Visual safety check structure for wire saw equipment

Abstract

To provide a visual safety confirmation structure for a wire saw device, which allows visual confirmation at all times whether the wire saw device is rotating safely while blocking the scattering of contaminated water and the diffusion of dust with a cover. [Solution] In the visual safety confirmation structure for a wire saw device, the protective cover 2 has a drive motor 11 that rotates and drives the wire saw 14 of the wire saw device 10, and is equipped with a main body cover 3 that covers around the wire saw body 15 that slides on a rail 16, a fixed cover 4 that covers around the driven pulley that is furthest from the wire saw body 15 and does not move, and follower covers 5, 6 that cover the area between the main body cover 3 that slides on the rail 16 and moves away from the fixed cover 4 as cutting progresses, and the main body cover 3, fixed cover 4 and follower cover 5 are each covered with a transparent plate, making it possible to visually check from outside whether the wire saw device 10 is rotating.

Description

[Technical field]

[0001] The present invention relates to a visual safety confirmation structure for a wire saw device. [Background technology]

[0002] Conventionally, it is known to cut and remove concrete structures using a wire saw (wire sawing equipment). In cutting and removal work using such a wire saw, it is necessary to gradually shorten the loop of the wire rope with diamond chips fixed to the surface using a pulley or the like as the cutting progresses. In addition, since there is a risk that the wire rope may become tangled while the wire saw is in operation, or that the diamond chips may fly off if the wire rope comes into contact with something other than the target concrete structure, it is necessary to periodically check at regular intervals whether the pulleys are rotating and running without any problems while the wire saw is in operation.

[0003] However, while there is a demand for visually checking the rotating and running state of the wire saw device, as mentioned above, there is a risk of diamond chips scattering and the scattering of concrete dust generated during cutting, so there is also a demand for some means of covering the pulleys and other equipment to ensure safety and prevent the scattering of dust. Therefore, in the current cutting work of concrete structures using wire saw devices, the wire saw device is covered with a sheet such as a mesh sheet to deal with the possibility of diamond chips scattering, and the sheet is periodically turned over to visually check whether the wire saw device is rotating and running safely.

[0004] For example, Patent Document 1 discloses a cover for a wire saw device which encloses the wire saw device, is provided with a suction device and a cooling device, and has a visible window in the cover (see claims 1 and 2 of Patent Document 1, paragraphs

[0008] to

[0055] of the specification, and Figures 1 to 3 and 8 of the drawings, etc.).

[0005] However, the cover of the wire saw device in Patent Document 1 has a problem that although the area visible through the window can be visually confirmed, important parts of the device such as the pulley, which gradually shrinks as the cutting work progresses, cannot always be visually observed. In addition, the wire saw device in Patent Document 1 supplies cooling water to cool the wire rope, but in seasons such as winter when the dew point temperature is low, the cover window becomes fogged up and visibility becomes impossible.

[0006] On the other hand, Patent Document 2 discloses a guide roller cover for a wire saw that is provided with an observation window for observing the inside, and that solves the problem of machining fluid adhering to the observation window making it impossible to see the inside by providing an injection nozzle for injecting cleaning fluid to wash away the machining fluid adhering to the observation window (see claim 1 in the claims of Patent Document 2, paragraphs

[0009] to

[0017] of the specification, Figure 2 of the drawings, etc.).

[0007] Patent Document 3 discloses a wire saw device that includes a processing chamber for processing a workpiece, a cover that covers the processing chamber, and a transparent portion provided on at least a part of the cover, in which a cleaning unit is provided to prevent the transparent portion, which allows the inside of the processing chamber to be visually observed, from being scratched, and a cleaning liquid that flows over the inner surface of the transparent portion washes away abrasive grains and chips before they adhere to the inner surface of the transparent portion (see claim 1 in the claims of Patent Document 3, paragraphs

[0025] to

[0036] of the specification, and Figures 1, 3, 4, etc. of the drawings).

[0008] However, the guide roller cover for the wire saw described in Patent Document 2 and the wire saw device described in Patent Document 3 are wire saws for processing workpieces in factories where workers cannot enter the working area where brittle materials such as silicon, glass, ceramics, etc. are cut, and are in a different technical field from wire saws used to cut concrete structures. In addition, they do not at all recognize the problem that the water vapor from the cooling water causes the window of the cover to fog up and make it impossible to see during periods of low dew point temperatures such as winter as mentioned above. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent No. 7012043 [Patent Document 2] JP 2000-167760 A [Patent Document 3] JP 2017-196689 A Summary of the Invention [Problem to be solved by the invention]

[0010] Therefore, the present invention has been devised in consideration of the above-mentioned problems, and its object is to provide a visual safety confirmation structure for a wire saw device that allows one to visually confirm at all times whether the wire saw device is rotating safely while blocking out the scattering of contaminated water and the spread of dust with a cover. [Means for solving the problem]

[0011] The visual safety confirmation structure for a wire saw device according to a first aspect of the present invention comprises a wire saw device and a protective cover installed around the wire saw device, and is capable of visually confirming whether the wire saw device is safely rotating while shielding the periphery of the wire saw device with the protective cover. The protective cover has a drive motor that rotates the wire saw of the wire saw device, and is provided with a main body cover that covers the periphery of the wire saw body that slides on a rail, a fixed cover that covers the periphery of the driven pulley that does not move and is the furthest from the wire saw body, and a follower cover that covers between the main body cover that slides on the rail and moves away from the fixed cover as cutting progresses, and the main body cover, the fixed cover and the follower cover are each covered with a transparent plate, and are configured so that it is possible to visually confirm from the outside whether the wire saw device is rotating. The main cover, the fixed cover, and the follower cover of the protective cover are each provided with a sprinkler, and are configured to be able to sprinkle water so that the inside of the transparent plate does not become cloudy. It is characterized by:

[0013] No. 2The visual safety confirmation structure for a wire saw device according to the first invention is characterized in that, in the first invention, the following cover has a plurality of casters and is configured to be able to roll on the concrete structure to be cut using the casters.

[0014] No. 3 The visual safety confirmation structure for a wire saw device according to the present invention is 2 In the present invention, the following covers are provided in a plurality and are configured to be connectable to each other.

[0015] No. 4 The visual safety confirmation structure for a wire saw device according to the present invention is characterized in that, in the first aspect of the invention, the main body cover is equipped with casters for transportation. Effect of the Invention

[0016] First Invention to Third Invention 4 According to the invention, the protective cover prevents the scattering of contaminated water, the spread of dust, and the breakage and scattering of diamond chips (diamond beads), thereby preventing personal injuries to workers such as cuts, while by making the protective cover transparent, it is possible to visually check at all times from outside the protective cover whether the wire saw device inside is rotating safely. According to the first to fourth inventions, the protective cover is provided with a sprinkler, so that the polluted water mixed with concrete powder can be washed away by the sprinkler, and the problem of the transparent plate of the protective cover becoming cloudy and making it impossible to see can be solved even in seasons with low dew point temperatures such as winter. In addition, the inside of the protective cover is constantly moistened by the sprayed water, improving friction and kinking of the wire of the wire saw, and the wear rate of the wire saw can be improved to improve the durability of the wire saw.

[0018] In particular, 2 Inventions and 3 According to the invention, the area around the wire saw between the main cover and the fixed cover which move apart as the wire saw cuts can be reliably shielded by the trailing cover, making it possible to cut a concrete structure safely.

[0019] In particular, 4 According to the invention, casters for transportation are attached to the main body cover, so that it is easy to transport the machine along roads, etc. to the site where cutting work is to be performed. [Brief description of the drawings]

[0020] [Figure 1]FIG. 1(a) is a side view showing the wire saw device and the visual safety confirmation structure at the start of cutting, and FIG. 1(b) is a plan view showing the wire saw device and the visual safety confirmation structure at the start of cutting. [Diagram 2] FIG. 2(a) is a side view showing the wire saw device and the visual safety confirmation structure during interruption, and FIG. 2(b) is a plan view showing the wire saw device and the visual safety confirmation structure during interruption. [Diagram 3] FIG. 3(a) is a side view showing the wire saw device and the visual safety confirmation structure when the cover is added, and FIG. 3(b) is a plan view showing the wire saw device and the visual safety confirmation structure when the cover is added. [Figure 4] FIG. 4(a) is a side view showing the wire saw device and the visual safety confirmation structure when cutting is completed, and FIG. 4(b) is a plan view showing the wire saw device and the visual safety confirmation structure when cutting is completed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description will be given of an embodiment of a visual safety confirmation structure for a wire saw apparatus according to the present invention with reference to the drawings.

[0022] [Visual safety check structure for wire saw equipment] A visual safety confirmation structure 1 for a wire saw device according to an embodiment of the present invention will be described with reference to Fig. 1. Fig. 1(a) is a side view showing the wire saw device 10 and the visual safety confirmation structure 1 at the start of cutting, and Fig. 1(b) is a plan view showing the wire saw device 10 and the visual safety confirmation structure 1 at the start of cutting.

[0023] As shown in Figure 1(a), the visual safety confirmation structure 1 for a wire saw device (hereinafter simply referred to as the visual safety confirmation structure 1) is composed of a wire saw device 10 and a protective cover 2 consisting of multiple covers installed around it. The protective cover 2 blocks the scattering of contaminated water and the spread of dust, and by making the protective cover 2 transparent, it is possible to visually confirm at all times from outside the protective cover 2 whether the wire saw device 10 inside is rotating safely.

[0024] <Wire saw device> First, a brief description will be given of the wire saw device 10. The wire saw device 10 is composed of a drive motor 11 that rotates and drives a wire saw 14 described below, a drive pulley 12 that is rotated and driven by this drive motor 11, a plurality of driven pulleys 13a to 13g that are driven by this drive pulley 12, and the wire saw 14 suspended between these drive pulley 12 and driven pulley 13.

[0025] The drive motor 11, the drive pulley 12, and the two driven pulleys 13a, 13b constitute a wire saw body 15, and this wire saw body 15 is configured to be slidable along a rail 16.

[0026] The wire saw 14 is inserted into holes h1, h2 drilled in a concrete structure C1, such as a concrete girder, to be cut, with three driven pulleys 13c to 13e provided above the hole h1 and two driven pulleys 13f, 13g provided above the hole h2.

[0027] In other words, as cutting of the concrete structure C1 progresses with the wire saw 14 between holes h1 and h2, the wire saw body 15 slides in the direction of the arrow along the rail 16, thereby maintaining a certain degree of tension on the wire saw 14.

[0028] <Protective cover> The protective cover 2 is composed of a main body cover 3 that covers the wire saw body 15, a fixed cover 4 that covers the two stationary driven pulleys 13f, 13g located above the hole h2 that is furthest from the wire saw body 15, and a number of follower covers 5, 6 that cover the wire saw 14 and driven pulleys 13c to 13e between the main body cover 3 and the fixed cover 4, which move away from the fixed cover 4 as cutting progresses.

[0029] (Main unit cover) The main body cover 3 is a cover that covers the drive pulley 12 and two driven pulleys 13a, 13b of the wire saw main body 15, excluding the drive motor 11 and the rail 16, and is provided with a flat metal frame 30 on the left and right of the direction of travel indicated by the arrow, and a transparent plate 31 made of resin glass, quartz glass, or the like attached to the frame 30 with screws or the like.

[0030] Furthermore, in order to solve the problem of the window of the cover becoming fogged up and obscuring visibility during seasons with low dew point temperatures, such as winter, as described in the background art, the main body cover 3 is provided with a sprinkler 32 on the ceiling surface near the center of the frame 30, which is connected to a water supply means such as a water facility and sprays water on the inner surface of the transparent plate 31.

[0031] Furthermore, casters 33 are attached to the main body cover 3 for transporting the machine over roads to the site where the cutting work is to be performed. In the illustrated embodiment, only one caster 33 is shown, but it goes without saying that a plurality of casters may be attached.

[0032] (Fixed cover) The fixed cover 4 is a cover that covers the two driven pulleys 13f, 13g that are fixed to the concrete structure C1 above the hole h2 and do not move, and includes a metal box-shaped frame 40 and a transparent plate 41 similar to the transparent plate 31 described above that is attached to the frame 40 with screws or the like. However, the transparent plate 31 is not attached to the end face of the frame 40 on the main body cover 3 side so that a follower cover 5 described later can be inserted therethrough.

[0033] In addition, similar to the sprinkler 32 described above, a sprinkler 42 is provided on the ceiling surface near the center of the frame body 40, which is connected to a water supply means such as a water facility and sprays water on the inner surface of the transparent plate 41.

[0034] An opening is provided in the lower part of the transparent plate 41 on the side of the fixed cover 4, and a mesh sheet 43 is attached to this opening, allowing ventilation from the outside to the inside of the fixed cover 4. Therefore, even when water is supplied to cool the wire saw 14, the problem of moisture building up inside the fixed cover 4 and making it impossible to see the wire saw device 10 inside through the transparent plate 41 can be resolved to a certain extent, even if the sprinkler 42 is not operated.

[0035] (Following cover) The follower cover 5 (6) includes a metal box-shaped frame 50 (60) and a transparent plate 51 (61) similar to the above-mentioned transparent plate 31 attached to the frame 50 (60) with screws or the like. However, the transparent plate 51 (61) is not attached to the main body cover 3 side of the frame 50 (60) and both end faces of the fixed cover 4 in order to insert the main body cover 3 and the follower cover 5 therethrough.

[0036] In addition, similar to the sprinklers 32, 42 described above, the following cover 5 (6) is provided with a sprinkler 52 (62) on the ceiling surface near the center of the frame body 50 (60) which is connected to a water supply means such as a water facility and sprays water on the inner surface of the transparent plate 51 (61).

[0037] An opening is provided in the lower part of the transparent plate 51 (61) on the side of the follower cover 5 (6), and a mesh sheet 53 is attached to this opening, allowing ventilation from the outside to the inside of the follower cover 5 (6). Therefore, even when water is supplied to cool the wire saw 14, the problem of moisture building up inside the follower cover 5 (6) and making it impossible to see the wire saw device 10 inside through the transparent plate 51 (61) can be resolved to a certain extent, even if the sprinkler 52 (62) is not operated.

[0038] Furthermore, the follower cover 5 (6) is also provided with four casters 54 (64) for moving along the top surface of the concrete structure C1. Of course, the number of casters 54 (64) is not limited to four, and it goes without saying that more casters may be provided.

[0039] Next, the visual safety confirmation structure 1 will be further explained in accordance with the progress of the cutting work with reference to Fig. 2 and Fig. 3. Fig. 2(a) is a side view showing the wire saw device 10 and the visual safety confirmation structure 1 at the time of interruption when cutting is interrupted because the main body cover 3 has moved and cannot be covered by the following cover 5, and Fig. 2(b) is a plan view showing the wire saw device 10 and the visual safety confirmation structure 1 at the time of interruption. Fig. 3(a) is a side view showing the wire saw device 10 and the visual safety confirmation structure 1 at the time of adding a cover by connecting the following cover 6 to the following cover 5, and Fig. 3(b) is a plan view showing the wire saw device 10 and the visual safety confirmation structure 1 at the time of adding a cover.

[0040] As shown in Fig. 2, when cutting of the concrete structure C1 between holes h1 and h2 by the wire saw device 10 progresses, the wire saw body 15 slides along the rail 16, and the follower cover 5 cannot cover the space between the body cover 3 and the fixed cover 4. Therefore, in the unlikely event that the wire saw 14 cuts or diamond chips fly off from the wire saw 14, it is no longer possible to cover with the protective cover 2. Therefore, when the wire saw body 15 moves to the state shown in Fig. 2, the drive motor 11 of the wire saw device 10 is stopped, and cutting of the concrete structure C1 by the wire saw device 10 is interrupted.

[0041] 3, a follower cover 6 having substantially the same configuration as the above-mentioned follower cover 5 is added, and the follower cover 5 and the follower cover 6 are connected together. At this time, since the connecting hooks 55 are attached to the transparent plates 51, 61 on the ceiling surface between the follower cover 5 and the follower cover 6, the follower cover 5 and the follower cover 6 can be easily connected together in a short time.

[0042] 3, removable handles 56, 66 are attached near the center of the end faces of the frame bodies 50 and 60 at the connecting portions between the follower covers 5 and 6. Therefore, when transporting the follower covers 5 and 6 along a road or the like to the site where cutting work is to be performed, it is easy to move them by holding the handles 56, 66 and rolling them on the top surface of the concrete structure C1 with the casters 54, 64.

[0043] Then, as shown in Fig. 4, the wire saw device 10 completes cutting of the concrete structure C1 between holes h1 and h2, and the sliding movement of the wire saw body 15 on the rail 16 stops. Fig. 4(a) is a side view showing the wire saw device 10 and the visual safety confirmation structure 1 when cutting is completed, and Fig. 4(b) is a plan view showing the wire saw device 10 and the visual safety confirmation structure 1 when cutting is completed.

[0044] According to the visual safety confirmation structure 1 of this embodiment described above, the protective cover 2 shields the periphery of the wire saw device 10, and the protective cover 2 prevents the scattering of contaminated water, the spread of dust, and the breakage and scattering of diamond chips (diamond beads), thereby preventing personal accidents to workers, such as cuts.

[0045] In addition, according to the visual safety confirmation structure 1, by covering the protective cover 2 that shields the periphery of the wire saw device 10 with a transparent plate, it is possible to visually confirm at all times from outside the protective cover 2 whether the wire saw device 10 inside is rotating safely.

[0046] Moreover, according to the visual safety confirmation structure 1, the protective cover 2 is provided with the sprinklers 32, 42, 52, and 62, so that the polluted water mixed with concrete powder can be washed away by the sprinklers 32, 42, 52, and 62 by spraying water, and the problem that the transparent plate of the protective cover 2 becomes cloudy and cannot be seen during periods of low dew point temperatures such as winter can be solved. Also, according to the visual safety confirmation structure 1, the inside of the protective cover 2 is constantly moistened by the water sprayed from the sprinklers 32, 42, 52, and 62, improving friction and kinking of the wire of the wire saw 14, and improving the wear rate of the wire saw 14 and improving the durability of the wire saw 14.

[0047] Furthermore, according to the visual safety confirmation structure 1, the wire saw 14 can be reliably shielded by the trailing covers 5, 6 around the wire saw 14 between the main cover 3 and the fixed cover 4, which move away as the cutting by the wire saw device 10 progresses, thereby enabling the concrete structure C1 to be cut safely.

[0048] In addition, according to the visual safety confirmation structure 1, casters 33 for transportation are attached to the main body cover 3, so that the main body cover 3 can be easily transported along the road using the casters 33 for transportation to the site where the cutting work is to be performed.

[0049] The visual safety confirmation structure 1 according to the embodiment of the present invention has been described in detail above. However, the above-mentioned and illustrated embodiments are merely specific embodiments for carrying out the present invention. Therefore, the technical scope of the present invention should not be interpreted as being limited by these. [Explanation of symbols]

[0050] 1: Visual safety confirmation structure 2: Protective cover 3: Main end cover (protective cover) 30:Frame body 31: Transparent plate 32: Sprinkler 33: Caster 4: Fixed cover (protective cover) 40:Frame body 41:Transparent plate 42: Sprinkler 43: Mesh sheet 5,6: Follow-up cover (protective cover) 50,60:Frame body 51,61:Transparent plate 52,62:Sprinkler 53: Mesh sheet 54: Caster 55: Connecting hook 56: Handle 10: Wire saw device 11: Drive motor 12: Drive pulley 13a~13g: Driven pulley 14: Wire saw 15: Wire saw body 16: Rail C1: Concrete structure h1,h2:hole

Claims

1. A visual safety confirmation structure for a wire saw device, comprising: a wire saw device; and a protective cover installed around the wire saw device, the protective cover shielding the periphery of the wire saw device, and allowing visual confirmation of whether the wire saw device is rotating safely, the structure comprising: the protective cover has a drive motor for rotating the wire saw of the wire saw device, and includes a main body cover that covers the periphery of the wire saw main body that slides on a rail, a fixed cover that covers the periphery of the driven pulley that is the furthest from the wire saw main body and does not move, and a follower cover that covers between the main body cover that slides on the rail and moves away from the fixed cover as cutting progresses, The main body cover, the fixed cover, and the follower cover are each covered with a transparent plate, and are configured so that whether the wire saw device is rotating or not can be visually observed from the outside, The main cover, the fixed cover, and the follower cover of the protective cover are each provided with a sprinkler, and are configured to be able to sprinkle water so that the inside of the transparent plate does not become cloudy. A visual safety confirmation structure for a wire saw device, comprising:

2. The follower cover has a plurality of casters and is configured to be able to roll on the concrete structure to be cut using the casters.

2. The visual safety confirmation structure for a wire saw device according to claim 1 .

3. The following covers are provided in a plurality and are configured to be connectable to each other.

3. The visual safety confirmation structure for a wire saw device according to claim 2 .

4. The main body cover is equipped with casters for transportation.

2. The visual safety confirmation structure for a wire saw device according to claim 1 .

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