JP6780166B2 - Tatami table folding device - Google Patents

Description

The present invention relates to a tatami mat folding device for inwardly bending the side sides (upper front side side and lower front side side) of the tatami mat used for rimless tatami mats. The present invention relates to a tatami mat folding device for inwardly bending the side sides (upper front side side and lower front side side) of the tatami mat surface in the direction along the tatami floor.

Conventionally, with regard to tatami mats, so-called "rimless tatami mats", which do not have tatami mats, are widely used in condominiums and the like in consideration of design, etc., instead of ordinary tatami mats having tatami mats. It has become like.

In this case, as shown in FIG. 30, in order to manufacture such a borderless tatami mat 201, along the side sides of the tatami floor 206 (upper front side side 206a and lower front side side 206b), It is necessary to bend the tatami mat 200 at an angle of about 90 ° or more so as to be along the side surface 208 of the tatami floor 206.
In FIG. 30, for convenience of explanation, only one side is shown.

That is, as shown in FIG. 30, the rush stem of the tatami mat 200 is bent along the tatami floor (direction of the rush) A, and the side side 202 of the tatami table 200 is bent along the side surface 208 of the tatami floor 206. Then, the bent side side 210 is sewn to the side surface 208 or the back surface 212 of the tatami floor 206, or fixed with an adhesive or tape.

By the way, in such a case, if only the tatami mat 200 can be cut into a predetermined size in advance and the rush stalk of the tatami mat 200 can be bent in the direction A along the tatami floor (the direction of the rush), there are various types. , The combination and size of the tatami floor 206 and the tatami table 200 can be accommodated, which is very convenient.

In this case, as shown in FIG. 31, the rush stems of the tatami mat table 200 are oriented along the tatami floor (direction of the rush) A, and the side sides 202 on both sides of the tatami mat table 200 are simultaneously along the side surfaces of the tatami floor. If it can be bent into a rush, work efficiency will be improved.
In FIG. 31, for convenience of explanation, only one side side 202 of the tatami mat table 200 is shown.

However, as shown in FIG. 32, the sill of the room is not necessarily 100% square or rectangular, so when laying tatami mats, the upper front side is finished in a straight line and the lower front side is squeezed so as to fit the sill. Then finish the tatami mat and spread it. Therefore, in the plan view shape of tatami mats, the side sides on the upper front side and the side sides on the lower front side facing each other are not completely parallel.

Therefore, it is necessary to bend the side sides 202 on both sides of the tatami mat table 200 in consideration of the shape of the tatami mat (tatami floor) in a plan view.

Therefore, in Patent Document 1 (Patent No. 5140612), as shown in the schematic view of FIG. 33, a tatami mat folding device 300 is proposed.

That is, as shown in FIG. 33, the tatami mat folding device 300 of Patent Document 1 refers to the upper front shaping portion 306 and the upper front shaping portion 306 that move horizontally along the rail 304 provided in the device frame 302. It is composed of a lower front shaping portion 308 that rotates horizontally.

Then, the lower front shaping portion 308 is axially attached to the device frame 302 or the rail 304 by the vertical axis 310. A swivel base 312 that can be swiveled horizontally around the vertical axis 310 is provided, and by placing the lower front side of the tatami mat on the upper surface of the swivel base 312 and swirling, the lower front side of the tatami mat is placed under the tatami floor. It can be folded into a shape that matches the front side.

Japanese Patent No. 5140612

However, in the tatami mat folding device 300 of Patent Document 1, since the lower front shaping portion 308 is axially attached to the device frame 302 or the rail 304 by the vertical axis 310, the lower front shaping portion 308 is provided on the device frame 302. It is a structure that cannot be horizontally moved along the rail 304.

For this reason, tatami mats with different widths in the stile direction (in the case of 1 tatami mat, tatami mats with different widths in the direction of the short side) can be freely accommodated, and the side sides of the tatami mat table (upper front side side and lower side). It is difficult to bend the front side).

Further, the tatami mat folding device 300 of Patent Document 1 cannot cope with a change in the thickness of the tatami mat (tatami floor).

That is, as shown in FIG. 34, when the tatami mat table 200 is thick, it is the distance L1 between the bending reference position A1 on the upper front side and the bending reference position B1 on the lower front side.

On the other hand, as shown in FIG. 34, when the thickness of the tatami mat table 200 is thin, the distance L2 between the bending reference position A2 on the upper front side and the bending reference position B2 on the lower front side is L1 <L2. There is a need to.
That is, when the tatami mat 200 is to be bent with the same dimensions, the position of the folding ruler is changed to the position of the upper front side bending reference position A1 and the lower front side bending reference position B1 when the tatami mat table 200 is thick. When the thickness of the tatami mat 200 is thin, it must be arranged at the bending reference position A2 on the upper front side and the bending reference position B2 on the lower front side.

The reason is that when the thickness of the tatami mat table 200 is changed in this way, the bending position is changed because the position of the bending line 203 on the upper front side is exactly rush as shown in FIGS. 31 to 33. This is because, as shown in FIG. 32, it is necessary to improve the appearance of the position of the upper side side of the upper front side when the tatami mats are spread so as to be at the seam position of the stem.

Therefore, in the tatami mat folding device 300 of Patent Document 1, since the lower front shaping portion 308 has a structure that cannot be horizontally moved, the distance between L1 and L2 can be freely adjusted when the thickness of the tatami mat table 200 changes. It will not be possible to deal with it.

Further, particularly when the thickness of the tatami floor 206 is thin, as shown in FIG. 35 (A), the remaining portion 205 of the side side 202 of the tatami table 200 is bent along the side surface 208 of the tatami floor 206. The bent side side 210 is sewn to the back surface 212 of the tatami floor 206 or fixed with an adhesive.
Although not shown for convenience of explanation, the tatami floor is usually formed so that the front side is wide and the back side is narrow.

Therefore, as shown in FIG. 35 (B), the side side 202 of the tatami mat table 200 needs to be bent in two stages of the first bending reference position C1 and the second bending reference position C2. In the tatami mat folding device 300, the lower front shaping portion 308 has a structure that cannot be horizontally moved. Therefore, when the tatami mat (tatami floor) is thin, the first bending reference position C1 and the second bending reference position It cannot be adjusted so that it can move freely to the position of C2, and it cannot correspond to it.

Further, in the tatami mat folding device 300 of Patent Document 1, a complicated structure is required for the lower front shaping portion 308 to be axially attached to the device frame 302 or the rail 304 by the vertical axis 310, which requires complicated assembly work. , The number of parts increases, and cost and labor are required.

In view of this situation, the present invention can bend only the tatami mat in advance in the direction along the tatami floor (direction of the rush), and the upper front side of the tatami mat can be tatami matted. It can be folded into a shape that matches the upper front side of the floor, and at the same time, the lower front side of the tatami mat can be folded into a shape that matches the lower front side of the tatami floor. It is an object of the present invention to provide a tatami mat folding device having excellent properties and improved work efficiency.

Further, according to the present invention, even for tatami mats having different widths in the stile direction of tatami mats, and when the thickness of the tatami mat table 200 changes, the bending reference position A on the upper front side and the bending reference position B on the lower front side The distance between the tatami mats can be freely adjusted, and various types of tatami floors and tatami mats can be combined and sized. With a relatively simple structure, the tatami mats are extremely convenient and versatile. It is an object of the present invention to provide a folding device.

Further, in the present invention, especially when the thickness of the tatami floor 206 is thin, the side side 202 of the tatami mat table 200 is bent in two stages of the first bending reference position C1 and the second bending reference position C2. An object of the present invention is to provide a tatami mat folding device that can be adjusted so as to freely move to a position of a first bending reference position C1 and a position of a second bending reference position C2.

Further, according to the present invention, the creases (folding habits) are firmly attached, the corners are not rounded, and even when the bent portion is fixed to the side surface of the tatami floor, the so-called floating state is not formed. It is an object of the present invention to provide a tatami mat folding device capable of manufacturing a rimless tatami mat that can be fixed to a tatami mat and has a good appearance and a high commercial value.

The present invention has been invented in order to achieve the above-mentioned problems and objects in the prior art, and the tatami mat folding device of the present invention is
A tatami mat folding device for folding the side sides of the tatami mat inward.
The upper front tatami mat folding unit provided at one end on the gantry frame,
It is provided with a lower front tatami mat folding unit provided at the other end on the gantry frame.
The upper front tatami mat folding unit is configured to be horizontally movable in a direction in which the upper front tatami mat folding unit is in contact with and separated from the lower front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be horizontally movable in a direction in which the lower front tatami mat folding unit is in contact with and separated from the upper front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be rotatable in the horizontal direction .
The lower front tatami mat bending unit is configured to be rotatable in the horizontal direction around a vertical virtual axis.
The lower front tatami mat folding unit
A moving frame that horizontally moves on the gantry frame in a direction in which the upper front side tatami mat bending unit is brought into contact with and separated from the upper front folding unit.
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with a lower front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The swivel frame is guided by a first guide roller and a second guide roller on the moving frame so as to be swivel in the horizontal direction around the virtual axis .

With this configuration, the upper front side tatami mat folding unit provided at one end on the gantry frame can be used to align with the upper front side folding reference position A of the tatami mat.

In this state, the lower front tatami mat folding unit provided at the other end on the gantry frame is horizontally moved in the direction of contacting and separating from the upper front tatami mat folding unit, and the lower front tatami mat folding unit is moved horizontally. Turn and move.

Therefore, only the tatami mat can be bent in advance in the direction along the tatami floor (the direction of the rush), and the upper front side of the tatami mat matches the upper front side of the tatami floor. At the same time, the lower front side of the tatami mat can be folded into a shape that matches the lower front side of the tatami floor, making it extremely convenient and versatile, and improving work efficiency. A tatami mat folding device can be provided.

In addition, the upper front tatami mat folding unit can move horizontally in the direction of contacting and separating from the lower front tatami mat bending unit, and the lower front tatami mat folding unit can move horizontally in the direction of coming into contact with and separating from the upper front tatami mat folding unit. It is composed of.

As a result, even for tatami mats having different widths in the stile direction of tatami mats, and when the thickness of the tatami mat table 200 changes, between the bending reference position A on the upper front side and the bending reference position B on the lower front side. The distance can be freely adjusted, and various types of tatami floor and tatami mat combinations and sizes can be accommodated. With a relatively simple structure, a very convenient and versatile tatami mat folding device can be used. Can be provided.

Further, since the folding position can be changed when the thickness of the tatami mat table 200 changes, the position of the bending line on the upper front side is exactly the position of the seam of the rush stem, as shown in FIG. In addition, when tatami mats are laid out, the appearance of the position of the upper side side on the upper front side can be improved.

Further, particularly when the thickness of the tatami floor 206 is thin, the side side 202 of the tatami mat table 200 is first bent in two stages of the first bending reference position C1 and the second bending reference position C2. It is possible to provide a tatami mat folding device that can be adjusted so as to freely move to the position of the bending reference position C1 and the position of the second bending reference position C2.

With this configuration, the lower front folding table folding unit is configured to be able to rotate horizontally around the virtual axis in the vertical direction, so that the lower front shaping unit 308 is similar to the conventional tatami mat folding device 300. However, a complicated structure for axially mounting the device frame 302 or the rail 304 on the vertical axis 310 is not required, complicated assembly work is not required, the number of parts is reduced, and cost and labor are not required.

With this configuration, the swivel frame above the moving frame is the first guide roller and the second guide roller arranged on two virtual arcs with different radii about the virtual axis located on the moving frame. Guided by a guide roller, it can turn horizontally around the virtual axis.

As a result, it is very convenient that the lower front side of the tatami mat can be bent into a shape that matches the lower front side of the tatami floor by the lower front tatami mat folding mechanism provided in the swivel frame.

Moreover, unlike the conventional tatami mat folding device 300, the lower front shaping portion 308 does not require a complicated structure for axially attaching to the device frame 302 or rail 304 with the vertical axis 310, and complicated assembly work is not required. The number of parts is reduced, and cost and labor are not required.

Further, the tatami mat folding device of the present invention is characterized by including an upper front moving distance adjusting mechanism capable of setting the horizontal moving distance of the upper front tatami mat folding unit according to the thickness of the tatami mat or the thickness of the tatami mat. And.

With this configuration, the horizontal movement distance of the upper front tatami mat table bending unit can be set according to the thickness of the tatami mat by the upper front side movement distance adjustment mechanism. Therefore, the width of the tatami mat in the stile direction can be set differently. On the other hand, when the thickness of the tatami mat 200 changes, the distance between the bending reference position A on the upper front side and the bending reference position B on the lower front side can be freely adjusted and various. It is possible to provide a very convenient and versatile tatami mat folding device with a relatively simple structure that can accommodate various types of tatami floor and tatami mats and sizes.

Further, since the horizontal movement distance of the upper front tatami mat folding unit can be set according to the thickness of the tatami mat by the upper front side movement distance adjusting mechanism, the tatami mat 200 is particularly thin even when the tatami floor 206 is thin. The side side 202 of the above can be freely set to the first bending reference position C1 and the second bending reference position C2 in order to bend in two stages of the first bending reference position C1 and the second bending reference position C2. A tatami mat folding device that can be adjusted to move to can be provided.

Further, the tatami mat folding device of the present invention is
The upper front tatami mat folding unit is configured to be rotatable in the horizontal direction .
The upper front tatami mat bending unit is configured to be able to rotate horizontally around a virtual axis in the vertical direction.
The upper front tatami mat folding unit
A moving frame that moves horizontally on the gantry frame in the direction of contacting and separating from the lower front tatami mat bending unit, and
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with an upper front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The swivel frame is guided by a first guide roller and a second guide roller on the moving frame, and is configured to be swivel in a horizontal direction about the virtual axis.
Further, the tatami mat folding device of the present invention is
A tatami mat folding device for folding the side sides of the tatami mat inward.
The upper front tatami mat folding unit provided at one end on the gantry frame,
It is provided with a lower front tatami mat folding unit provided at the other end on the gantry frame.
The upper front tatami mat folding unit is configured to be horizontally movable in a direction in which the upper front tatami mat folding unit is in contact with and separated from the lower front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be horizontally movable in a direction in which the lower front tatami mat folding unit is in contact with and separated from the upper front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be rotatable in the horizontal direction.
The lower front tatami mat bending unit is configured to be rotatable in the horizontal direction around a vertical virtual axis.
The lower front tatami mat folding unit
A moving frame that horizontally moves on the gantry frame in a direction in which the upper front side tatami mat bending unit is brought into contact with and separated from the upper front folding unit.
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with a lower front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The swivel frame is guided by the first guide roller and the second guide roller on the moving frame, and is configured to be swivel in the horizontal direction around the virtual axis.
The upper front tatami mat bending unit is configured to be able to rotate horizontally around a virtual axis in the vertical direction.
The upper front tatami mat folding unit
A moving frame that moves horizontally on the gantry frame in the direction of contacting and separating from the lower front tatami mat bending unit, and
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with an upper front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The swivel frame is guided by a first guide roller and a second guide roller on the moving frame, and is configured to be swivel in a horizontal direction about the virtual axis.

With this configuration, for example, the lower front tatami mat folding unit can be used as the upper front tatami mat folding unit without turning horizontally, and the upper front tatami mat folding unit can be used by turning horizontally. As a result, it can be used as a lower front tatami mat folding unit, and it can also be used in the opposite direction, which is convenient.

With this configuration, as described above, when the upper front tatami mat folding unit is used as the lower front tatami mat folding unit by rotating it in the horizontal direction, the upper front tatami mat folding unit is vertically arranged. Since it is configured to be rotatable in the horizontal direction around the virtual axis of the direction, a complicated structure for axially attaching to the device frame 302 or the rail 304 with the vertical axis 310 like the conventional tatami mat bending device 300 is provided. It is unnecessary, complicated assembly work is not required, the number of parts is reduced, and cost and labor are not required.

With this configuration, as described above, when the upper front tatami mat bending unit is used by swiveling in the horizontal direction, the swivel frame above the moving frame can be used as the lower front tatami mat folding unit. , Guided by the first guide roller and the second guide roller arranged on two virtual arcs with different radii around the virtual axis located on the moving frame, in the horizontal direction around the virtual axis. It is possible to turn.

As a result, it is very convenient that the lower front side of the tatami mat can be bent into a shape that matches the lower front side of the tatami floor by the upper front tatami mat folding mechanism provided on the swivel frame.

Moreover, unlike the conventional tatami mat folding device 300, a complicated structure for axially attaching to the device frame 302 or rail 304 with the vertical axis 310 is not required, complicated assembly work is not required, the number of parts is reduced, and the cost is reduced. And no hassle.

Further, the tatami mat folding device of the present invention is characterized by including a lower front moving distance adjusting mechanism capable of setting the horizontal moving distance of the lower front tatami mat folding unit according to the thickness of the tatami mat or the thickness of the tatami mat. And.

With this configuration, as described above, when the upper front tatami mat folding unit is used as a lower front tatami mat folding unit by turning it in the horizontal direction, the lower front movement distance adjusting mechanism Since the horizontal movement distance of the lower front tatami mat folding unit can be set according to the thickness of the tatami mat, even for tatami mats with different widths in the tatami stile direction, or when the thickness of the tatami mat table 200 changes. , The distance between the bending reference position A on the upper front side and the bending reference position B on the lower front side can be freely adjusted, and various types of tatami floors and tatami mats can be combined and sized. With a relatively simple structure, it is possible to provide a very convenient and versatile tatami mat folding device.

Further, since the horizontal movement distance of the lower front tatami mat folding unit can be set according to the thickness of the tatami mat by the lower front movement distance adjusting mechanism, the tatami mat 200 is particularly thin even when the tatami floor 206 is thin. The side side 202 of the above can be freely set to the first bending reference position C1 and the second bending reference position C2 in order to bend in two stages of the first bending reference position C1 and the second bending reference position C2. A tatami mat folding device that can be adjusted to move to can be provided.

Further, the tatami mat folding device of the present invention is characterized in that at least one of the upper front tatami mat folding unit and the lower front tatami mat folding unit is provided with a cutting mechanism for cutting the side side of the tatami mat.

With this configuration, even for tatami mats with different widths in the stile direction, and when the thickness of the tatami floor 206 changes, it is possible to make a tatami mat of an appropriate size for folding, which is extremely convenient. Is.

According to the present invention, the upper front side tatami mat folding unit provided at one end on the gantry frame can be used to align with the upper front side folding reference position A of the tatami mat.

In this state, the lower front tatami mat folding unit provided at the other end on the gantry frame is horizontally moved in the direction of contacting and separating from the upper front tatami mat folding unit, and the lower front tatami mat folding unit is moved horizontally. Turn and move.

Therefore, only the tatami mat can be bent in advance in the direction along the tatami floor (the direction of the rush), and the upper front side of the tatami mat matches the upper front side of the tatami floor. At the same time, the lower front side of the tatami mat can be folded into a shape that matches the lower front side of the tatami floor, making it extremely convenient and versatile, and improving work efficiency. A tatami mat folding device can be provided.

In addition, the upper front tatami mat folding unit can move horizontally in the direction of contacting and separating from the lower front tatami mat bending unit, and the lower front tatami mat folding unit can move horizontally in the direction of coming into contact with and separating from the upper front tatami mat folding unit. It is composed of.

As a result, even for tatami mats having different widths in the stile direction of tatami mats, and when the thickness of the tatami mat table 200 changes, between the bending reference position A on the upper front side and the bending reference position B on the lower front side. The distance can be freely adjusted, and various types of tatami floor and tatami mat combinations and sizes can be accommodated. With a relatively simple structure, a very convenient and versatile tatami mat folding device can be used. Can be provided.

Further, since the folding position can be changed when the thickness of the tatami mat table 200 changes, the position of the bending line on the upper front side is exactly the position of the seam of the rush stem, as shown in FIG. In addition, when tatami mats are laid out, the appearance of the position of the upper side side on the upper front side can be improved.

Further, particularly when the thickness of the tatami floor 206 is thin, the side side 202 of the tatami mat table 200 is first bent in two stages of the first bending reference position C1 and the second bending reference position C2. It is possible to provide a tatami mat folding device that can be adjusted so as to freely move to the position of the bending reference position C1 and the position of the second bending reference position C2.

FIG. 1 is a perspective view schematically showing an outline of the tatami mat folding device of the present invention. FIG. 2 is a front view schematically showing an outline of the tatami mat folding device of the present invention. FIG. 3 is a top view of the tatami mat folding device of FIG. FIG. 4 is a schematic view illustrating the outline of the turning mechanism of the lower front tatami mat bending unit. FIG. 5 is a schematic exploded view of the upper front moving distance adjusting mechanism of the upper front folding unit of the tatami mat folding device of the present invention. FIG. 6 is a schematic view illustrating how to use the tatami mat folding device 10 of the present invention. FIG. 7 is a partially enlarged view of FIG. 6, which is a partially enlarged view for explaining a swirling movement state of the bending support member. FIG. 8 is a schematic view illustrating how to use the tatami mat folding device 10 of the present invention. FIG. 9 is a schematic view illustrating how to use the tatami mat folding device 10 of the present invention. FIG. 10 is a schematic view illustrating how to use the tatami mat folding device 10 of the present invention. FIG. 11 is a schematic view illustrating how to use the tatami mat folding device 10 of the present invention. FIG. 12 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 13 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 14 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 15 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 16 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 17 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 18 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 19 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 20 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 21 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 22 is a partially enlarged view showing the operation of the tatami mat folding device of the present invention. FIG. 23 is a schematic view illustrating the outline of the turning mechanism of the lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention. FIG. 24 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention. FIG. 24 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention. FIG. 26 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention. FIG. 27 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention. FIG. 28 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention. FIG. 29 is a top view of a tatami mat folding device similar to FIG. 3 of another embodiment of the tatami mat folding device 10 of the present invention. FIG. 30 is a perspective view illustrating a method of manufacturing the rimless tatami mat 201. FIG. 31 is a perspective view illustrating a bent state of the tatami mat table 200. FIG. 32 is a top view illustrating a state in which tatami mats are laid out. FIG. 33 is a schematic view illustrating the conventional tatami mat folding device 300 of Patent Document 1. FIG. 34 is a schematic view showing the relationship between the distance between the front bending reference position A and the lower front bending reference position B when the tatami mat 200 is thick and thin. FIG. 35 (A) is a schematic view showing the relationship between the folded states of the tatami mat (tatami floor 206), and FIG. 35 (B) shows the first bending reference position C1 and the first bending reference position C1 when the thickness of the tatami mat table 200 is changed. It is the schematic which shows the position of the bending reference position C2 of 2.

Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.
(Example 1)

FIG. 1 is a perspective view schematically showing an outline of the tatami mat folding device of the present invention, FIG. 2 is a front view schematically showing an outline of the tatami mat folding device of the present invention, and FIG. 2 is a top view of the tatami mat folding device, FIG. 4 is a schematic view illustrating the outline of the turning mechanism of the lower front tatami mat folding unit, and FIG. 5 is an upper front moving distance of the upper front tatami mat folding unit of the tatami mat folding device of the present invention. It is a schematic exploded view of an adjustment mechanism.

In FIGS. 1 and 2, reference numeral 10 indicates the tatami mat folding apparatus of the present invention as a whole.

The tatami mat folding device 10 of the present invention is for manufacturing a so-called "rimless tatami mat", and as shown in FIG. 31, the direction in which the rush stem of the tatami mat 200 is along the tatami floor (the rush). (Orientation) A is for bending the side side 202 of the tatami mat table 200 along the side surface of the tatami floor.

In FIG. 31, for convenience of explanation, the texture of rush in Tatami Table 200 is omitted.

Although not shown, the tatami floor is usually formed so that the front surface side is wide and the back surface side is narrow.

Further, in the tatami mat folding device 10 of the present invention, the side side 202 of the tatami mat table 200, which is the side to be folded of the tatami mat table 200, is the side in the longitudinal direction of the tatami mat table 200 when the tatami mat table 200 is for 1 tatami mat. For half tatami mats, it means a side that is perpendicular to or substantially perpendicular to the side side 204 on the stile side.

Further, the tatami mat 200 targeted by the tatami mat folding device 10 of the present invention includes, for example, a tatami mat 200 made of natural rush, a tatami mat 200 made of Japanese paper rush, and a tatami mat 200 made of resin rush. It can be applied to all tatami mats.

As shown in FIGS. 1 to 5, the tatami mat folding device 10 includes a gantry frame 12, and two pedestal frames 12 in the front-rear direction (extending in the left-right direction in FIGS. 1 to 5) are provided on the gantry frame 12. A guide rail 14 is provided.

Then, as shown in FIG. 1, an upper front side tatami mat folding unit 16 is provided on the guide rail 14 at one end on the gantry frame 12.

Further, at the other end on the gantry frame 12, a lower front side tatami mat bending unit 18 is provided on the guide rail 14.

Then, as shown by the arrow E in FIG. 1, for example, the upper front side tatami mat bending unit 16 is bent by the drive mechanism 22 (see FIGS. 2 to 3) such as the piston cylinder mechanism, the stepping motor, and the ball screw. It is configured to be horizontally movable in the direction of contact and separation with respect to the unit 18.

Similarly, as shown by an arrow E'in FIG. 1, for example, by a drive mechanism 22 such as a piston cylinder mechanism, a stepping motor, and a ball screw, the lower front side tatami mat bending unit 18 is referred to the upper front side tatami mat surface bending unit 16. It is configured so that it can move horizontally in the direction of contact and separation.

Further, as shown by an arrow J in FIG. 1, the lower front tatami mat bending unit 18 is configured to be rotatable in the horizontal direction. In the case of this embodiment, the lower front tatami mat folding unit 18 is configured to be rotatable in the horizontal direction about the virtual axis X in the vertical direction, as will be described later.

Specifically, as shown in FIGS. 1, 2, and 5, the upper front folding table folding unit 16 is placed on the guide rail 14 arranged on the gantry frame 12 with respect to the lower front folding table bending unit 18. As shown in FIG. 5, a moving frame 24 that moves horizontally by a drive mechanism 22 such as a piston cylinder attached to the gantry frame 12 is provided in the direction of contact and separation.

Further, above the moving frame 24, an upper front side tatami mat surface bending mechanism 26 is arranged.

On the other hand, similarly, as shown in FIGS. 1, 2 and 4, the lower front folding table bending unit 18 is placed on the guide rail 14 arranged on the gantry frame 12 with respect to the upper front folding table bending unit 16. A moving frame 28 that moves horizontally by a drive mechanism 22 similar to the drive mechanism 22 shown in FIG. 5 is provided in the direction of contact and separation.

Above the moving frame 28, a swivel frame 30 that is swivelably arranged is arranged around a virtual axis X in the vertical direction. Further, above the swivel frame 30, a lower front tatami mat bending mechanism 32 that swivels around the virtual axis X is provided together with the swivel frame 30.

Specifically, as shown in FIG. 4, a drive device 34 such as a drive motor is provided on the moving frame 28. A rotating gear 36 that meshes with the gear 34b of the drive shaft 34a of the drive device 34 is rotatably supported on the moving frame 28.

A first cam 38 having a substantially L shape is connected to the rotating shaft 36a of the rotating gear 36. One end of the first link member 42 is connected to one end of the first cam 38 via a connecting pin 40.

Further, as shown in FIG. 4, a shaft-shaped first coupling portion 42a provided at the other end of the first link member 42 is coupled to the first coupling portion 30a of the swivel frame 30. ..

On the other hand, one end of the second link member 44 is connected to the other end of the first cam 38 via a connecting pin 41. One end of a substantially L-shaped second cam 46 is connected to the other end of the second link member 44 via a connecting pin 43.

A shaft member 46a is provided on the second cam 46, and the second cam 46 is rotatably supported on the moving frame 28 around the shaft member 46a. Further, one end of the third link member 50 is connected to the other end of the second cam 46 via a connecting pin 48.

Further, as shown in FIG. 4, a shaft-shaped second coupling portion 50a provided at the other end of the third link member 50 is coupled to the second coupling portion 30b of the swivel frame 30. ..

Further, as shown in FIG. 4, on the moving frame 28, a first guide roller 52 and a second guide are arranged on two virtual arcs having different radii about the virtual axis X in the vertical direction. It includes a roller 54.

That is, in the vicinity of the first link member 42, a plurality of (two in this embodiment) arranged at regular intervals on the first virtual arc G1 having a radius r1 centered on the virtual axis X. ) The first guide roller 52 is arranged.

Further, in the vicinity of the third link member 50, a plurality of (two in this embodiment) arranged at regular intervals on a second virtual arc G2 having a radius r2 centered on the virtual axis X. A second guide roller 54 is arranged.

Further, in the vicinity of the first connecting portion 30a of the swivel frame 30, the first guide projecting portion 56 has an arc shape with a radius r1 centered on the virtual axis X so as to correspond to the first virtual arc G1. Is formed.

A first guide roller 52 is rotatably and slidably fitted to the outer periphery of the first guide protrusion 56 of the swivel frame 30.

Similarly, in the vicinity of the second joint portion 50a of the swivel frame 30, a second guide projecting portion having a radius r2 is formed around the virtual axis X so as to correspond to the second virtual arc G2. 58 is formed.

A second guide roller 54 is rotatably and slidably fitted to the outer periphery of the second guide protrusion 58 of the swivel frame 30.

With this configuration, as shown by the arrow in FIG. 4, by driving the driving device 34, the swivel frame 30 has the first guide roller 52 on the moving frame 28 and the swivel frame 30. Guided by the guide protrusion 56 of 1, and also guided by the second guide roller 54 of the second guide protrusion 58 and the second guide protrusion 58 of the swivel frame 30. It is configured to be rotatable around the virtual axis X.

In this case, by driving the drive device 34, the first cam 38 and the second cam 46 rotate at the same angle via the second link member 44. The first cam 38 and the second cam 46 have a radius ratio r1: of the outer circumference of the first guide protrusion 56 and the outer circumference of the second guide protrusion 58 from the virtual axis X of the guide arc. The fulcrum and the point of action are set based on r2.

As a result, as shown by the arrows J in FIGS. 1 and 4, the swivel frame 30 can be swiveled in the horizontal direction around the virtual axis X without shifting the virtual axis X.

On the other hand, in the tatami mat folding device 10 of the present invention, as shown in FIGS. 2, 3, and 5, the horizontal movement distance of the upper front tatami mat folding unit 16 can be set according to the thickness of the tatami mat. The front side movement distance adjusting mechanism 60 is provided.

Specifically, as shown in FIG. 5, an upper front side moving distance adjusting mechanism 60 is provided at one end of the gantry frame 12 at a position close to the moving frame 24 of the upper front side tatami mat surface bending unit 16. There is.

The upper front movement distance adjusting mechanism 60 includes an adjusting block 64 provided on a flange 62 fixed to one end of the gantry frame 12, and an adjusting screw 66 is screwed onto an internal screw 64a of the adjusting block 64. It is inserted so that it fits.

A contact portion 66a is formed at the tip of the adjusting screw 66 so as to face the moving frame 24 of the upper front tatami mat bending unit 16, and an adjusting knob 66b is formed at the rear end of the adjusting screw 66. It is formed.

That is, as shown by the arrow F in FIG. 5, the upper front side tatami mat bending unit 16 is arranged on the gantry frame 12 by operating the drive mechanism 22 such as the piston cylinder attached to the gantry frame 12. The moving frame 24 is horizontally moved in the direction in which the upper part of the 14 is brought into contact with and separated from the lower front folding surface bending unit 18.

After that, by turning the adjustment knob 66b at the rear end of the adjustment screw 66, the adjustment screw 66 is rotated, and by screwing with the internal screw 64a of the adjustment block 64, the contact portion 66a at the tip of the adjustment screw 66 is moved. The horizontal movement distance of the upper front tatami mat folding unit 16 can be adjusted by abutting and pushing the moving frame 24 of the upper front tatami mat folding unit 16.

With this configuration, the upper front side moving distance adjusting mechanism 60 can set the horizontal moving distance of the upper front side tatami mat bending unit 16 according to the thickness of the tatami mat.
Therefore, when the tatami mat 200 is to be bent with the same dimensions, the position of the folding ruler is changed to the position of the upper front side bending reference position A1 and the lower front side bending reference position B1 when the tatami mat table 200 is thick. When the thickness of the tatami mat 200 is thin, it can be arranged at the bending reference position A2 on the upper front side and the bending reference position B2 on the lower front side.

Therefore, even for tatami mats having different widths in the stile direction of tatami mats, when the thickness of the tatami mat table 200 changes, between the bending reference position A on the upper front side and the bending reference position B on the lower front side. The distance can be freely adjusted, and various types of tatami floor and tatami mat combinations and sizes can be accommodated. With a relatively simple structure, a very convenient and versatile tatami mat folding device can be used. Can be provided.

Further, since the folding position can be changed when the thickness of the tatami mat table 200 changes, the position of the bending line on the upper front side is exactly the position of the seam of the rush stem, as shown in FIG. In addition, when tatami mats are laid out, the appearance of the position of the upper side side on the upper front side can be improved.

Further, since the horizontal movement distance of the upper front side tatami mat surface bending unit 16 can be set according to the thickness of the tatami mat by the upper front side movement distance adjusting mechanism 60, it is shown in FIGS. 33 (A) and 33 (B). As described above, even when the thickness of the tatami floor 206 is thin, the side side 202 of the tatami table 200 is bent in two stages of the first bending reference position C1 and the second bending reference position C2. It is possible to provide a tatami mat folding device that can be adjusted so as to freely move to the position of the bending reference position C1 of 1 and the position of the second bending reference position C2.

Further, although not shown, the upper front side tatami mat folding unit 16 and the lower front tatami mat surface folding unit 18 are each provided with a cutting mechanism for cutting the side side 202 of the tatami mat 200.

With this configuration, even for tatami mats with different widths in the tatami stile direction, and when the thickness of the tatami mat (tatami floor 206) changes, the tatami mat table 200 has a size suitable for bending. It is extremely convenient.

The cutting mechanism for cutting the side side 202 of the tatami mat 200 may be such that at least one of the upper front tatami mat folding unit 16 and the lower front tatami mat folding unit 18 is provided with a cutting mechanism for cutting the side side of the tatami mat. ..

Further, since a known cutting mechanism can be used for this cutting mechanism, the details thereof will be omitted.

In this case, after cutting one side of the tatami mat with one of the cutting mechanisms, the tatami mat is inverted by an inversion mechanism (not shown) to cut the other side of the tatami mat. good.

The tatami mat folding device 10 of the present invention configured as described above is used as follows, as shown in FIGS. 6 to 11.

First, as shown in FIG. 6, the upper front tatami mat folding unit 16 and the lower front tatami mat folding unit 18 are operated by the drive mechanism 22 in accordance with the width T1 of the left stile of the tatami floor 206 to form a gantry frame. The guide rails 14 arranged on the 12 are moved in the E direction and the E'direction, respectively, and arranged at predetermined positions.

At this time, as shown in FIG. 6, the distance L3 between the outer end 24a of the moving frame 24 of the upper front tatami mat folding unit 16 and the outer end 28a of the moving frame 28 of the lower front tatami mat folding unit 18 is the tatami mat. It is set to have 200 cutting positions.

Further, as shown in FIG. 6, a bending allowance of a predetermined length is set between the cutting position of the tatami mat table 200, the bending reference position A on the upper front side, and the bending reference position B on the lower front side. The cutting position is determined so as to have T2.

Then, in this state, as shown in FIG. 7, the swivel frame 30 above the moving frame 28 is swiveled around the virtual axis X by driving the drive device 34.

At this time, the turning angle α is set to be the same as the angle α1 formed by the left stile 206c of the tatami floor 206 and the side side 206b on the lower front side of the tatami floor 206.

In this state, as shown in FIG. 8, the moving frame 24 of the upper front tatami mat folding unit 16 and the moving frame 28 of the lower front tatami mat folding unit 18 so that the back surface of the tatami mat 200 is located upward. It is placed between the upper swivel frame 30 and the upper swivel frame 30.

At this time, the upper front side side 202a, which is the upper front side of the side side 202 of the tatami mat table 200, is located on the side of the moving frame 24 of the upper front side tatami mat table bending unit 16, and is also on the lower front side of the side side 202 of the tatami mat table 200. The lower front side side 202b is arranged so as to be located on the side of the moving frame 28 of the lower front tatami mat folding unit 18.

In this state, the side side 202 of the tatami mat 200 is cut by the cutting mechanism for cutting the side side 202 of the tatami mat 200, which is arranged in each of the upper front side tatami mat folding unit 16 and the lower front tatami mat surface folding unit 18.

Next, the tatami mat 200 is gripped by a gripping mechanism (not shown) and slightly lifted upward from the moving frame 24 of the upper front tatami mat folding unit 16 and the swivel frame 30 above the moving frame 28 of the lower front tatami mat folding unit 18. In the state of

In this state, the upper front folding table bending unit 16 and the lower front folding table bending unit 18 are moved on the guide rail 14 arranged on the gantry frame 12 by operating the drive mechanism 22 and arranged at a predetermined position. ..

That is, as shown in FIG. 9, the outer end portion 24a of the moving frame 24 of the upper front folding table bending unit 16 is located at the bending reference position A on the upper front side, and is outside the moving frame 28 of the lower front folding table bending unit 18. The end 28a is located at the lower front bending reference position B.

At this time, the upper front side moving distance adjusting mechanism 60 adjusts the horizontal moving distance of the upper front side tatami mat surface bending unit 16 according to the thickness of the tatami mat.

That is, by turning the adjusting knob 66b at the rear end of the adjusting screw 66, the adjusting screw 66 is rotated, and by screwing with the internal screw 64a of the adjusting block 64, the contact portion 66a at the tip of the adjusting screw 66 is moved. The horizontal movement distance of the upper front tatami mat bending unit 16 is adjusted by abutting and pushing the moving frame 28 of the upper front tatami mat folding unit 16.

In this state, the tatami mat 200 gripped by a gripping mechanism (not shown) is lowered to be above the moving frame 24 of the upper front tatami mat folding unit 16 and the swivel frame 30 above the moving frame 28 of the lower front tatami mat folding unit 18. Place it again in.

Then, as shown by the arrow K in FIG. 10, the upper front side tatami mat folding mechanism 26 of the upper front tatami mat surface folding unit 16 bends the upper front side side 202a, which is the upper front side of the side side 202 of the tatami mat table 200, to the upper front side. Bend upward at the reference position A.

Further, the lower front tatami mat bending mechanism 32 of the lower front tatami mat folding unit 18 bends the lower front side side 202b, which is the lower front side of the side side 202 of the tatami mat 200, upward at the lower front bending reference position B.

In this case, as shown in FIG. 11, especially when the thickness of the tatami floor 206 is thin, the upper front tatami mat folding unit 16 and the lower front tatami mat folding unit 18 are mounted by operating the drive mechanism 22. The side side 202 of the tatami mat 200 is set to 2 by moving it on the guide rail 14 arranged on the frame 12 so that it is located at two stages of the first bending reference position C1 and the second bending reference position C2. You can bend it in stages.

Further, in the tatami mat folding device 10 of the present invention, the upper front tatami mat folding mechanism 26 and the lower front tatami mat folding mechanism 32 have the same configuration. Therefore, the lower front tatami mat folding mechanism 32 is shown below with reference to FIGS. It will be described based on 22.

As shown in FIG. 12, the lower front tatami mat surface bending mechanism 32 is provided with a bending support mechanism 100. The bending support mechanism 100 includes a substantially plate-shaped bending support member 102 for supporting the bending line when the side to be folded (side 202 of the tatami table 200) of the tatami table 200 is bent.

As shown in FIG. 12, the bending support member 102 is connected to the tip of the drive shaft 106 of the drive cylinder 104, and the operation of the drive cylinder 104 causes the bending support member 102 connected to the tip of the drive shaft 106 to be connected. , As shown by the arrow in FIG. 12, it is configured to move up and down.

Then, in the drive cylinder 104, as shown by the arrow in FIG. 12, the drive cylinder 104 rotates.

As the drive cylinder 104 rotates, the bending support member 102 is configured to rotate as shown by the arrow in FIG.

Further, as shown in the enlarged view of FIG. 18, the bending support member 102 includes a bending support member main body 102a and an inclined support portion 102b formed on the bending side end portion 30d side of the swivel frame 30. The inclined support portion 102b is formed with an inclined guide surface 102c inclined toward the bent side end portion 30d, that is, inclined in a direction away from the bent side end portion 30d.

Further, as will be described later, as shown in the enlarged view of FIG. 19, the angle α formed by the tapered inclined surface 108 of the bending member 101 and the horizontal plane and the angle β formed by the inclined guide surface 102c of the bending support member 102 and the horizontal plane are formed. , Α> β are set.

The bending support member 102 extends in the lateral direction of the tatami mat folding device 10 along the side side 202 of the tatami mat table 200.

Further, as shown in FIG. 12, the bending member 101 is configured to be movable in the vertical direction with respect to the bending side end portion 30d of the swivel frame 30 by driving the elevating drive cylinder 110.

As shown in the enlarged view of FIG. 22, the bending member 101 is formed below the bending action portion 112 and the bending action portion 112 in a cross-sectional view, and is narrower than the width of the bending action portion 112. It includes an intermediate portion 114. Further, below the intermediate portion 114, a base end portion 116 having a width wider than the width of the intermediate portion 114 is provided. As a result, the entry recess 115 is formed on the swivel frame 30 side of the intermediate portion 114.

Further, as shown in the enlarged view of FIG. 22, the bending action portion 112 includes a flatly formed upper end surface 118. Then, on the swivel frame 30 side of the bending action portion 112 of the bending member 101, a tatami mat surface rising surface 120 constituting the rising portion is formed in a direction (vertical direction) perpendicular to the upper surface of the swivel frame 30. ing.

In this case, as shown in the enlarged view of FIG. 22, the corner portion between the upper end surface 118 and the tatami mat surface rising surface 120 is round so that the R portion 122a is formed, and at the time of starting up described later. , The side to be bent of the tatami mat 200 (side side 202 of the tatami mat 200) is not damaged.

In this embodiment, the tatami mat rising surface 120 constituting the rising portion is formed in a direction (vertical direction) perpendicular to the upper surface of the swivel frame 30, but the bent side (tatami mat) of the tatami mat 200 is formed. Any surface may be used as long as the surface is raised so as not to damage the side side 202) of the 200, and it is also possible to form an inclined surface or an R surface.

That is, it is sufficient that the tatami mat rising surface 120 can be raised so as not to damage the bent side side of the tatami mat table 200 (the side side 202 of the tatami mat table 200), and various other shapes other than the above shapes are adopted. You can also do it.

Further, the bending action portion 112 of the bending member 101 extends below the tatami mat rising surface 120 and downward from the tatami mat rising surface 120, and is inclined in a direction away from the bending side end portion 30d of the swivel frame 30. The tapered inclined surface 108 constituting the pressed surface is formed.

Further, the base end portion 116 of the bending member 101 is provided with a heater 124 for heating the bending member 101, for example, a sheathed heater or the like.

When the tatami mat 200 is made of, for example, resin rush, the heater 124 is bent when the side to be bent (side side 202 of the tatami mat 200) is bent, as will be described later. The purpose is to heat and soften the vicinity of the wire 203 to facilitate bending from the folding wire 203.

The heater 124 is not particularly limited, and a known heater can be used. In this case, the heating temperature is not particularly limited and may be appropriately set according to the type of resin rush, for example, 120 ° C.

The folding member 101 configured in this way extends in the lateral direction of the tatami mat folding device 10 along the side side 202 of the tatami mat table 200.

The lower front tatami mat folding mechanism 32 of the present invention configured as described above will be described below with reference to FIGS. 12 to 22.
(1) Tatami table placement process

First, as shown in FIG. 12, the tatami mat 200 is arranged on the upper surface of the swivel frame 30 so that the back surface of the tatami mat 200 is located above. That is, the folded side of the tatami mat 200 (one side side 202 of the tatami mat 200) is located on the upper surface of the swivel frame 30 and at the bent side end 30d of the swivel frame 30.

At this time, by driving the elevating drive cylinder 110 of the bending mechanism 20, as shown in FIG. 22, the upper surface of the swivel frame 30 and the upper end surface 118 of the bending member 101 are at height positions in the horizontal direction. Make sure that matches.

Further, at this time, the bending line 203 of the tatami mat table 200 set in advance is located at the bending side end portion 30d of the swivel frame 30, and the bending side end portion of the swivel frame 30 is located according to the height of the side surface of the tatami floor. The tatami mat 200 is placed so as to project from 30d in the direction of the bending member 101 by a predetermined bending width.

In this case, although not shown, a bending accelerator is applied, immersed, or sprayed on the folded side of the tatami mat 200 (the side side 202 of the tatami mat 200, particularly near the folding line 203 of the tatami mat 200). (Spraying) facilitates bending, which is preferable.

As such a bending accelerator, for example, water, high-temperature water vapor, a highly permeable surfactant and the like can be used. As a result, when the folded side of the tatami mat 200 (the side 202 of the tatami table 200) is bent inward with the folding line 203 of the tatami table 200 as a fulcrum, it becomes easy to bend, and the folded side of the tatami table is damaged. It is possible to manufacture rimless tatami mats that look good and have high commercial value.
(2) Bending preparation process

Next, in this state, as shown in FIG. 13, the drive cylinder 104 of the bending support mechanism 100 is operated to extend the drive shaft 106 of the drive cylinder 104 and lower the bending support member 102. Then, the tip 102d of the inclined support portion 102b of the bending support member 102 is located at the bending line 203 of the tatami mat table 200. As a result, the tatami mat 200 is sandwiched between the lower surface of the bending support member 102 and the upper surface of the swivel frame 30, and the tatami mat 200 is fixed so as not to be displaced.

In this state, as shown in FIG. 13, a folding line forming means 126 is provided as needed, and along the folding line 203 for bending the folded side side (side side 202 of the tatami table 200) of the tatami table 200. It is also possible to form a folding line that facilitates bending.

In the embodiment of FIG. 13, as the folding line forming means 126, for example, a squeeze member 128a made of a squeeze roller, for example, a heated squeeze member 128b made of an electric heating iron is provided.

In this case, in the case where the tatami mat 200 is, for example, a tatami mat 200 made of natural rush and a tatami mat 200 made of Japanese paper rush, the formation of a folding line by the rush member 128a is sufficient, but it is made of resin. In a tatami mat 200 made of rush, it is desirable to use the rush member 128a and the heated rush member 128b together.

With this configuration, when the folded side of the tatami table 200 (side 202 of the tatami table 200) is bent inward with the folding line 203 of the tatami table 200 as a fulcrum, the fold formed by the folding line forming means is used. It is easy to fold along the ridge line, it is possible to prevent the folded side of the tatami table 200 (side 202 of the tatami table 200) from being damaged and damaged, and it is possible to manufacture a rimless tatami that looks good and has high commercial value. it can.

Further, in this case, as shown in FIG. 13, it is desirable that the base end portion 116 of the bending member 101 is provided with a heater 124 for heating the bending member 101, for example, a sheathed heater or the like.

With this configuration, when bending the folded side of the tatami mat 200 (side 202 of the tatami table 200), the vicinity of the folding line is heated to soften it, and the folding line 203 of the tatami table 200 is used as a fulcrum inward. When it is bent, it can be easily bent, the side to be folded of the tatami mat table 200 can be prevented from being damaged and damaged, and a rimless tatami mat having a good appearance and high commercial value can be manufactured.
(3) Startup process

Next, after forming the heating and folding lines by the heater 124 as necessary in this way, as shown by the arrow in FIG. 14, the elevating drive cylinder 110 of the bending mechanism 130 is driven to drive the bending member 101. Is raised, and along with this, the tatami mat surface rising surface 120 constituting the rising portion of the bending member 101 is raised.

As a result, as shown in the enlarged views of FIGS. 14 and 18, the folded side side of the tatami mat table 200 (side side 202 of the tatami mat table 200) is formed by the tatami mat table rising surface 120 with the folding line 203 of the tatami mat table 200 as a fulcrum. Start up in the vertical direction.

As a result, only the tatami mat 200 can be bent in advance to some extent in a direction perpendicular to the texture direction of the rush (direction of the rush) without damaging the surface of the tatami mat 200.

In this case, as shown in the enlarged view of FIG. 18, the width H between the bent side end portion 30d of the swivel frame 30 and the tatami mat rising surface 120 forming the rising portion of the bending member 101 is Setting the thickness of the tatami mat 200 to be the same as or slightly smaller than that of the tatami mat 200 makes it easy for the bent side side of the tatami mat table 200 (side side 202 of the tatami mat table 200) to stand up in the vertical direction.

The width H in this case is adjusted by driving the drive cylinder 132 to move the bending mechanism 130 in the direction of contacting and separating the bending frame 30 with respect to the bending side end portion 30d.

Further, in this case, the degree of elevation of the bending member 101 by driving the elevating drive cylinder 110 of the bending mechanism 130 exceeds the tatami surface rising surface 120 of the bending member 101 and is in the middle of the tapered inclined surface 108 constituting the press surface. The bent side end portion 30d of the swivel frame 30 is located at the height position.
(4) Bending process

In this way, after the vertical raising of the folded side (side 202 of the tatami mat 200) of the tatami mat 200 by the tatami mat rising surface 120 of the folding member 101 is completed, the enlarged views of FIGS. 15 and 19 are shown. As shown, it drives the drive cylinder 132 of the bending mechanism 130.

That is, as shown by the arrows in FIGS. 15 and 19, the bending member 101 is moved in a direction approaching the bending side end portion 30d of the swivel frame 30. In this case, since the entry recess 115 is formed on the swivel frame 30 side of the intermediate portion 114 of the bending member 101, the bending side end 30d of the swivel frame 30 enters the swivel frame 115 and moves. Is configured so that it is not disturbed.

As a result, the side to be bent of the tatami mat 200 (the side side 202 of the tatami mat 200) and the tapered inclined surface 108 constituting the press surface of the bending member 101 are brought into contact with each other, and the side to be bent of the tatami mat 200 is brought into contact with the tatami mat 200. Bend inward with the folding line 203 as a fulcrum.

In this case, as shown in the enlarged view of FIG. 19, the angle α formed by the tapered inclined surface 108 of the bending member 101 and the horizontal plane and the angle β formed by the inclined guide surface 102c of the bending support member 102 and the horizontal plane are α> β. It is set to have a relationship of.

If the angle α formed by the tapered inclined surface 108 of the bending member 101 and the horizontal plane and the angle β formed by the inclined guide surface 102c of the bending support member 102 and the horizontal plane are set in such a relationship, the side to be bent of the tatami mat table 200 is set. When (the side side 202 of the tatami mat 200) is bent inward with the folding line 203 of the tatami mat 200 as a fulcrum, the tatami mat surface is placed between the inclined guide surface 102c of the bending support member 102 by the tapered inclined surface 108 of the bending member 101. The side to be bent of 200 (side 202 of tatami mat 200) is not firmly sandwiched.

Further, if the angles are set so that the relationship of α> β is set as described above, the bending pressure of the tatami mat table 200 is surely applied to the tip 102d of the bending support member 102 due to the tapered inclined surface 108. Therefore, it is possible to bend the tatami mat with good dimensional accuracy.

Therefore, when the tatami mat 200 is bent inward with the folding line 203 as a fulcrum, it is possible to prevent the side to be folded (the side 202 of the tatami table 200) from being damaged and damaged, and the edge has a good appearance and high commercial value. No tatami mats can be manufactured.
(5) Separation step of bending support member 102

Next, from this state, as shown in the enlarged views of FIGS. 16 and 20, the bending support member 102 is moved in a direction away from the bent side side (side side 202 of the tatami table 200) of the tatami table 200 (FIG. 16. See the arrow in FIG. 20).

As a result, as shown by the arrows in FIGS. 16 and 20, the drive cylinder 104 rotates, and as the drive cylinder 104 rotates, the bending support member 102 is moved to the side to be bent (tatami surface) of the tatami mat table 200. It is swiveled in a direction away from the side side 202) of the 200.

At the same time, the drive cylinder 104 of the bending support mechanism 100 is operated to contract the drive shaft 106 of the drive cylinder 104. As a result, as shown by the arrows in FIGS. 16 and 20, the direction in which the bending support member 102 connected to the tip of the drive shaft 106 is separated from the bent side side of the tatami mat table 200 (side side 202 of the tatami mat table 200). Move to.

In this case, the amount of movement of the bending support member 102 is determined by pressing the folded side side of the tatami mat 200 (side side 202 of the tatami mat 200) and the tapered inclined surface 108 constituting the pressing surface of the folding member 101 in the next pressing step. It is configured so that it does not get in the way of.
(6) Press process

Next, in this state, as shown in the enlarged views of FIGS. 17 and 21, the elevating drive cylinder 110 of the bending mechanism 130 is driven to lower the bending member 101.

That is, by moving the bending member 101 so as to be positioned further downward with respect to the swivel frame 30, as shown by the arrows in FIGS. 17 and 21 , the side to be bent (the side of the tatami table 200) of the tatami table 200. The side 202) is further bent inward with the folding line 203 of the tatami mat table 200 as a fulcrum.

With this configuration, the folded side of the tatami mat 200 (side 202 of the tatami mat 200) can be further bent inward with the folding line 203 of the tatami mat 200 as a fulcrum, and the crease (folding habit) is firmly formed. With, the corners will not be rounded.

As a result, even when the bent portion is fixed to the side surface of the tatami floor, it can be firmly fixed without becoming a so-called floating state, and it is possible to manufacture a rimless tatami mat having a good appearance and high commercial value.

In this embodiment, (5) the process of separating the bending support member 102 and (6) the pressing process are performed, but it is also possible to perform only the steps (1) to (4). Is.

Further, in this embodiment, the swivel frame 30 is fixed and the bending member 101 is moved, but it is also possible to fix the bending member 101 and move the swivel frame 30 side. .. Furthermore, the swivel frame 30 and the bending member 101 can be configured to be movable.

The structure of the lower front folding table bending mechanism 32 and the steps (1) to (6) are almost the same for the upper front folding table bending mechanism 26.
In addition to the bending mechanism having the above configuration, of course, a conventional bending mechanism can also be adopted.

According to the tatami mat folding device 10 of the present invention configured as described above, the upper front side tatami mat folding unit 16 provided at one end of the gantry frame 12 is used to bend the upper front side of the tatami mat 200. Can be adjusted to.

In this state, the lower front tatami mat bending unit 18 provided at the other end on the gantry frame 12 is horizontally moved in the direction of being brought into contact with and separated from the upper front tatami mat folding unit 16, and the lower front tatami mat folding unit 18 is moved. Is swiveled in the horizontal direction.

In this case, the horizontal movement of the lower front tatami mat folding unit 18 and the horizontal turning movement of the lower front tatami mat folding unit 18 may be performed first, or both may be performed at that time. it can.

Therefore, only the tatami mat 200 can be bent in advance in the direction along the tatami floor (direction of the rush), and the upper front side side 202a of the upper front side of the tatami table 200 is above the tatami floor 206. It is very convenient to be able to fold it into a shape that matches the front side, and at the same time, to fold the lower front side 202b of the lower front side of the tatami mat 200 into a shape that matches the lower front side of the tatami floor 206. It is possible to provide a tatami mat folding device having excellent versatility and improved work efficiency.

Further, the upper front tatami mat folding unit 16 can be horizontally moved in a direction in which the upper front tatami mat folding unit 16 is brought into contact with and separated from the lower front tatami mat folding unit 18, and the lower front tatami mat folding unit 18 is in a direction in which the lower front tatami mat folding unit 18 is brought in and out of the upper front tatami mat folding unit 16. It is configured to be horizontally movable.

With this configuration, the upper front side moving distance adjusting mechanism 60 can set the horizontal moving distance of the upper front side tatami mat bending unit 16 according to the thickness of the tatami mat.
Therefore, when the tatami mat 200 is to be bent with the same dimensions, the position of the folding ruler is changed to the position of the upper front side bending reference position A1 and the lower front side bending reference position B1 when the tatami mat table 200 is thick. When the thickness of the tatami mat 200 is thin, it can be arranged at the bending reference position A2 on the upper front side and the bending reference position B2 on the lower front side.

Therefore, even for tatami mats having different widths in the stile direction of tatami mats, when the thickness of the tatami mat table 200 changes, between the bending reference position A on the upper front side and the bending reference position B on the lower front side. The distance can be freely adjusted, and various types of tatami floor and tatami mat combinations and sizes can be accommodated. With a relatively simple structure, a very convenient and versatile tatami mat folding device can be used. Can be provided.

Further, particularly when the thickness of the tatami floor 206 is thin, the side side 202 of the tatami mat table 200 is first bent in two stages of the first bending reference position C1 and the second bending reference position C2. It is possible to provide a tatami mat folding device 10 that can be adjusted so as to freely move to the position of the bending reference position C1 and the position of the second bending reference position C2.

Further, since the lower front folding table bending unit 18 is configured to be rotatable in the horizontal direction about the virtual axis X in the vertical direction, the lower front shaping portion 308 can be used as a device frame as in the conventional tatami mat bending device 300. There is no need for a complicated structure for axially attaching to the 302 or rail 304 with the vertical axis 310, complicated assembly work is not required, the number of parts is reduced, and cost and labor are not required.

Further, the swivel frame 30 above the moving frame 28 of the lower front tatami mat folding unit 18 is on two virtual arcs having different radii (the first virtual having a radius r1) about the virtual axis X located on the moving frame 28. Guided by the first guide roller 52 and the second guide roller 54 arranged in the second virtual arc G2) having the arc G1 and the radius r2, it is possible to turn in the horizontal direction around the virtual axis X.

As a result, the lower front side tatami mat folding mechanism 32 provided in the swivel frame 30 can bend the lower front side side 202b of the lower front side of the tatami mat 200 into a shape that matches the lower front side side of the tatami floor 206. It is convenient for.

Moreover, unlike the conventional tatami mat folding device 300, the lower front shaping portion 308 does not require a complicated structure for axially attaching to the device frame 302 or rail 304 with the vertical axis 310, and complicated assembly work is not required. The number of parts is reduced, and cost and labor are not required.
(Example 2)

FIG. 23 is a schematic view illustrating the outline of the turning mechanism of the lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention.

The tatami mat folding device 10 of this embodiment has basically the same configuration as the tatami mat folding device 10 shown in FIGS. 1 to 22, and the same constituent members are designated by the same reference numbers. Detailed description will be omitted.

In the tatami mat folding device 10 of this embodiment, as shown in FIG. 23, a first drive device 68 such as a drive motor is provided on the moving frame 28, and the drive of the first drive device 68 is provided. A first feed screw 68a is formed on the shaft.

The tip of the first feed screw 68a is rotatably supported by a first bearing guide member 70 provided on the moving frame 28, and the first bearing guide member 70 can also serve as a stopper. It is designed to work.

Further, a first guide link member 72 is inserted so as to mesh with the first feed screw 68a, and a first connecting portion 72a of the first guide link member 72 is formed on the swivel frame 30. It is connected to the first joint portion 74 formed.

Further, the first coupling portion 74 formed in the swivel frame 30 is slidably connected in the guide slit 76 formed in the swivel frame 30.

Similarly, as shown in FIG. 23, a second drive device 78 such as a drive motor is provided on the moving frame 28, and a second feed is provided on the drive shaft of the second drive device 78. A screw 78a is formed.

The tip of the second feed screw 78a is rotatably supported by a second bearing guide member 80 provided on the moving frame 28, and the second bearing guide member 80 can also serve as a stopper. It is designed to work.

Further, a second guide link member 82 is inserted so as to mesh with the second feed screw 78a, and a second connecting portion 82a of the second guide link member 82 is formed on the swivel frame 30. It is connected to the second coupling portion 84.

Further, as in the embodiment of FIG. 4, on the moving frame 28, the first guide rollers 52 and the second guide rollers 52 and the second guide rollers 52 and the second are arranged on two virtual arcs having different radii about the vertical virtual axis X. The guide roller 54 is provided.

That is, in the vicinity of the first link member 42, a plurality of (two in this embodiment) arranged at regular intervals on the first virtual arc G1 having a radius r1 centered on the virtual axis X. ) The first guide roller 52 is arranged.

Further, in the vicinity of the third link member 50, a plurality of (two in this embodiment) arranged at regular intervals on a second virtual arc G2 having a radius r2 centered on the virtual axis X. A second guide roller 54 is arranged.

Further, in the vicinity of the first connecting portion 30a of the swivel frame 30, the first guide projecting portion 56 has an arc shape with a radius r1 centered on the virtual axis X so as to correspond to the first virtual arc G1. Is formed.

A first guide roller 52 is rotatably and slidably fitted to the outer periphery of the first guide protrusion 56 of the swivel frame 30.

Similarly, in the vicinity of the second joint portion 50a of the swivel frame 30, a second guide projecting portion having a radius r2 is formed around the virtual axis X so as to correspond to the second virtual arc G2. 58 is formed.

Further, a second guide roller 54 is rotatably and slidably fitted on the outer periphery of the second guide protrusion 58 of the swivel frame 30.

Then, based on the radius ratio r1: r2 of the radius r1 from the virtual axis X to the outer circumference of the first guide protrusion 56 and the radius r2 from the virtual axis X to the outer circumference of the second guide protrusion 58, By driving the first drive device 68 and the second drive device 78, as shown by the arrow E in FIG. 23, the turning frame 30 is horizontally centered on the virtual axis X without shifting the virtual axis X. Can turn in a direction.

Further, in this case, the first drive device does not follow the radius ratio r1: r2 of the outer circumference of the first guide protrusion 56 and the guide arc of the outer circumference of the second guide protrusion 58 from the virtual axis X. By driving the 68 and the second driving device 78, the position of the virtual axis X can be arbitrarily set, and the swivel frame 30 can be swiveled in the horizontal direction around the virtual axis X.

In this case, the position of the virtual axis X is arbitrarily set by the first coupling portion 74 formed in the swivel frame 30 sliding in the guide slit 76 formed in the swivel frame 30. The swivel frame 30 can be swiveled in the horizontal direction around the virtual axis X.
(Example 3)

FIG. 24 is a schematic view illustrating an outline of a swivel mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention.

The tatami mat folding device 10 of this embodiment has basically the same configuration as the tatami mat folding device 10 shown in FIGS. 1 to 22, and the same constituent members are designated by the same reference numbers. Detailed description will be omitted.

In the tatami mat folding device 10 of this embodiment, as shown in FIG. 24, a drive device 86 such as a drive motor is provided at a substantially central portion on the moving frame 28. The drive shaft 86a of the drive device 86 is coupled to the coupling portion 30c of the swivel frame 30.

Further, on the moving frame 28, a plurality of guide rollers 88 (four in this embodiment) are provided in an arc shape with the drive shaft 86a as the center, separated by a center angle of 90 °.

The swivel frame 30 is provided with four arc-shaped slits 90 so as to correspond to these four guide rollers 88.

A guide roller 88 is fitted in each of these slits 90 so as to be rotatable and slidable.

With this configuration, by driving the drive device 86, the guide roller 88 on the moving frame 28 rotates and slides in the arc-shaped slit 90 of the swivel frame 30, thereby driving the drive device 86. The swivel frame 30 can be swiveled in the horizontal direction around the shaft 86a (the coupling portion 30c of the swivel frame 30).

In this case, instead of directly connecting the drive shaft 86a of the drive device 86 to the coupling portion 30c of the swivel frame 30, as shown in FIG. 25, the gear 86b provided on the drive shaft 86a and the swivel frame 30 By engaging with the provided gear 86c, it can be coupled to the swivel frame 30, and in this case, the slit 90 and the guide roller 88 become unnecessary.
(Example 4)

FIG. 26 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention.

The tatami mat folding device 10 of this embodiment has basically the same configuration as the tatami mat folding device 10 shown in FIGS. 1 to 22, and the same constituent members are designated by the same reference numbers. Detailed description will be omitted.

As shown in FIG. 26, the tatami mat bending device 10 of this embodiment is provided with a so-called pillow ball (spherical slide bearing) 92, and the drive link shaft 94 is inserted and fixed to the spherical bearing portion 92a of the pillow ball 92. Has been done.

Then, the first end portion 94a of the drive link shaft 94 is coupled to the first coupling portion 96a of the swivel frame 30, and the second end portion 94b of the drive shaft 94 is the second end portion 94b of the swivel frame 30. It is bonded to the connecting portion 96b of 2.

As a result, although not shown, the drive shaft 98 of a drive device such as a motor is connected to the spherical bearing portion 92a. Then, by rotating the drive shaft 98 of the drive device, the spherical bearing portion 92a rotates about the drive shaft 98 in the horizontal direction, as shown by the arrow in FIG. 25. You can do it.
(Example 5)

FIG. 27 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention.

The tatami mat folding device 10 of this embodiment has basically the same configuration as the tatami mat folding device 10 shown in FIGS. 1 to 22, and the same constituent members are designated by the same reference numbers. Detailed description will be omitted.

In the tatami mat folding device 10 of this embodiment, as shown in FIG. 27, the device is guided by four slits 90 and four guide rollers 88, as in FIG. 24. Therefore, the second guide roller 54 and the second guide protrusion 58 are omitted.

A drive mechanism (not shown) allows the swivel frame 30 to swivel in the horizontal direction about the virtual axis X.
(Example 6)

FIG. 28 is a schematic view illustrating an outline of a turning mechanism of a lower front tatami mat folding unit similar to FIG. 4 of another embodiment of the tatami mat folding device 10 of the present invention.

The tatami mat folding device 10 of this embodiment has basically the same configuration as the tatami mat folding device 10 shown in FIGS. 1 to 22, and the same constituent members are designated by the same reference numbers. Detailed description will be omitted.

In the tatami mat bending device 10 of this embodiment, as shown in FIG. 28, in the embodiment of FIG. 26, by arranging the spherical bearing portion 92a at the position of the virtual axis X, the spherical bearing portion 92a rotates about the virtual axis X. The frame 30 can be turned in the horizontal direction.
(Example 7)

FIG. 29 is a top view of a tatami mat folding device similar to FIG. 3 of another embodiment of the tatami mat folding device 10 of the present invention.
Is.

The tatami mat folding device 10 of this embodiment has basically the same configuration as the tatami mat folding device 10 shown in FIGS. 1 to 22, and the same constituent members are designated by the same reference numbers. Detailed description will be omitted.

In the tatami mat folding device 10 of this embodiment, as shown in FIG. 29, the upper front tatami mat folding unit 16 also has the same configuration as the lower front tatami mat folding unit 18 and is brought into contact with and separated from the lower front tatami mat folding unit 18. It is configured to be horizontally movable in the direction, and is configured to be able to turn horizontally around the virtual axis X in the vertical direction.

With this configuration, for example, the lower front tatami mat folding unit 18 can be used as the upper front tatami mat folding unit 16 without turning horizontally, and the upper front tatami mat folding unit 16 can be turned horizontally. It can be used as a lower front tatami mat folding unit 18 and can be used in the opposite direction, which is convenient.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this, and for example, in the above embodiment, although not particularly limited, the tatami mat folding device 10 of the present invention is half tatami mat. It can be configured to correspond to either one for use or one for tatami mats.

For example, it is also possible to make the tatami mat folding device 10 of the present invention correspond to the length for half tatami mats so that the folded side side of the tatami mat table 200 (side side 202 of the tatami mat table 200) is bent by half tatami mats. Further, in this case, the side to be folded (side 202 of the tatami mat 200) of the tatami mat 200 can be bent by half a tatami mat to accommodate one tatami mat.

Further, in the above embodiment, in the tatami mat folding device of the present invention, the folded side side of the tatami mat table 200 (side side 202 of the tatami mat table 200) is in a direction perpendicular to the weave direction of the rush (the direction of the rush). Although the case of bending is described above, it can also be applied to the case of bending the side of the tatami mat table 200 on the stile 206c side.

Further, in the above embodiment, the upper front side moving distance adjusting mechanism 60 is provided. For example, by using a combination of a stepping motor and a ball screw, both the upper front side and the lower front side are numerically controlled and the first bending reference position C1 is provided. And, it may be configured to bend at the second bending reference position C2.

Furthermore, while the upper front side viewed scale by the handle, the operator, by manual operation, the first folding reference position C1, be configured so as to the horizontal movement of the positioning of the second folding reference position C2 good.

Further, the rotation mechanism shown in the above embodiment also has a configuration in which the upper front tatami mat bending unit 16 and the lower front tatami mat folding unit 18 are rotatable in the horizontal direction about the virtual axis X in the vertical direction. Various changes can be made without departing from the object of the present invention, such as not being limited.

The present invention relates to a tatami mat folding device for inwardly bending the side sides (upper front side side and lower front side side) of the tatami mat used for rimless tatami mats, and more specifically, the tatami mat table used for rimless tatami mats. (Upper front side and lower front side) can be applied to a tatami mat folding device for bending the tatami mat stalks inward along the tatami floor.

10 Folding table folding device 12 Stand frame 14 Guide rail 16 Upper front side tatami surface folding unit 18 Lower front side tatami surface folding unit 20 Bending mechanism 22 Drive mechanism 24 Moving frame 24a Outer end 26 Upper front tatami mat bending mechanism 28 Moving frame 28a Outer end 30 Frame 30a 1st joint 30b 2nd joint 30c Bending side end 32 Lower front tatami mat surface bending mechanism 34 Driver 34a Drive shaft 34b Gear 36 Rotating gear 36a Rotating shaft 38 1st cam 40 Connecting pin 41 Connecting pin 42 First link member 42a Coupling portion 43 Connecting pin 44 Second link member 46 Second cam 46a Shaft member 48 Connecting pin 50 Third link member 50a Coupling portion 52 First guide roller 54 Second Guide roller 56 First guide protrusion 58 Second guide protrusion 60 Upper front movement distance adjustment mechanism 62 Flange 64 Adjustment block 64a Internal screw 66 Adjustment screw 66a Abutment 66b Adjustment knob 68 First drive device 68a 1st lead screw 70 1st bearing guide member 72 1st guide link member 72a 1st joint 74 1st joint 76 Guide slit 78 2nd drive 78a 2nd feed screw 80 2nd Bearing guide member 82 Second guide link member 82a Second coupling portion 84 Second coupling portion 86 Drive device 86a Drive shaft 86b Gear 86c Gear 88 Guide roller 90 Slit 92 Pillow ball 92a Spherical bearing portion 94 Drive shaft 94 Drive link shaft 94a 1st end 94b 2nd end 96a 1st joint 96b 2nd joint 98 Drive shaft 100 Bending support mechanism 101 Bending member 102 Bending support member 102a Bending support member main body 102b Tilt support 102c Tilt guide Surface 102d Tip 104 Drive cylinder 106 Drive shaft 108 Tapered inclined surface 110 Elevating drive cylinder 112 Action part 114 Intermediate part 115 Entry recess 116 Base end part 118 Upper end surface 120 Tatami surface Rising surface 122 End surface 122a R part 124 Heater 126 Line forming means 128a Bearing member 128b Heating bearing member 130 Bending mechanism 132 Drive cylinder 201 Edgeless tatami mat 200 Tatami table 202 Side side 202a Upper front side side side 202b Lower front side side side 203 Bending line 204 Siege side side side 205 Extra part 2 06 Tatami floor 206a, 206b Side side 206c Frame 208 Side 210 Bent side side 212 Back side 300 Tatami front bending device 302 Device frame 304 Rail 306 Upper front shaping part 308 Lower front shaping part 310 Vertical axis 312 Swivel base A Reference position A1 Upper front side Bending reference position A2 Upper front bending reference position B Reference position B1 Lower front bending reference position B2 Lower front bending reference position C1 First bending reference position C2 Second bending reference position D Arrow E, E'Angle F Arrow G1 First virtual arc G2 Second virtual arc H Width J Arrow K Arrow L1 Distance L2 Distance L3 Distance r1 Radius r2 Radius T1 Left stile width T2 Bending allowance X Virtual axis α Swing angle α1 Angle β Angle

Claims (6)

A tatami mat folding device for folding the side sides of the tatami mat inward.
The upper front tatami mat folding unit provided at one end on the gantry frame,
It is provided with a lower front tatami mat folding unit provided at the other end on the gantry frame.
The upper front tatami mat folding unit is configured to be horizontally movable in a direction in which the upper front tatami mat folding unit is in contact with and separated from the lower front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be horizontally movable in a direction in which the lower front tatami mat folding unit is in contact with and separated from the upper front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be rotatable in the horizontal direction .
The lower front tatami mat bending unit is configured to be rotatable in the horizontal direction around a vertical virtual axis.
The lower front tatami mat folding unit
A moving frame that horizontally moves on the gantry frame in a direction in which the upper front side tatami mat bending unit is brought into contact with and separated from the upper front folding unit.
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with a lower front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The tatami mat bending is characterized in that the swivel frame is guided by a first guide roller and a second guide roller on the moving frame so as to be swivel in a horizontal direction about the virtual axis. apparatus. A tatami mat folding device for folding the side sides of the tatami mat inward.
The upper front tatami mat folding unit provided at one end on the gantry frame,
It is provided with a lower front tatami mat folding unit provided at the other end on the gantry frame.
The upper front tatami mat folding unit is configured to be horizontally movable in a direction in which the upper front tatami mat folding unit is in contact with and separated from the lower front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be horizontally movable in a direction in which the lower front tatami mat folding unit is in contact with and separated from the upper front tatami mat folding unit.
The upper front tatami mat folding unit is configured to be rotatable in the horizontal direction .
The upper front tatami mat bending unit is configured to be able to rotate horizontally around a virtual axis in the vertical direction.
The upper front tatami mat folding unit
A moving frame that moves horizontally on the gantry frame in the direction of contacting and separating from the lower front tatami mat bending unit, and
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with an upper front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The tatami mat bending is characterized in that the swivel frame is guided by a first guide roller and a second guide roller on the moving frame so as to be swivel in a horizontal direction about the virtual axis. apparatus. A tatami mat folding device for folding the side sides of the tatami mat inward.
The upper front tatami mat folding unit provided at one end on the gantry frame,
It is provided with a lower front tatami mat folding unit provided at the other end on the gantry frame.
The upper front tatami mat folding unit is configured to be horizontally movable in a direction in which the upper front tatami mat folding unit is in contact with and separated from the lower front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be horizontally movable in a direction in which the lower front tatami mat folding unit is in contact with and separated from the upper front tatami mat folding unit.
The lower front tatami mat folding unit is configured to be rotatable in the horizontal direction .
The lower front tatami mat bending unit is configured to be rotatable in the horizontal direction around a vertical virtual axis.
The lower front tatami mat folding unit
A moving frame that horizontally moves on the gantry frame in a direction in which the upper front side tatami mat bending unit is brought into contact with and separated from the upper front folding unit.
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with a lower front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The swivel frame is guided by the first guide roller and the second guide roller on the moving frame, and is configured to be swivel in the horizontal direction around the virtual axis.
The upper front tatami mat bending unit is configured to be able to rotate horizontally around a virtual axis in the vertical direction.
The upper front tatami mat folding unit
A moving frame that moves horizontally on the gantry frame in the direction of contacting and separating from the lower front tatami mat bending unit, and
Above the moving frame, a swivel frame that is swivelably arranged around the virtual axis,
It is equipped with an upper front tatami mat bending mechanism provided on the swivel frame.
On the moving frame, a first guide roller and a second guide roller arranged on two virtual arcs having different radii are provided around a virtual axis located on the moving frame.
The tatami mat bending is characterized in that the swivel frame is guided by a first guide roller and a second guide roller on the moving frame so as to be swivel in a horizontal direction about the virtual axis. apparatus. Any one of claims 1 to 3 , further comprising an upper front moving distance adjusting mechanism capable of setting the horizontal moving distance of the upper front tatami mat folding unit according to the thickness of the tatami mat or the thickness of the tatami mat. The tatami mat folding device described in. Any of claims 1 to 4 , further comprising a lower front movement distance adjusting mechanism capable of setting the horizontal movement distance of the lower front tatami mat folding unit according to the thickness of the tatami mat or the thickness of the tatami mat. The tatami mat folding device described in. The tatami mat folding apparatus according to any one of claims 1 to 5 , wherein at least one of the upper front tatami mat folding unit and the lower front tatami mat folding unit is provided with a cutting mechanism for cutting the side side of the tatami mat. ..

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