JP6704145B2 - Tile peeling device and tile peeling method using the same - Google Patents

Description

The present invention relates to a tile peeling device that peels a tile attached to a wall surface or the like of a structure without damage and a tile peeling method using the tile peeling device.

Conventionally, tiles are attached to the outer wall of a building such as a condominium or a building to improve the design and durability of the building. However, such tiles are made by firing clay such as porcelain tiles and earthenware tiles at high temperatures, and there is a problem in that even if the same product number is used, only the kiln to be fired has a different shade. Therefore, when renovating a building, the tiles are peeled off from the existing building as a color sample, and the color shade of the newly fired tile is adjusted.

In addition, when renovating or reconstructing existing buildings with high historical or cultural value, it is extremely requested that the outer wall tiles be peeled off and reused in order to preserve the appearance of the building. It is a thing. However, tiles such as outer wall tiles are attached to structures such as concrete structures via mortar, and the back surface that joins with the mortar has a dovetail-like shape, so the tiles will not be damaged. There was a problem that it was difficult to remove.

In order to solve such a problem, the applicant of the present application has proposed a tile peeling device capable of peeling a tile without damaging it (see Patent Document 1). The tile peeling device described in Patent Document 1 includes a gripping mechanism in which a space between a pair of upper and lower plates can be adjusted by a rotating bolt, and a rotating lever which is connected to a head of the rotating bolt and tightened. The gripping mechanism grips the edge face of the tile, which is the end face of the tile, and peels off the tile. Therefore, the tile can be easily peeled off without damage.

However, the tile peeling device described in Patent Document 1 can easily peel the tile without damaging the tile when the tightening with the rotating bolt is tightening with an appropriate force. That is, when the turning bolt is turned too much by the turning lever, the gripping force becomes too strong and the tile is chipped. On the other hand, even when the tightening force of the rotating bolt is weak, when the tile is gripped and rotated by the gripping mechanism (when it is twisted), the tile slips out of the gripping mechanism. At that time, there was a problem that the corners of the tile were chipped.

In addition, the appropriate gripping force when gripping the tile was greatly different depending on the material of the tile and the adhesive force of the tile. That is, it depends on whether the tile is a porcelain tile or a ceramic tile, and the adhesive strength of the tile such as the strength of the mortar to which the tile is attached. There was also the problem of not knowing whether to tighten the bolts.

Japanese Patent No. 6108255

Therefore, the present invention has been devised in view of the above-mentioned problems, and the purpose thereof is to provide a tile peeling device and a tile peeling device that enable anyone to easily peel the tile without damaging the tile. It is to provide a used tile peeling method.

The tile peeling device according to claim 1 has a pair of plates, and is provided with a gripping mechanism in which a space between these plates can be adjusted by a rotating bolt, and the tile is gripped by the gripping mechanism to be twisted and rotated. peeled off a tile peeling apparatus, the end faces of the tile with a force that grips across along the surface of the tile comprises a verifiable gripping force verifier whether reaches a predetermined value by the gripping mechanism The gripping force confirmation mechanism is a torque wrench attached to the rotation bolt and capable of confirming the torque to rotate the rotation bolt, and the tile gripped by the gripping mechanism by pressing the surface to which the tile is attached. A pressing mechanism that applies a rotational moment in the direction of peeling off is connected to the gripping mechanism .

A tile peeling device according to a second aspect is the tile peeling device according to the first aspect , wherein the torque wrench is a preset type torque wrench that notifies that a preset torque value is reached.

The tile peeling device according to claim 3 is the tile peeling device according to claim 1 or 2 , further comprising a guide mechanism that guides the pair of plates perpendicularly to a plate surface of each plate so as not to be displaced from each other. Is characterized by.

A tile peeling device according to claim 4 is the tile peeling device according to any one of claims 1 to 3 , wherein the rotating bolt is mounted on the pair of plates via a spring member. To do.

The tile peeling method according to claim 5 uses the tile peeling device according to any one of claims 1 to 4 to peel the tile attached to an existing structure by twisting the tile while gripping the tile. The peeling method is characterized in that the gripping force confirmation mechanism confirms the force with which the end faces of the tiles are gripped by the gripping mechanism along the surface of the tile.

A tile peeling method according to claim 6 uses the tile peeling device according to any one of claims 2 to 4 to peel a tile attached to an existing structure by twisting the tile while gripping the tile. The peeling method is characterized in that an appropriate torque value for rotating the rotating bolt is set in the torque wrench in advance and the tile is gripped by the gripping mechanism.

According to the invention described in claims 1 to 4 , it is possible to easily confirm whether or not the force for gripping the tile by the gripping mechanism is appropriate. Therefore, regardless of the skill level of the worker, the tile can be gripped with an appropriate gripping force according to the material and the adhesive force of the tile, and anyone can easily peel the tile without damaging the tile.
According to the invention described in claims 1 to 4, it is possible to judge whether or not the force for gripping the tile by the gripping mechanism is appropriate based on the torque value of the torque wrench. Therefore, it is easy to confirm the appropriate gripping force, and the confirmation can be completed in a short time.
In addition, according to the invention described in claims 1 to 4, since the pressing mechanism is provided, it is easier to rotate the tile while being held by the holding mechanism and peel the tile using the principle of leverage. .. Therefore, regardless of the skill level of the worker, anyone can easily peel off the tile without damaging the tile.

In particular, according to the invention described in claim 2 , it becomes possible to know whether or not the preset torque value has been reached without checking the torque wrench, and the tile can be peeled off in a short time. It is possible to reduce the labor cost for peeling tiles.

In particular, according to the third aspect of the invention, since the guide mechanism is provided, it is possible to reduce the risk that the gripping mechanism will be displaced and the tile will be displaced from the gripping mechanism, and further the risk of damaging the tile.

In particular, according to the invention as set forth in claim 4 , it is possible to prevent the rotation bolt and the nut from rotating together (idling) by the repulsive force of the spring material, thereby making the operation of the gripping mechanism more stable.

According to the invention of claim 5 , since the force of gripping the tile by the gripping mechanism is confirmed by the gripping force confirmation mechanism, it is possible to grip the tile with an appropriate gripping force according to the material and adhesive force of the tile. But you can easily peel off the tiles without breaking them.

According to the invention as set forth in claim 6 , since an appropriate torque value for turning the rotary bolt is set in advance in the torque wrench and the tile is gripped by the gripping mechanism, it is possible to check whether or not the preset torque value is reached. It becomes possible to understand without checking the wrench, the tile can be peeled off in a short time, and the labor cost for peeling the tile can be reduced.

It is an exploded perspective view showing each composition of the tile exfoliation device concerning a 1st embodiment of the present invention. It is a figure mainly explaining the holding mechanism of the above-mentioned tile peeling device, (a) shows before holding a tile, and (b) shows after holding. It is a perspective view which shows the torque wrench of the tile peeling apparatus same as the above. It is the front view which looked at the torque wrench same as the above in the axial direction. It is the side view which looked at the torque wrench same as the above in the direction orthogonal to the axis. It is a top view which shows a torque wrench same as the above. It is a vertical cross-sectional view which shows the torque wrench same as the above along the axial direction. It is explanatory drawing which shows the mechanism of the gear of the torque wrench same as the above. It is process explanatory drawing which shows the joint cutting process of the tile peeling method which concerns on embodiment of this invention, (a) shows the joint before cutting, and (b) has shown the joint cutting. It is process explanatory drawing which shows before the grip of the tile holding process of the tile peeling method same as the above. (A) is process explanatory drawing which shows after the grip of the tile holding process of the tile peeling method same as the above, (b) is A part detail, (c) is B part detail. It is process explanatory drawing which shows the rotation process of the tile peeling method same as the above. It is a process explanatory view showing completion of tile exfoliation of the same tile exfoliation method. It is a side view which shows the tile peeling apparatus which concerns on 2nd Embodiment of this invention. It is a front view which shows the tile peeling apparatus same as the above. It is a partially expanded view which shows the press mechanism of the tile peeling apparatus same as the above. It is process explanatory drawing which shows the rotation process of the tile peeling method which concerns on 2nd Embodiment of this invention.

Hereinafter, an embodiment for carrying out a tile peeling apparatus and a tile peeling method according to the present invention will be described in detail with reference to the drawings.

[First Embodiment]
<Tile peeling device>
First, the configuration of the tile peeling device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 8. FIG. 1 is an exploded perspective view showing each configuration of the tile peeling device 1 according to the first embodiment of the present invention. 2A and 2B are views for explaining the gripping mechanism 2 of the tile peeling apparatus 1, where FIG. 2A shows the tile before gripping and FIG. 2B shows the tile after gripping.

The tile peeling apparatus 1 according to the first embodiment of the present invention is a tool for gripping a tile and peeling it from an existing structure. As shown in FIG. 1 and FIG. 2, the tile peeling apparatus 1 includes a gripping mechanism 2 in which a space between a pair of plates can be adjusted by a rotating bolt 20, and a force with which the gripping mechanism 2 grips a tile reaches a predetermined value. A torque wrench 3, which is a gripping force confirmation mechanism capable of confirming whether or not it is provided, is provided. The tile peeling device 1 also includes a handle 4 attached to the gripping mechanism 2.

In addition, the tile peeling apparatus 1 according to the embodiment of the present invention is supposed to peel off (peel) 45 two-piece outer wall tiles from the outer wall of a building made of a concrete structure. Of course, the size is not limited to the 45-piece outer wall tile, and the size of the gripping mechanism 2 described below may be changed according to the size of the tile to be peeled off.

(Gripping mechanism)
The gripping mechanism 2 includes an upper plate 21 and a lower plate 22, which are a pair of upper and lower plates, and a rotating bolt 20 that is screwed into the upper plate 21 and the lower plate 22 to adjust the distance between the upper plate 21 and the lower plate 22. .. This gripping mechanism 2 is a mechanism for gripping (sandwiching) a tile between an upper plate 21 and a lower plate 22. The gripping mechanism 2 also includes a guide mechanism 5 that guides the forward and backward movements of the upper plate 21, the lower plate 22, and the rotary bolt 20.

Each of the upper plate 21 and the lower plate 22 is made of a thick steel plate having a rectangular shape, and the clamp blades 23 and 24 for sandwiching the tile along one lateral end are hexagon socket head bolts. Each is joined. Thus, the upper plate 21 and the lower plate 22 and the clamp blades 23 and 24 are provided separately from each other in order to ensure a thinness that can be inserted into tile joints and a required strength. For example, the joint width of the 45-piece outer wall tile is about 5 mm, and if the upper plate 21 and the lower plate 22 themselves are made too thin accordingly, they will bend and the tile cannot be grasped well.

Further, a bolt hole 21a for inserting the turning bolt 20 is formed in the center of the plate surface of the upper plate 21, and a groove for screwing with the turning bolt 20 is provided in the center of the plate surface of the lower plate 22. A rectangular opening 22a for mounting the screw member 25 is formed. The screw member 25 is made of a steel material having a high degree of wear resistance that is equivalent to that of the rotating bolt 20.

Instead of mounting the screwing member 25, which is a separate member, on the lower plate 22, it is also possible to directly cut the groove to be screwed with the rotating bolt 20 on the lower plate 22. You may substitute the nut stuck to.

The clamp blades 23 and 24 are made of a thin rectangular steel plate which is thinner and harder than the upper plate 21 and the lower plate 22, and the tip cross section is thickened so that the sandwiched tiles do not slip out. Tip blade portions 23a, 24a are formed so as to project inward between the two.

(Rotating bolt)
The rotating bolt 20 is inserted into a bolt hole 21a of the upper plate 21 and a screwing member 25 attached to the lower plate 22 to connect the two together, and is rotated by a screw thread formed on the outer peripheral surface thereof to separate the two. Has a function of adjusting by enlarging or reducing.

Further, as shown in FIG. 2, a coil spring S, which is a spring material, is attached to the lower end portion of the rotary bolt 20 with one end fixed by a nut and a washer. That is, the rotary bolt 20 and the lower plate 22 are screwed and joined to the lower surface of the lower plate 22 in a state where the lower plate 22 is in contact with the coil spring S and the repulsive force of the spring is applied. Therefore, an appropriate biasing force (pressing force) is applied by the coil spring S, and it is possible to prevent the rotation bolt 20 and the nut from rotating together and idling.

(Guide mechanism)
The guide mechanism 5 is fixed to a pair of left and right guide poles 50 projecting from the lower surface of the upper plate 21, and a pair of left and right poles fixedly mounted on the upper surface of the lower plate 22 and inserted and guided while slidingly contacting the guide poles 50. It is composed of a receiver 51 and the like. Further, as shown in FIG. 2, the lower plate 22 is provided with a pole hole 22b for inserting the guide pole 50 at a position where the pole receiver 51 is fixedly provided.

The guide mechanism 5 is a guide mechanism for smoothly performing the vertical movement of the gap adjustment of the gripping mechanism 2, and is perpendicular to the plate surfaces of these plates so that the upper plate 21 and the lower plate 22 do not shift from each other. It has the function of guiding to. That is, as shown in FIG. 2, in the guide mechanism 5, the guide pole 50 and the pole receiver 51 are in sliding contact with each other when the distance between the upper plate 21 and the lower plate 22 is narrowed or widened. As a result, the guide mechanism 5 prevents the upper plate 21 and the lower plate 22 from being relatively displaced in the horizontal direction and the relative rotation of the upper plate 21 and the lower plate 22.

(Handle)
The handle 4 is composed of a mounting plate 40 and a handle body 41 protruding from the lower surface of the mounting plate 40. The mounting plate 40 is joined to the upper plate 21 with hexagon socket head cap screws.

The handle body 41 is a pipe material or a rod material having a circular cross section or an elliptical shape with a diameter (for example, 20 mm to 40 mm) that can be easily gripped by one hand, and is provided on the lower surface of the mounting plate 40 so as to project downward. Of course, the handle body 41 may be provided so as to project upward on the upper surface of the mounting plate 40. In that case, the mounting plate 40 should be joined to the lower plate 22 in order to accommodate the entire apparatus in a compact size. Is preferred.

It should be noted that the mounting plate 40 is attached to each of the upper plate 21 and the lower plate 22, and the handle main body 41 can be configured to be expandable and contractable by fitting two pipes.

(Grip force confirmation mechanism)
Next, the gripping force confirmation mechanism according to the embodiment of the present invention will be described with reference to FIGS. 3 to 8. FIG. 3 is a perspective view showing a torque wrench 3 which is a gripping force confirmation mechanism of the tile peeling apparatus 1. 4 is a front view of the torque wrench 3 viewed in the axial direction, FIG. 5 is a side view of the torque wrench 3 viewed in the direction orthogonal to the axis, and FIG. 6 is a plan view of the torque wrench 3. Is. 7 is a vertical cross-sectional view showing the torque wrench 3 along the axial direction, and FIG. 8 is an explanatory view showing the mechanism of the gear 34 of the torque wrench 3.

The gripping force confirmation mechanism according to the present invention is a mechanism for confirming whether or not the force for gripping the tile by the gripping mechanism 2 has reached a predetermined value. As shown in FIGS. 3 to 8, the gripping force confirmation mechanism according to the present embodiment is a torque wrench 3 that is mounted on the above-described rotation bolt 20 and that can confirm the torque for rotating the rotation bolt 20. Here, the predetermined value is a force determined according to the material of the tile and whether the tile to be gripped is a porcelain tile or the adhesive force of the tile (strength of the applied mortar or the like). Therefore, this predetermined value should be such that the tile is not damaged even when it is gripped, and the gripping force is high enough to support the mortar as an adhesive material from the structure without peeling. It is set in consideration.

The torque wrench 3 that is the gripping force confirmation mechanism according to the present embodiment is a coil spring type torque wrench that adjusts the torque with a coil spring, and when the preset torque value is reached, the user is notified by a clicking sound or vibration. It is a preset type signal type torque wrench.

Of course, the torque wrench according to the present invention is not limited to the signal type, and may be a single-purpose type in which the main body has no scale and a torque wrench tester or the like is required to set the torque. Further, the torque wrench according to the present invention is not limited to a preset type, but a plate type that detects a torque by the deflection of a beam (beam), a dial type that detects a torque by the twist angle of a cylinder, and a digital type that detects a torque by a sensor. For example, a direct-reading torque wrench can also be used. In short, the torque wrench according to the present invention is only required to be able to confirm by some method whether or not the torque applied to the rotating bolt 20 has reached a predetermined value.

Specifically, as shown in FIGS. 3 to 8, the torque wrench 3 includes a wrench body 30 which is a housing of the torque wrench 3 as a whole. The wrench body 30 is composed of a front body 31 on the side where the rotary bolt 20 is fitted and a rear body 32 on the opposite side.

The front body 31 is provided with a cylindrical sleeve 33 into which the rotary bolt 20 is fitted or connected, a gear 34 fixed to the sleeve 33 and rotatable in both directions, and the like. As shown in FIG. 8, a slidable pin 35 is in contact with the gear 34, and the pin 35 is pressed toward the gear 34 side by a spring 37.

When the force for pushing the pin 35 out by the gear 34 reaches the set torque value, it exceeds the pressing force of the opposing spring 37, so the pin 35 slides in the direction away from the gear 34. Say. Therefore, the gear 34 idles, and the rotating bolt 20 cannot be rotated via the sleeve 33.

Further, a plurality of spheres 36, which are rollers, and a coil spring 39 that urges the rear main body 32 toward the front main body 31 are mounted on the rear main body 32. When the rear body 32 is pulled in the direction of the arrow in FIG. 7 against the urging force of the coil spring 39, the spherical body 36 rolls into the notched recess 32 a of the rear body 32 and fits therein. Therefore, the rear body 32 is locked by the sphere 36 and does not return to the front body 31, and the pin 35 together with the spring 37 slides in the direction of the arrow in FIG. 7 to be in a free state. That is, in the torque wrench 3, the gear 34 and the sleeve 33 are rotatable, but the force cannot be transmitted, and the rotating bolt 20 cannot be rotated.

An extension rod 38 for extending the length of the wrench body 30 to gain a moment when turning the rotary bolt 20 is screwed to the rear end of the rear body 32 so that the length can be adjusted.

As the gripping force confirmation mechanism according to the embodiment of the present invention, the preset type signal type torque wrench has been described as an example, but the rotating bolt 20 may be tightened with an electric tool having a torque limiter. In short, the gripping force confirmation mechanism according to the present invention may be any mechanism as long as it can confirm the torque for tightening the turning bolt 20 and cannot turn the turning bolt 20 when an appropriate torque value is reached. That is, the gripping force confirmation mechanism according to the present invention may be any mechanism that can confirm whether or not the gripping force of the gripping mechanism 2 for gripping a tile has reached a predetermined value.

<Tile peeling method>
Next, a tile peeling method using the tile peeling device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 9 to 13. An example will be described in which the 45 two-piece outer wall tile T attached to the outer wall W of a building which is an existing concrete structure is peeled off from the outer wall W by using the tile peeling device 1 described above.

(1) Joint cutting step FIG. 9 is a process explanatory view showing the joint cutting step of the tile peeling method according to the embodiment of the present invention, in which (a) shows before joint cutting and (b) shows after joint cutting. There is. As shown in FIG. 9, in the tile peeling method according to the present embodiment, first, a joint cutting step of cutting a groove serving as a cut at the joint between the tiles T is performed.

As shown in FIG. 9A, the tile T is adhered to the outer wall W via the mortar M, and the joint material is filled between the tile T and the tile T from above. Therefore, in order to peel off the tiles T one by one, it is necessary to form a groove for separating the mortar M at the joints on the four circumferences between the adjacent tiles T.

In this step, a cutting tool such as a diamond cutter is used to form a groove reaching the concrete portion of the outer wall W at the joints on the four circumferences of the tile T to be peeled off, as shown in FIG. 9B.

Although the tile T is attached to the outer wall W which is an existing concrete structure through the mortar M which is an attachment mortar, the adjustment mortar for adjusting the unevenness of the outer wall W is attached and then the attachment mortar is used. The tile T may be attached with a certain mortar M. Further, it goes without saying that the present invention can be applied even when the tile T is directly embedded in the formwork of precast concrete and the tile T is directly attached.

(2) Tile gripping step FIG. 10 is a process explanatory view showing a tile gripping step before gripping in the tile peeling method according to the present embodiment, and FIG. 11A shows a step after gripping the tile gripping step. FIG. (B) shows details of the A section, and (c) shows details of the B section.

Next, as shown in FIGS. 10 and 11, in the tile peeling method according to the present embodiment, a tile gripping step of gripping the tile T by the gripping mechanism 2 of the tile peeling device 1 is performed.

Specifically, first, as shown in FIG. 10, the clamp blades 23 and 24 of the gripping mechanism 2 are inserted into the grooves formed in the previous step.

Next, the torque wrench 3 is used to rotate the rotary bolt 20 to reduce the distance between the upper plate 21 and the lower plate 22 of the gripping mechanism 2 of the tile peeling device 1 so that the clamp blade 23 and the clamp blade 24 contact the end surface of the tile T. The tiles T are brought into contact with each other and sandwiched between the upper and lower sides.

At this time, the force of gripping the tile T by the gripping mechanism 2 is confirmed by confirming the torque value of turning the rotating bolt 20 with the torque wrench 3 which is the gripping force confirmation mechanism.

In the conventional tile peeling device described in Patent Document 1, the rotating bolt is tightened by a rotating lever such as a ratchet wrench. Therefore, even though it is known that the tightening force needs to be changed according to the material of the tile T, the gripping force of the tile T cannot be quantitatively grasped by a simple method. In addition, tightening with the turning lever had a strong technical element as perceived by the worker, and the incentive to grasp an appropriate gripping force did not work. Therefore, an appropriate gripping force itself according to the material of the tile has not been grasped.

However, according to the tile peeling device 1 described above, it is possible to confirm an appropriate torque value for turning the rotating bolt 20. Therefore, by an experiment or the like, an appropriate gripping force for gripping the tile T by the gripping mechanism 2 can be replaced with a torque value and can be grasped in advance according to the material, size, shape, adhesive force, etc. of the tile T. Becomes Therefore, it is possible to replace the appropriate gripping force according to the material of the tile T, the adhesive force and the like with the torque value to create a manual or the like and set it in advance. As a result, anyone can easily peel off the tile T without damaging the tile T, regardless of the skill level of the worker.

For example, the outer wall W, which is an existing concrete structure, is a ready-mixed (premix) mortar using general lightweight aggregate (having an adhesive strength of about 1.30 N/mm ² after the curing period elapses). A case where 45 two-piece outer wall tiles T which are porcelain tiles are pasted through the mortar M will be exemplified. When the appropriate gripping force in such a case is expressed as an appropriate torque value set in the torque wrench 3 of the tile peeling device 1, when the nominal diameter of the rotating bolt 20 is 16 mm, the tile T can be worked without being damaged. The possible range is 10.0 to 20.0 N·m.

Moreover, the torque wrench 3 of the above-described tile peeling device 1 is a preset type signal type torque wrench. Therefore, in the tile peeling method according to the present embodiment, an appropriate torque value for turning the rotating bolt 20 so as to obtain an appropriate gripping force is set in the torque wrench 3 in advance, and then a clicking sound is generated. , Tighten the rotating bolt 20 with the torque wrench 3. With this alone, an appropriate gripping force for gripping the tile T by the gripping mechanism 2 can be achieved.

For this reason, it becomes possible to know whether or not the preset torque value has been reached without having to read the torque value with the torque wrench 3 one by one, and this step can be performed in a shorter time, and tile peeling can be prevented. Labor costs can be reduced.

(3) Rotating Step FIG. 12 is a process explanatory diagram showing a rotating process of the tile peeling method according to the present embodiment, and FIG. 13 is a process explanatory diagram showing completion of tile peeling of the tile peeling method according to the present embodiment. is there. As shown in FIG. 12, in the tile peeling method according to the present embodiment, a rotating process of twisting the tile T while gripping the tile T by the gripping mechanism 2 of the tile peeling device 1 is performed.

Specifically, with the clamp blade 23 and the clamp blade 24 gripping the tile T up and down, the extension rod 38 of the torque wrench 3 is gripped and rotated in the vertical direction or the like, and a crack occurs between the pasting mortar M and the outer wall W. And the tile T is peeled off.

At this time, as shown in FIG. 11, the clamp blade 23 and the clamp blade 24 gripping the tile T are formed with tip blade portions 23a, 24a having a thickened tip cross section and protruding inward. .. Therefore, when rotating in the vertical direction in this step, the tip blade portions 23a and 24a scoop up, and the sandwiched tile T does not slip out and come off and can be reliably gripped.

When this step is performed, the state shown in FIG. 13 is reached, and the tile peeling work by the tile peeling method according to the present embodiment is completed.

According to the tile peeling apparatus 1 and the tile peeling method using the tile peeling apparatus 1 according to the first embodiment of the present invention described above, it is confirmed whether the tile T is gripped with an appropriate gripping force by turning the rotating bolt 20. It can be confirmed by whether or not the torque value at that time has reached a predetermined value. Therefore, the tile T can be gripped with an appropriate gripping force according to the material and adhesive force of the tile T, and anyone can easily peel off the tile without damaging the tile.

In particular, even if the tile T to be peeled off is attached to an existing building of high historical and cultural value and its strength has deteriorated due to deterioration over time, by confirming the appropriate gripping force of one tile , You can tear off historically and culturally valuable tiles without damaging them.

Further, since the torque wrench 3 which is a preset type signal torque wrench is used, it is possible to confirm whether or not the predetermined value is reached by merely setting an appropriate torque value in advance. Therefore, it becomes possible to know the torque value without checking the torque value one by one, and the tile T can be peeled off in a short time. Therefore, the labor cost for peeling tiles can be reduced.

[Second Embodiment]
<Tile peeling device>
Next, the configuration of the tile peeling device 1′ according to the second embodiment of the present invention will be described with reference to FIGS. FIG. 14 is a side view showing the configuration of the tile peeling device 1′ according to the second embodiment of the present invention, and FIG. 15 is a front view showing the tile peeling device 1′. 16 is a partially enlarged view showing the pressing mechanism 6 of the tile peeling device 1'.

The tile peeling device 1 ′ according to the second embodiment of the present invention is different from the tile peeling device 1 described above mainly in that a pressing mechanism 6 is added and the tile is attached to the rotating bolt 20. The point is that the coil spring S is mounted above the lower plate 22. Therefore, this difference will be mainly described, the same configurations will be denoted by the same reference numerals, and description thereof will be omitted.

The tile peeling device 1 ′ according to the second embodiment includes the above-mentioned gripping mechanism 2, the torque wrench 3, and the like, like the tile peeling device 1 described above. However, unlike the tile peeling apparatus 1 described above, the tile peeling apparatus 1 ′ does not include the handle 4, and the extension rod 38 of the torque wrench 3 is grasped and used.

Further, the tile peeling apparatus 1'includes a pressing mechanism 6 that "pries" when a tile is peeled off from a concrete structure or the like by pressing the surface on which the tile is attached and applying a rotational moment. The pressing mechanism 6 includes a pressing plate 60 made of a thick steel plate, a pressing bolt 61 that is screwed through the center of the pressing plate 60 and penetrates through the pressing plate 61, and a three-dimensionally swinging head mounted on the tip of the pressing bolt 61. It is composed of a possible free cap 62 and the like.

As shown in FIG. 16, the pressing plate 60 is a plate made of a steel plate having a rectangular shape in a side view whose corners are chamfered at the lower end. It is connected by bolting to the edge of the (far side).

The pressing bolt 61 is a bolt with a hexagonal hole in which a hexagonal hole is formed on the rear end side, and can be rotated by an electric tool to press the tile surface.

In addition, a universal cap 62 is attached to the tip of the pressing bolt 61 (the end on the tile surface side). Therefore, as will be described later, even when the tile peeling device 1 ′ starts rotating by pressing the tile surface with the pressing mechanism 6, the tile surface can be reliably pressed with the pressing bolt 61 without slipping.

Further, as shown in FIG. 15, in the tile peeling device 1 ′, unlike the tile peeling device 1 described above, a coil spring S that prevents the rotating bolt 20 from idling is mounted above the lower plate 22. ing. Even with such a configuration, it is apparent that the coil spring S can apply an appropriate biasing force (pressing force) to prevent the rotation bolt 20 from idling. As shown in FIG. 15, since the pivot bolt 20 of the tile peeling device 1'is formed on the lower plate 22 and screwed into the thread groove, a nut is not required. In this way, by housing the coil spring S inside the gripping mechanism 2 of the rotating bolt 20, it is possible to achieve a compact size of the tile peeling device 1'.

<Tile peeling method>
Next, a tile peeling method using the tile peeling device 1′ according to the second embodiment of the present invention will be described. The difference from the above-mentioned tile peeling method is mainly in the rotating step, so that point will be described and the description of the other steps will be omitted. Further, similar to the above, an example is shown in which 45 two-piece outer wall tiles T attached to the outer wall W of a building that is an existing concrete structure are peeled off from the outer wall W by using the tile peeling device 1′. And explain.

(3) Rotation Step FIG. 17 is a process explanatory view showing a rotation step of the tile peeling method according to this embodiment. As shown in FIG. 17, in the tile peeling method using the tile peeling apparatus 1′ according to the second embodiment, the tile surface is held by the pressing mechanism 6 while the tile T is held by the holding mechanism 2 of the tile peeling apparatus 1′. A rotation process of pressing and twisting to rotate the tile peeling device 1'is performed.

Specifically, the pressing bolt 61 of the pressing mechanism 6 is rotated in a state where the clamp blade 23 and the clamp blade 24 hold the tile T up and down, and the pressing bolt 61 is extended to the outer wall W side to extend the tile surface (to the outer wall W). The tile peeling device 1'is rotated in the vertical direction by pressing the surface of the attached tile T). By this rotation, a crack is generated between the attached mortar M and the outer wall W, and the tile T is peeled off.

The pressing bolt 61 may be rotated either manually or using an electric tool. However, it is preferable to use an electric tool because it requires less force and anyone can easily peel off the tile.

According to the tile peeling apparatus 1'and the tile peeling method using the tile peeling apparatus 1'according to the second embodiment of the present invention described above, in addition to the above-described function and effect, the tile surface is pressed by the pressing mechanism 6 and the tile peeling apparatus 1' Is rotated to cause a crack between the attached mortar M and the outer wall W to peel off the tile T. Therefore, at the moment of peeling the tile T, which requires the most force, the pressing mechanism 6 can surely press the tile surface to peel it. Therefore, regardless of the skill level of the worker, anyone can easily peel the tile without damaging the tile.

Moreover, according to the tile peeling device 1', it is possible to use the electric tool at the moment of peeling the tile T, which requires the most force. Therefore, anyone can easily peel off the tile.

In addition, in the tile peeling device 1 ′ according to the second embodiment, the coil spring S that prevents the rotating bolt 20 from idling is mounted above the lower plate 22. For this reason, the coil spring S can be housed inside the gripping mechanism 2, and the overall size of the tile peeling device 1 ′ can be reduced.

The tile peeling device 1 according to the first embodiment of the present invention, the tile peeling device 1 ′ according to the second embodiment, and the tile peeling method using the tile peeling device 1 ′ have been described above in detail. However, any of the above-described or illustrated embodiments is merely an embodiment embodied in carrying out the present invention, and the technical scope of the present invention should not be limitedly interpreted by these. It is a thing.

1, 1': Tile peeling device 2: Gripping mechanism 20: Rotating bolt 21: Upper plate 21a: Bolt hole 22: Lower plate 22a: Opening 22b: Ball hole 23, 24: Clamp blades 23a, 24a: Tip blade portion 25 : Screw member 3: Torque wrench (Grip force confirmation mechanism)
30: Wrench body 31: Front body (wrench body)
32: Rear body (wrench body)
32a: Notch recess 33: Sleeve 34: Gear 35: Pin 36: Sphere 37: Spring 38: Extension rod 39: Coil spring (spring material)
4: Handle 40: Mounting plate 41: Handle body 5: Guide mechanism 50: Guide pole 51: Pole receiver 6: Pushing mechanism 60: Pushing plate 61: Pushing bolt 62: Flexible cap S: Coil spring (spring material)
M: Paste mortar (mortar)
T: Exterior wall tile (tile)
W: Outer wall (concrete structure: existing structure)

Claims (6)

A tile peeling device that has a pair of plates, and is provided with a gripping mechanism that can adjust the distance between these plates with a rotating bolt, and twists and peels off the tiles while gripping the tiles by the gripping mechanism,
With a gripping force confirmation mechanism capable of confirming whether or not the gripping mechanism sandwiches the end faces of the tiles along the surface of the tile and reaches a predetermined value ,
The gripping force confirmation mechanism is a torque wrench that is attached to the rotation bolt and can confirm the torque for rotating the rotation bolt,
The tile peeling device, wherein a pressing mechanism that presses the surface on which the tile is attached and applies a rotational moment in a direction of peeling the tile gripped by the gripping mechanism is connected to the gripping mechanism. The tile peeling device according to claim 1 , wherein the torque wrench is a preset type torque wrench that notifies that a preset torque value is reached. The tile peeling apparatus according to claim 1 or 2 , further comprising a guide mechanism that guides the pair of plates perpendicularly to a plate surface of each plate so as not to shift from each other. The rotating bolt, tiles peeling device according to any one of claims 1, characterized in that via a spring member is mounted on the pair of plates 3. A tile peeling method for peeling by using the tile peeling device according to any one of claims 1 to 4 to pry the tile attached to an existing structure in a gripped state, and to rotate the tile.
The tile peeling method, wherein the gripping force confirmation mechanism confirms the force with which the gripping mechanism sandwiches the end faces of the tile along the surface of the tile to grip. A tile peeling method for peeling by using the tile peeling device according to any one of claims 2 to 4 to pry the tile attached to an existing structure in a gripped state and rotate the tile.
A tile peeling method, wherein an appropriate torque value for turning the rotating bolt is set in the torque wrench in advance, and the tile is gripped by the gripping mechanism.

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