing device 3, there is no danger of falling, and
The remaining plate 50 is removed from the fixed head 30 by the operator's hand. This completes the opening operation at one location, and the above steps 1 to 5 can be repeated to open the other opening.

FIG. 9 is a plan view of a cutting device having a circular opening, and FIG. 10 is a front view of the cutting device having a circular opening. The cutting device 2b according to the present embodiment is a dedicated machine when the opening is circular. The rotation center body 6 is provided at the center of the base 20 of the cutting device 2b. The rotation center body 6 has an air cylinder S4, and a threaded fixing tool 60 as fixing means is attached to the rod head thereof. The screw-in fixing device 60 has substantially the same structure as the screw-in fixing device 3. The screw 61 is provided at the center of the upper surface, and the spike pins 62 are provided at four positions outside the screw 61.

A base 20b is attached to the base 20 so that the base 20b can rotate about the rotation center body 6. In this embodiment, this drive mechanism utilizes a motor 63 and a gear 64, and is based on known means. A guide rod 21b serving as a guide body is mounted on a center line along the longitudinal direction of the base 20b. Guides at both ends of the rod 21b is attached has sliding body 27b, which the spindle 28 with a B over data bit 29 is a cutting means is fixed. Further, the sliding body 27b Yes the lock lever 270 is provided, can be set to the required position the position of B over data bit 29.

The operation of this embodiment is as follows. Here, only the differences from the case where the cutting device 2a is used will be described. First, the position of the sliding body 27b is set according to the diameter of the opening. Then, the positioning of the opening device A is performed in the same manner as in the case of the cutting device 2a, the jack body 11 is extended, the cutting device 2b is stopped at a required height, the air cylinder S4 is operated to extend the rod, and the screw 61
It positioned fixed to by that threaded fasteners 60 to cut the ceiling plate 5 in plan circular outline 51.

[0038] actuating the spindle 28, further stretched jack body 11, around the two B over data bit 29
Is cut on the outline 51 at the symmetrical position of . By operating the motor 63, the base 20 b is rotated by 180 ° or more via the gear 64 and cut into a circle along the outline 51. Thereafter, the jack body 11 is similarly reduced, the cutting device 2b is lowered, and the remaining plate is removed from the screw-in fixture 60.

FIG. 11 is a plan view of a cutting device having a square opening, and FIG. 12 is a front view of the cutting device having a square opening. The cutting device 2c according to the present embodiment is a dedicated machine when the opening is square. A rotation center body 6c is provided at the center of the base 20 of the cutting device 2c. The rotation center body 6c has a motor-driven elevating device 65, and a screw-in fixing tool 60c as fixing means is attached to the upper part thereof. The screw-in fixing device 60c has substantially the same structure as the screw-in fixing device 3, and has a screw 61c at the center of the upper surface, and spike pins 62c at four positions outside the screw 61c.

The base 2 is mounted on the base 20 via a motor-driven turning device 66 so as to be rotatable about the rotation center body 6c.
0c is attached. The base 20c has a square outer shape, and rodless cylinders S5 and S5 are provided in parallel slightly inside a pair of opposed members. The rodless cylinders S5 and S5 can be moved and adjusted along a guide rod 21c as a guide body.

At both ends of each rodless cylinder S5, stoppers 67 as stopping means are mounted so as to be position-adjustable. A transition body 27c is attached to each rodless cylinder S5 so as to follow a piston (not shown) via a magnet. Then, the transition member 27c, the spindle 28 is fixed with a B over data bit 29 is a cutting means.

The operation of this embodiment is as follows. Here, only the differences from the case where the cutting device 2a is used will be described. First, the position of the stopper 67 is set according to the size of the opening. The positioning of the opening device A is performed in the same manner as in the case of the cutting device 2a, the jack body 11 is extended, and the cutting device 2c is stopped at a required height.
5, the screw-in fixture 60c is raised to fix the screw-in fixture 60c in the square outline 51 of the ceiling plate 5 with the screw 61c.

[0043] actuating the spindle 28, further stretched jack body 11, each b over data bit 29 outline 5
Cut into 1 Each B over <br/> data bits 29 is shifted along the contour line 51 by the rodless cylinder S5, cutting two opposing sides of the square outline 51. Outline 51
Is a square located symmetrically around the screw 61c
It is an outline.

[0044] The jack body 11 slightly reduced, disconnect the B over <br/> data bits 29 from the ceiling plate 5, the base frame 20c is rotated 90 ° by the turning device 66. Then, extending the jack 11 again shifts cuts each B over data bit 29 on the contour line 51, each b over data bi Tsu <br/> preparative 29 by the rodless cylinder S5 along the outline 51 Then, the remaining two opposing sides of the square outline 51 are cut.

Thereafter, the jack body 11 is similarly reduced, the cutting device 2c is lowered, and the remaining plate is removed from the screw-in fixture 60c. The size of the opening can be appropriately set by adjusting the position of the stopper 67 by moving and adjusting the rodless cylinders S5 and S5 along the guide rod 21c. The present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope described in the claims.

[0046]

As described above, according to the present invention, the ceiling opening is precisely cut with the center or center line symmetrical, and the cut-out opening plate is attached to the screw-in fixture and lowered. There is an effect that the ceiling can be opened smoothly and precisely and quickly.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an embodiment of an opening device according to the present invention.

FIG. 2 is a front view showing the structure of the cutting device.

FIG. 3 is a plan view showing the structure of the cutting device.

FIG. 4 is an explanatory view showing the structure of a fixing device.

FIG. 5 is an explanatory diagram illustrating a structure of an angle adjustment unit.

FIG. 6 is an explanatory diagram showing a method of positioning the device corresponding to the position of the opening using the light emitting device.

FIG. 7 is an explanatory view showing operation steps of the cutting device.

FIG. 8 is an explanatory view showing the movement of a cutting blade of the cutting device.

FIG. 9 is a plan view of a cutting device provided with a circular opening.

FIG. 10 is a front view of a cutting device provided with a circular opening.

FIG. 11 is a plan view of a cutting device provided with a square opening.

FIG. 12 is a front view of a cutting device provided with a square opening.

[Explanation of symbols]

Reference Signs List A opening device 1 base 10 caster 11 jack body 12 free connection portion 13 fixture 2a cutting device 20 base plate S1, S2 rodless cylinder 21, 25 guide rod 22, 26 stopper 23, 27 transfer stand 24 slider 28 spindle 29 ro over data bit 3 threaded fasteners 30 fixed head

Claims (1)

(57) [Claims] 1. An opening device for providing an opening in a ceiling or the like, comprising: a base having moving means; an extensible jack body erected on the base; Cutting device provided at the top, fixing means for positioning the cutting device on the opening surface, the cutting device,
A transition means is provided on two transition tables provided on both sides of the center or the center line of the opening, and has a transition means for moving the transition table to a symmetric position of the center or the center line. Using an opening device in which a screw-in fixing tool is provided so as to be able to ascend and descend parallel to the center or center line of
Fixing to the center or center line of the opening by fixing means
And cutting equipment on two transition stages on either side of the center or the center line.
To the outline of the opening at the center or the center line symmetrical position.
Characterized in that the ceiling plate is opened by moving along the ceiling
Well opening method .