JP2888785B2 - Tatami corner stop device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner-stopping device which bends a tatami edge cloth and a base sheet along a frame and stops the corners, and optionally performs a flat stab or reverse stitch before and after the cornering operation.

[0002]

2. Description of the Related Art A tatami edge cloth and a base sheet (hereinafter referred to as an edge cloth and a base sheet) are sewn with a flat stab on the side of a tatami floor on which a tatami mat is sewn. Stop at the corner. The corner stop of the edge cloth is conventionally manual work, and the edge cloth is folded back toward the side of the tatami floor with a flat stitch, the side edges are aligned on the extension of the seam, and outward tension is applied. While turning it downward, the corner was stopped with a tacker or the like while the edge cloth was closely attached to the frame.

[0003] Performing the corner stop manually requires a large number of people and labor, but it is difficult for a certain level of skilled person to uniformly perform a good-looking corner stop. For this reason, attempts have been made to implement the above operations using machines.
(JP-A-6-17522). In this cornering device, the lower surface of the edging cloth is pressed against the stile by an edging cloth pushing tool having an inclined edge, and the zipper is turned along the stile while holding the edging cloth with the edging cloth chuck, so that the edging cloth is turned into the stile. The corners are fixed with a tacker in a state of close contact. There are two types of tackers: one that can move forward and backward facing the frame, and one that can move up and down under the frame.

[0004]

The mechanization of the cornering work is preferable from the viewpoint of labor saving and labor saving, but the above-mentioned apparatus has some disadvantages as compared with the manual work. It is difficult to position the pivot axis of the edge cloth chuck with respect to the frame, and depending on the positional relationship between the frame and the pivot axis, the edge cloth may not be able to be completely adhered. Corner stops on the premise that
If the edge cloth is not completely adhered to the frame, the corner stoppers cannot be cleaned neatly. In addition, it is also possible to point out that the finish is inferior to a skilled person, such as incomplete folding of the base paper or inability to form the side edges of the edge cloth along the flat stitches.

[0005] Therefore, instead of simply mechanizing the procedure of the operator, the work procedure and method suitable for the machine are examined on the premise that the machine is used, and the corner stopper can be more accurately and finished well. We decided to develop a tatami corner stop device. In addition, with the mechanization of the corner stop work, the mechanization of the whole tatami sewing work was also considered, and a device that could perform the work more efficiently was also considered.

[0006]

As a result, what has been developed is an apparatus for automatically or manually mechanically stopping a tatami mat, comprising a shaping mechanism and a corner stopping mechanism for an edge cloth. In the mechanism, the edge cloth (including lower paper) protruding from the frame is retracted to the frame with the upper claws, key claws, and lower claws sandwiched, and the edge cloth folded with flat stitches is At the same time as making a fold of the rim cloth on an extension of the fold edge , the edge of the rim cloth facing the fold edge is bent inward to make a fold, and the rim cloth projecting from the frame is attached to the frame. This is a corner stop device for a tatami mat, provided with a shaping claw for shaping into a reverse trapezoidal shape.

In the corner stop mechanism, a linear moving chuck that moves downward toward the frame while moving toward the frame with the edge cloth held therebetween, or from a lower edge of the frame when moving forward toward the frame below the frame. It is preferable to provide a tacker for stopping corners of the lower surface of the frame, which is in sliding contact with the edge cloth wound tightly on the frame in the process of reaching the lower surface of the frame.

[0008] In addition, for a base provided with a tatami floor positioning mechanism and a swivel mechanism, an edge cloth shaping mechanism and a corner stopper mechanism are provided on one side of the base, and a tatami mat is provided on the other side opposite to the side. The tatami corner stop device provided with the sewing mechanism described above may be used.

According to the cornering device of the present invention, a flat sewn edge cloth is shaped into a shape suitable for cornering by automatic or manual mechanical operation, and the shaped edge cloth is closely attached to a tatami frame. Then, a tacker for corner fixing on the lower surface of the frame is slid from the lower edge of the frame to the lower surface of the frame so as not to be loosened, and the corner is stopped.

[0010] The shaping mechanism retracts the protruding end of the rim cloth turned outward with the flat stitches toward the outside of the frame while holding the upper edge, the key nail, and the lower nail with respect to the frame. The key nail of the shaping nail is slid in contact with the folding edge of the rim cloth to form a continuous linear fold from the folding edge, and at the same time, faces the folding edge at the base of the upper nail and the lower nail of the shaping nail. The edge of the edge cloth can be gradually bent inward and creased, and the corner stopper of the edge cloth can be shaped into an inverted trapezoidal shape that can be finished finely.

[0011] The corner stopper mechanism urges the edge of the rim cloth inward of the tatami mat below the frame from the lower edge of the frame by advancing and descending downwardly of the frame with the linear moving chuck holding the rim cloth. The edge cloth can be closely attached to the frame while the edge cloth is pressed against the lower edge of the frame. Fold Tsuketsume is, if close to the contact surface after advancing by position movement rotation or parallel to that pair toward the stile side in a state that the abutment surface spaced apart from the rail so as to be in close contact contacts the rail, Regardless of the amount of protrusion of the frame, the inside of the edge cloth can be reliably pressed against the frame by the claw with the fold, and the edge cloth can be closely attached to the frame by the linear moving chuck, so that the finish can be further refined. The separation between the contact surface of the claw and the side surface of the frame is realized by, for example, separating the contact surface in parallel with the side surface of the frame or inclining the contact surface outward with respect to the side surface of the frame. In addition, the tacker for corner stop on the bottom of the frame comes into contact with the lower edge of the frame of the rim cloth wound tightly around the frame, and in that state, slides on the lower surface of the frame to make the rim cloth tightly adhered to the frame. Further, the lower edge of the frame can be brought into close contact with the lower surface of the frame, and wrinkles can be removed from the edge cloth at the same time.

An edge cloth shaping mechanism on each side of the base,
The corner stop device provided with the corner stop mechanism and the sewing mechanism can perform different work on both sides of the tatami floor placed on the base, for example, stab an edge cloth on one side and corner on the other side. Work efficiency can be improved, such as by stopping. The tatami floor can be easily and accurately turned by the positioning mechanism and swivel mechanism provided on the base, so that each mechanism does not have to be moved with respect to the tatami floor, and complicated and difficult operations such as positioning of each mechanism can be performed. Can be omitted.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a corner fixing device according to the present invention. FIG. 1 is a perspective view showing a positional relationship of each part with respect to a tatami floor 1 in a corner stopper device of the present example including a shaping mechanism and a corner stopper mechanism. Each unit is driven by an electric motor or a cylinder as a drive source and automatically or manually operated from an operation panel. In addition, a drive source, an operation panel, and the like are omitted.

As shown in FIG. 1, the corner stopper device of this embodiment includes a claw 2 having a fold, which mainly carries out a shaping mechanism, a shaping pawl 3, a linear moving chuck 4, which mainly carries a corner stopper mechanism, and a tacker for cornering the side of a frame. 5 and a tacker 6 for stopping the corners on the lower surface of the frame, and a tension chuck 7 functioning over both mechanisms.

The operation sequence of the corner stopper will be described. 2 to 16 are plan views (steps 1 to 6) of the corner fixing operation (FIGS. 2, 4, 7, 9, 13, and 1).
5) and side views (FIGS. 3, 5, 8, 10, 14, and 16)
FIG. 11 is a front view of the shaping claw 3 (FIG. 6), the claw 2 with creases (FIG. 11), and the linearly moving chuck 4 (FIG. 12). In each part, only the main part is shown, and the drive source (electric motor or cylinder) is omitted.

First, as shown in FIG. 2 and FIG. 3, as shown in FIG. 2 and FIG. 3, the edge cloth 8 stabbed on the side edge of the tatami floor 1 fixed and mounted on the base (not shown) of the corner stopper device. The pulling chuck 7 approaches toward the side wall 9 of the frame, and the edge cloth 8 is folded back along the flat stitches in a state where the edge of the edge cloth is sandwiched (see the two-dot chain line in FIG. 2) (solid line in FIG. 2). (See the double-dashed line to solid line in FIG. 3).

Next, as shown in FIGS. 4 and 5, the shaping pawl 3 is inserted into the folded edge cloth 8 in parallel with and near the side surface 9 of the frame. As shown in FIGS. 4 to 6, the shaping claw 3 includes a straight upper claw 10 and a lower claw 11 facing outward and downward with respect to the side surface 9 of the frame. At the tip of the upper claw 10, a key claw 13 that comes into contact with the folded edge 12 of the rim cloth is pivotally mounted. The shaping nail 3 is inserted into the edge cloth 8 with the key nail 13 in an open state, and the key nail 13 is rotated (see FIG. 6), so that the inner edge of the edge cloth 8, that is, the edge along the extension line of the folded edge 12. The cloth 8 is bent, and the outer edge of the rim cloth 8 is bent at the base of the upper claw 10 and the lower claw 11, so that each of the folds has a sharp cross section.

In order to finish the corner stop with good appearance, it is important that the edge cloth has an appropriate shape, that is, a fold having a sharp cross section. The shaping nail 3 according to the present invention, as shown in FIG. 4, retreats slightly inward while hanging the key nail 13 on the inner edge of the edge cloth 8, and as shown in FIGS. Lower nail
The outer edge of the edge cloth 8 is bent obliquely at the base of 11 to make a fold, and the protruding end of the edge cloth 8 from the frame is formed into an inverted trapezoid with respect to the frame. As a result, the edge cloth 8 is provided with a fold having an acute angle in cross section together with the base paper 14, and a margin for folding the edge cloth 8 in close contact with the frame can be formed on the lower surface 15 of the edge cloth.
The edge cloth 8 can be folded in close contact with the frame without protruding from the frame 16.

When the shaping of the edging cloth 8 is completed, the shaping claw retracts,
As can be seen in FIGS. 9 and 10, the tension chuck 7 pivots downward by a predetermined angle to apply tension to the edge cloth 8.
This is performed in order to eliminate the slack of the edge cloth 8 which may be caused by the shaping operation. Creasing pawl 2 in the form of inserting into the inside of the edge cloth 8, is close to the stile in a state facing outwardly relative to the stile, the contact at a position where abutment surface 27 has pairs toward the stile side 9 surface
27 is rotated horizontally substantially parallel to the side surface 9 of the frame to make close contact with the side surface 9 of the frame. For this reason, in this example, the claw 2
Has a horizontal rotation axis 28 and a vertical rotation axis 29 (see FIG. 1). Further, the linear moving chuck 4 is connected to the edge cloth 8 in the tension state.
Is inserted at a fixed distance from the frame and parallel to the side surface 9 of the frame. As shown in FIGS. 9 to 11, the claw 2 is a flat plate having a downwardly arcuate shape.
Is formed.

The linear moving chuck 4 has a holding claw 17 which is closed by the cylinder pressure, and inserts the holding claw 17 into the edge cloth 8 in an open state. As shown in FIG. 9, the linear moving chuck 4 is slightly upwardly inclined with respect to the frame so that the edge cloth 8 inclined by the rotation of the pulling chuck 7 and the holding claws 17 are substantially parallel to each other. This is to enable the holding claws 17 to hold the edge cloth 8 with the surface. Thus, as shown in FIG. 12, when the linear moving chuck 4 holds the edge cloth 8, the pulling chuck 7 opens the edge cloth 8 and retreats.

The linear moving chuck 4 holding the edge cloth 8 is
As seen in FIG. 13 and FIG. 14, the slide is linearly slid downwardly of the frame, and is shaped into an inverted trapezoid with the rim cloth lower surface 15 in close contact with the frame side surface 9 with a claw with a crease (not shown). Wrap the trimmed fabric 8 around the frame. In this way, the edge cloth lower surface 15 is creased by the claw 2 with a fold that comes into contact with the frame side face 9 (see FIGS. 9 and 10), whereby the edge cloth with extremely high adhesion can be bent.

Conventionally, since the edge cloth held by the chuck is rotated, the edge cloth wound around the frame may be loosened depending on the positional relationship of the rotating shaft with respect to the frame.
In the cornering device of the present invention, the portion close to the edge of the edge cloth is pinched, the linear moving chuck 4 is linearly moved, and the pinched portion is pushed down below the frame and deeper than the lower edge. Wrapping in a pressed state (see FIG. 14) does not cause the problem of loosening. As shown in FIG. 13 or FIG. 14, the edge cloth 8 adhered to the frame side 9 is corner-stopped in this state by the frame-side corner tacking tacker 5.

Finally, with the edge cloth 8 pressed against the side wall 9 of the frame by the linear moving chuck, as shown in FIG. 15 and FIG. Move forward and corner stop. The upper edge of the front face of the tacker 6 has a sliding contact claw 19 that slides on the edge cloth, and as shown in FIG. Eliminate wrinkles and the like reaching the lower surface 18. The sliding claws 19 have an appropriate friction, and also have a function of increasing the adhesion of the edge cloth 8 to the frame by pulling the entire edge while pressing the edge cloth 8 against the lower surface 18 of the frame. After the cornering of the edge cloth is completed, the side face of the edge cloth is reversely sewn to complete the operation.

The above-mentioned cornering step has an advantage that the cornering for shaping the edge cloth with good appearance and closely adhering to the frame can be automatically or manually mechanically performed by an operation from an operation panel. In the manufacturing process of tatami, in addition to this corner stop work,
2. Description of the Related Art Conventionally, sewing operations, for example, automation of flat stitching and reverse stitching of edge cloth have been widely performed. Figure 17 shows the positioning mechanism of the tatami floor
A base 23 provided with a rotating mechanism 22 and a turning mechanism 22 is provided with a shaping mechanism and a corner stopping mechanism 24 for an edge cloth, a folding mechanism 25 for a side edge of the edge cloth, and a sewing mechanism 26 for a tatami mat. FIG. 4 is a perspective view showing an arrangement relationship of each part in a corner stopper device in which all the steps are automated.

The tatami floor 1 is fixed to the base 23 in a predetermined positional relationship by the positioning mechanism 21, and the side cloth is stabbed or back-stitched on one side and the corner is stopped on the other side. This corner stopper device removes the tatami floor 1 from the base 23 together with the base 23 without removing the tatami floor 1 from which the edge cloth has been stabbed on one side.
By rotating the flat cloth to the side where the shaping mechanism and the corner stop mechanism 24 are disposed by turning the flat cloth, the corner stop work is performed, and at the same time, the side edge of the cloth is creased by the folding mechanism 25. it can. Alternatively, the tatami floor 1 after the corner fixing operation may be rotated by 180 degrees, and the reverse sewing may be performed in the sewing mechanism 26.

The work relating to the above-mentioned edge cloth is preferably selected as appropriate in accordance with the work procedure of the apparatus user, and may be arbitrarily combined. For example, in the above-described example, the sewing mechanism only performed one single operation of flat stab or reverse stitching,
The sewing mechanism may also have the functions of flat stab and reverse stitch, so that the operations of flat stab, corner stop, and reverse stitch of the edge cloth can be continuously performed.

Such a corner stopper is characterized in that a series of operations on the edge cloth can be continuously and automatically performed while the tatami floor is fixed to the base, so that the operation efficiency can be greatly improved. In addition, the sewing mechanism, shaping mechanism and corner stopper mechanism are
It may be arranged at 90 degrees or any angular position with respect to the base. Furthermore, a mechanism for performing necessary work in another tatami manufacturing process is arranged on the rotating base so as to be orthogonal to a straight line connecting the sewing mechanism, the shaping mechanism, and the corner stopper mechanism, and the tatami floor is set at 90 degrees. It is also conceivable to perform the work continuously by rotating each time.

[0028]

According to the corner stopper of the present invention, the corner stopper in which the edge cloth is closely adhered to the side surface of the frame can be uniformly performed with good appearance, and the quality of the finish does not deteriorate due to the automation of the work. This is because the base paper, which has not received much attention in the past, is folded and shaped together with the edge cloth, the edge cloth is pulled linearly instead of rotating, and the inside of the edge cloth is creased with creases on the side of the frame And removing the wrinkles of the edge cloth with a tacker for stopping corners on the lower surface of the frame.

Further, by arranging a sewing mechanism, a shaping mechanism, and a corner stopper mechanism with respect to a base having a positioning mechanism and a turning mechanism, a series of operations on, for example, an edge cloth can be performed without transferring a tatami floor. And the improvement of the working efficiency by mechanization can be enhanced. Thus, the cornering device of the present invention achieves both a reduction in working time due to mechanization and an improvement and uniformity in the quality of the finish of the cornering, making it possible to manufacture tatami extremely efficiently. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a corner fixing device according to the present embodiment, which includes a shaping mechanism and a corner fixing mechanism.

FIG. 2 is a plan view of a main part of the corner stop device in a stage 1 of the corner stop operation.

FIG. 3 is a side view of a main part of the corner stop device in a stage 1 of the corner stop operation.

FIG. 4 is a plan view of a main part of the corner stop device in stage 2 of the corner stop operation.

FIG. 5 is a side view of a main part of the corner stop device in stage 2 of the corner stop operation.

FIG. 6 is a front view of a shaping nail.

FIG. 7 is a plan view of a main part of the corner stop device in stage 3 of the corner stop operation.

FIG. 8 is a side view of a main part of the corner stop device in stage 3 of the corner stop operation.

FIG. 9 is a plan view of a main part of the corner stop device in a stage 4 of the corner stop operation.

FIG. 10 is a side view of a main part of the corner stop device in stage 4 of the corner stop operation.

FIG. 11 is a front view of a claw with a fold;

FIG. 12 is a front view of a linear moving chuck.

FIG. 13 is a plan view of a main part of the corner stop device in stage 5 of the corner stop operation.

FIG. 14 is a side view of an essential part of the corner stop device in stage 5 of the corner stop operation.

FIG. 15 is a plan view of a main part of the corner stop device in stage 6 of the corner stop operation.

FIG. 16 is a side view of a main part of the corner stop device in stage 6 of the corner stop operation.

FIG. 17 is a perspective view of a corner stopper device that continuously performs flat stab or reverse stitching and corner stopper.

[Explanation of symbols]

 2 Folded claw 3 Shaping claw 4 Linear moving chuck 5 Tacker for corner stop on the side of frame 6 Tacker for corner stop on the bottom of frame 7 Pull chuck

Claims (5)

(57) [Claims] 1. An apparatus for automatically or manually mechanically stopping corners of a tatami mat, comprising an edge cloth shaping mechanism and a corner stopper mechanism, wherein the shaping mechanism removes the edge cloth protruding from a frame. While retreating from the frame while being sandwiched between the upper claws, key claws, and lower claws, at the same time as making a fold of the edge cloth on the extension line of the folded edge of the edge cloth folded with flat stitches,
A tatami mat provided with a shaping claw for bending an edge of the rim cloth facing the folded edge inward to make a crease, and shaping the rim cloth protruding from the frame into an inverted trapezoidal shape with respect to the frame. Corner stop device. 2. An apparatus for automatically or manually mechanically stopping a corner of a tatami mat, comprising an edge cloth shaping mechanism and a corner stopper mechanism, wherein the corner stopper mechanism sandwiches the edge cloth. A corner stop device for a tatami mat, wherein a linear moving chuck is provided which moves downward toward the frame while moving forward toward the frame. 3. An apparatus for automatically or manually mechanically stopping corners of a tatami mat, comprising an edge cloth shaping mechanism and a corner stopping mechanism, wherein the corner stopping mechanism faces the frame below the frame. A corner stop device for a tatami mat, comprising a tacker for corner stop on the lower surface of the frame, which slides into contact with the rim cloth wound in close contact with the frame in a process from the lower edge of the frame to the lower surface of the frame when moving forward. 4. A base provided with a positioning mechanism and a turning mechanism for a tatami floor, a shaping mechanism for corner cloth and a corner stop mechanism are arranged on one side of the base, and a tatami mat is formed on the other side facing the side. A cornering device for a tatami mat, characterized by having a sewing mechanism. Creasing claw forming the folds on the edge cloth underside folding for 5. corner stop is, after advancing to pair towards a position in該框in a state that the abutment surface spaced apart from the rail, the abutment surface On the frame
A tatami corner stop device having a structure in which it is brought into close contact with the tatami mat.