JPH0713652Y2 - Work cloth holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This invention provides a table, a support provided on the table, a holding plate for holding a work cloth, the holding plate and the support. The present invention relates to a work cloth holding device including a connecting mechanism that detachably connects at two positions along the table surface.

(Prior Art) Conventionally, in this type of work cloth holding device, in order to detachably support the work cloth holding plate, a pair of supports arranged at a predetermined interval extend over the table surface. , A pair of fitting holes extending in parallel with each other and having a circular cross section are formed, and a pair of connecting shafts that can be fitted into the fitting holes are provided on the holding plate so as to fit with the connecting shafts. There is one in which the work cloth is held on the table by the holding plate in a state where the holding plate is connected to the support by fitting with the dowel, and the work cloth is subjected to predetermined processing.

Among the work cloth holding devices, in particular, a device used when sewing a pocket to a work cloth, a gauge plate is interposed between the work cloth and the pocket piece, and a holding plate that presses the pocket piece from above the gauge plate. Is provided.
Therefore, the holding plate that holds the work cloth is substantially U-shaped in plan view so as to surround the gauge plate and the pressing plate.
The U-shaped ends of the holding plate are detachably connected to the pair of supports.

(Problems to be solved by the invention) However, in the conventional work cloth holding device used for sewing pockets on the work cloth, the arrangement intervals of the support members are set wide, that is, the U-shaped holding plate If the distance between both ends is set to be wide, the U-shaped holding plate is easily distorted, and when the U-shaped holding plate is attached to or detached from the support, the connecting shaft and the fitting hole are There was a problem that the work could not be smoothly attached and detached due to twisting.

The present invention has been made to solve the above-mentioned problems, and the purpose thereof is to provide a crimp between the support body and the support plate even when the support body is set at a wide interval. It is an object of the present invention to provide a work cloth holding device capable of smoothly performing the connecting work by preventing the possibility of occurrence of the above.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a table 1
And a gauge plate 14 provided above the work cloth W placed on the table 1 and on which the pocket piece P is placed.
And the position above the gauge plate 14 and the gauge plate 14
And a pair of supports provided on the table 1, which are provided so as to be movable from above to a position overlapping with the gauge plate 14, and which hold the pocket piece P together with the gauge plate 14 when the pocket plate P is pressed together with the gauge plate 14. Body 23 and the gauge plate
14 so as to surround 14 along table 1 at intervals
A holding plate 24 formed in a letter shape and for holding the work cloth W
And a plurality of bending pieces 27 provided on the U-shaped inner peripheral side of the holding plate 24 and capable of moving forward and backward between the table 1 and the gauge plate 14.
And a connecting mechanism for detachably connecting the U-shaped end portions of the holding plate 24 to the support body 23, the connecting mechanism includes U-shaped end portions of the holding plate 24. In addition, a pair of connecting projections 31 are provided so as to project in parallel at a predetermined interval in the direction along the table surface, and the upper and lower surfaces of each are formed as flat surfaces 32 and 33 that extend in parallel, and the support. A fitting recess 34 formed in the body 23 and having engaging surfaces 35 and 36 for engaging with the upper and lower surfaces of the connecting projection 31 for accommodating each connecting projection 31, and the fitting recess 34 are described above. When accommodating the connection protrusion 31, it is formed to allow relative movement of the support member 23 and the holding plate 24 in a direction parallel to the upper surface and the lower surface of the connection protrusion 31, and
The engaging recess 37 formed on the outer side surface of the connecting projection 31 and the support member 23 having the fitting recess 34 formed therein are configured to be retractable in the fitting recess 34, and at the time of the projection. The gist of the invention is that it is composed of a locking projection 41 that can be engaged with the locking recess 37.

(Operation) Therefore, when connecting the holding plate to the support, the connecting projection provided on the holding plate is housed in the fitting recess formed in the support, and the support and the holding plate are relatively moved in this state. Then, when the locking recess of the connecting projection is opposed to the locking projection and the locking projection is projected and engaged with the locking recess, the holding plate is smoothly and reliably fixed to the support.

Embodiment An embodiment embodying the present invention will be described in detail below with reference to the drawings. As shown in FIG. 4, on the table 1, a placement position at which a work cloth such as the front body W and a pocket piece P sewn to the front body W are placed, and to the right of the placement position. The transporting position separated from each other is set, the folding machine B is installed corresponding to the mounting position, and the sewing machine M is disposed corresponding to the transporting position. The upper surface of the bed portion 3 of the sewing machine M is arranged flush with the upper surface of the table 1.
On the arm portion 4 of the sewing machine M, a needle bar 6 having a needle 5 that forms a stitch on the front body W or the like in cooperation with a thread catcher in the bed portion 3 is movably supported.

A feed arm 7 is disposed on the table 1 so as to be movable in the X and Y directions in FIG. 4 and movable up and down, and a moving plate 9 having a needle guide groove 8 is detachably attached to the front portion thereof. ing. Then, the movable plate 9 is moved between the needle 5 and the table 1 away from the upper surface of the table 1 by the feed arm 7 from the transport position to the mounting position, and
As shown in FIGS. (G) and (h), as the feed arm 7 descends, the moving plate 9 presses the pocket piece P and the front body W against the table 1, and the moving plate 9 is placed at the mounting position. Is moved back to the transport position, and in that state, the movable plate 9 is moved along the needle guide groove 8 in synchronization with the vertical movement of the needle 5, whereby the pocket piece P is sewn to the front body W. .

Next, a folding machine B for forming a fold along the outer periphery of the pocket piece P will be described. As shown in FIG.
A support member 10 is rotatably supported on a table 1 about a horizontal axis, and a gauge plate support 13 located in front of the support member 10 is mounted on a piston 12 of an air cylinder 11 mounted on the lower surface thereof. ing. This support 13 has pocket pieces P
A gauge plate 14 for determining the outer shape of the above is detachably attached, and the pocket piece P is placed on the upper surface thereof.

A horizontally extending support shaft 16 is inserted into a shaft support portion 15 projecting from the front surface of the support member 10, and a holding plate support 17 is rotatably attached to the support shaft 16. A pressing plate 19 is removably attached to the pair of mounting portions 18 protruding from the support body 17. An air cylinder 21 rotatably connected to the upper surface of the support member 10 is connected to a connecting piece 20 projecting from the center of the holding plate support 17.
The piston 22 of is connected.

A pair of support blocks 23 are integrally rotatably mounted on both ends of the support shaft 16, and bending piece holding plates 24 having a substantially U-shaped plane are removably mounted on the both support blocks 23.
Four air cylinders 25 are mounted on the holding plate 24 so as to be positioned outside the tip of the pressing plate 19, and bent pieces 27 are mounted on the pistons 26 of the four air cylinders 25, respectively.
On the other hand, an air cylinder 28 is arranged between the upper end of each of the support blocks 23 and both side portions of the support member 10, the base end of which is rotatably connected to the support member 10 and its piston.
29 is connected to the upper end of the support block 23.

When the pocket piece P is sewn to the front body W using the folding machine B and the sewing machine M in this embodiment, first, a fold line is formed on the outer periphery of the pocket piece P. That is, the gauge plate 14, the presser plate 19 and the bent piece holding plate 24 are integrally raised together with the support member 10 so that the gauge plate 14 stands by above the table 1 as shown in FIG. 5 (a). Position, and then the air cylinders 21 and 28 are operated to separate the bending piece holding plate 24 and the pressing plate 19 from above the gauge plate 14, and between the table 1 and the gauge plate 14 and the gauge plate 14.
A gap is formed between the holding plate 19 and the holding plate 19. In this state, the front body W is placed on the table 1 below the gauge plate 14 and the pocket piece P is placed on the gauge plate 14.

Next, the air cylinders 21 and 28 are operated to lower the holding plate 19 and the bent piece holding plate 24, and the holding plate 19 is superposed on the gauge plate 14 as shown in FIG. The peripheral edge of the piece P is bent below the gauge plate 14. And
By operating each air cylinder 25 shown in FIG. 4, each bending piece 27 is moved to the lower side of the gauge plate 14 as shown in FIG. 5 (c), and each bending piece 27 causes the peripheral edge of the pocket piece P to be moved. Bend the part so that it overlaps the gauge plate 14.

Next, as shown in FIG. 5D, the plates 14, 19, 24 are lowered together with the support member 10 by a predetermined amount. Subsequently, the air cylinders 25 are operated to move the bending pieces 27 back to separate them from the pocket pieces P as shown in FIG. 5 (e), and then operate the air cylinders 21 and 28. , Fig. 5 (f)
As shown in FIG. 5, the bent piece holding plate 24 and the pressing plate 19 are raised to separate them from the pocket piece P.

Next, with a predetermined gap formed between the needle 5 of the sewing machine M and the table 1, the moving plate 9 is moved forward onto the gauge plate 14 as shown in FIG. By the plate 9,
The pocket piece P is pressed on the front body W together with the gauge plate 14. Next, the air cylinder 11 is operated, and FIG. 5 (h)
As shown in, the gauge plate 14 is moved rearward and separated from the pocket piece P. Then, with the moving plate 9 pressing the pocket piece P and the front body W against the upper surface of the table 1,
After the movable plate 9 is returned to the needle drop point, the sewing machine M is operated to sew the pocket piece P to the front body W.

Next, a support block constituting the support in the present invention
The connection structure between the holding piece 23 and the bent piece holding plate 24 constituting the holding plate will be described with reference to FIGS. 1 and 2. Bending piece holding plate
A pair of connecting projections 31 are mounted on both ends of the rear part of the rear portion 24 in parallel with each other at a predetermined interval and project backward along the upper surface of the table 1, and flat surfaces 32 extending parallel to the upper and lower surfaces of both connecting projections 31. , 33 are formed. On the other hand, each support block 23
Fitting recesses 34 capable of accommodating the connecting projections 31 are formed in the lower part of the, and are opened at the front and rear ends and the left side thereof. In addition, inside the fitting recesses 34, both flat surfaces of the connecting projection 31 are formed.
Engaging surfaces 35 and 36 that engage with 32 and 33 are formed. Furthermore,
As shown in FIG. 1, the width a of the connecting projection 31 is determined by the fitting recess 34.
The width b is slightly smaller than the width b. When the connecting projections 31 are housed in the fitting recesses 34 through the openings thereof, the support shaft 16 is provided between the both 31 and 34 due to the dimensional difference.
Relative movement in the direction along is allowed.

The upper flat surface 32 of each connecting projection 31 is formed with a mortar-shaped locking recess 37, and each supporting block 23 is formed with a guide hole 38 communicating with the fitting recess 34 from above. In the state where the upright wall 31a of the projection 31 is engaged with the front end surface 23a of the support block 23 and the both are positioned, each connecting projection
31 is housed in each fitting recess 34, and the locking recess 37 is inserted into the guide hole 38.
When they are opposed to each other, a play due to the above-mentioned dimensional difference is intentionally formed between the coupling protrusion 31 and the fitting recess 34.

An air cylinder 39 is mounted on each of the support blocks 23, and a frustoconical locking protrusion 41 that can be retracted into the fitting recess 34 through a guide hole 38 is attached to the tip of a piston 40 of the piston. ing. Then, when the piston 40 projects, the locking projection
41 is engaged with the locking recess 37 of the connecting projection 31, and the connecting projection 31 is moved in the fitting recess 34 so that the center of the locking recess 37 is aligned with the center of the locking projection 41. 24 is positioned and held by the support block 23.

On the other hand, as shown in FIGS. 3 and 4, the holding plate support 1
7. The gauge plate support 13 and the feed arm 7 are provided with a pair of connecting portions 42 arranged at intervals narrower than the arrangement intervals of the both supporting blocks 23, and each connecting portion 42 includes the support shaft 16 and A fitting hole 43 having a circular cross section extending in the front-rear direction is formed so as to be orthogonal to each other, and a guide hole 44 communicating with the fitting hole 43 and extending vertically.
Are formed. An air cylinder 45 is mounted on each connecting portion 42, and a locking projection 47 capable of projecting and retracting in the fitting hole 43 through a guide hole 44 is attached to the tip of a piston 46 of the air cylinder 45.

The holding plate 19, the gauge plate 14 and the moving plate 9 are connected to each other by the connecting portions 42.
A connecting shaft 49 which is detachably fitted into the fitting hole 43 of each connecting portion 42.
Is projected. A locking recess 50 is formed on the outer periphery of each connecting shaft 49, and when each connecting shaft 49 is fitted into each fitting hole 43, the locking recess 50 is arranged to face the guide hole 44. Then, when the piston 46 is projected, the locking projection 47 is the locking recess of the connecting shaft 49.
50 engaged.

Then, the gauge plate 1 corresponding to the pocket piece P having a predetermined shape
4, when the presser plate 19, the moving plate 9 and the bending piece holding plate 24 are mounted on the folding machine B and the sewing machine M, first, the pistons 46, 40 of the air cylinders 45, 39 are operated to move the pistons 46, 40 respectively. The locking protrusions 47, 41 are arranged at the retracted position shown by the chain double-dashed line in FIGS. 3 and 2.

In this state, when the connecting shaft 49 of the gauge plate 14, the holding plate 19 and the moving plate 9 is fitted into the fitting holes 43 of the connecting portion 42 of the gauge plate support 13, the holding plate support 17 and the feed arm 7, Connecting shaft
The locking recess 50 of 49 is arranged to face the guide hole 44 of each connecting portion 42. Next, when the piston 46 of each air cylinder 45 is operated to cause each locking projection 47 to project as shown by the solid line in FIG. 3, each locking projection 47 is engaged with the locking recess 50 and connected. Axis 49
Is prevented from falling off, and the plates 14, 19 and 9 are firmly connected to their corresponding members. Therefore, there is no play during the operation of the folding machine B.

Further, the connecting projection 31 of the bent piece holding plate 24 is attached to the support block 23.
Through the opening into the fitting recess 34 of from the left front,
Each flat surface 32, 33 of the connecting projection 31 and each engaging surface 35 of the fitting recess 34,
When they are brought into contact with 36, the lower engaging surfaces 35, 36 of both fitting recesses 34
On a plane including, by slightly moving the bending piece support plate 24 to the left and right, while moving the connecting projection 31 in the fitting recess 34,
The base end standing wall 31a of each connection protrusion 31 can be engaged with the front end surface 23a of the support block 23 so that each locking recess 37 can be arranged to face the guide hole 38 of the support block 23. At this time, a part of each connecting projection 31 can be moved in a state of protruding to the left from the left side opening of the fitting recess 34, and at the same time, the connecting projection 31 can be moved.
Since the width a of the 31 is smaller than the width b of the fitting concave portion 34, even if the arrangement interval of both the connection projections 31 is set wide, no kinking occurs between the both 31, 34, and the support is provided. Board 2
4 can be mounted extremely easily. Then, the support plate 24 causes the connecting projection 31 and the fitting recess 34 to be fitted and locked.
Since it is firmly connected to the support block 23 by the engagement of 41 and the locking recess 37, even if the support plate 24 is moved up and down during the operation of the folding machine B, there is no backlash.

Further, the gauge plate 14, the pressing plate 19, the moving plate 9 and the bent piece holding plate
When replacing 24 with another, replace each air cylinder 45,3
When the pistons 46, 40 of 9 are operated to move the locking protrusions 47, 41 to the positions indicated by the chain double-dashed lines in FIGS. 3 and 2, the locking protrusions 47, 41 are connected to the connecting shaft 49 and the connecting shaft 49. Locking recess 50 for protrusion 31
And 37. Therefore, in this state, if the connecting shaft 49 and the connecting protrusion 31 are separated from the fitting hole 43 and the fitting recess 34, the members 14, 19, 9, 24 are made to correspond to the respective members 1.
Can be easily removed from 3,18,7,23.

Further, in this embodiment, the gauge plate 14, the pressing plate 19 and the moving plate 9 which can set the arrangement intervals of the connecting mechanism portions to be narrow.
For the above, since the combination of the connecting shaft 49 and the fitting hole 43 is used, the connecting protrusion 31 and the fitting recess 34 are provided for all members.
It can be manufactured at a lower cost than the case of using the combination with.

(Effects of the Invention) As described in detail above, in the present invention, even when the arrangement interval of the support bodies is set wide, when connecting the U-shaped holding plate to the support body, there is a possibility that a twist occurs between them. It has an excellent effect that the connection work can be carried out smoothly by preventing the above.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part showing a connecting mechanism between a support and a holding plate in a folder according to an embodiment of the present invention,
2 and 3 are side views showing a part of the folding machine in a cutaway manner, FIG. 4 is a perspective view showing the folding machine and the sewing machine, and FIGS. 5 (a) to 5 (h) are operation explanations of the folding machine. It is a figure. 1 ... Table, 14 ... Gauge plate, 19 ... Presser plate, 23 ...
… Supporting blocks as supports, 27 …… bent pieces, 24 ……
Bending piece holding plate as a holding plate, 31 ...... connecting protrusions, 32,3
3 ... Flat surface, 34 ... Fitting recess, 35, 36 ... Engaging surface, 37 ...
… Locking recess, 41 …… Locking protrusion, W …… Front body as a work cloth.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Toru Takemura 9-35 Hotta-dori, Mizuho-ku, Nagoya-shi, Aichi Brother Industries, Ltd. (72) Toshiaki Iwasaki 9-35 Hotta-dori, Mizuho-ku, Nagoya, Aichi Brother Industry Co., Ltd. (56) References: Showa 60-195686 (JP, U) JP 60-35458 (JP, B2)

Claims (1)

[Scope of utility model registration request] 1. A table (1), a gauge plate (14) which is provided above a work cloth (W) placed on the table (1) and on which pocket pieces (P) are placed. The gauge plate (14) is movably provided between a position separated upward from the gauge plate (14) and a position overlapping the gauge plate (14) from above, and when the gauge plate (14) is overlapped with the gauge plate (14). ) Together with a holding plate (19) for holding the pocket piece (P), and a pair of supports (23) provided on the table (1).
And a holding plate (24) for holding the work cloth (W), which is formed in a substantially U shape so as to surround the gauge plate (14) along the table (1) at intervals. A plurality of bending pieces (27) provided on the U-shaped inner peripheral side of the plate (24) and capable of moving back and forth between the table (1) and the gauge plate (14), and U of the holding plate (24). A work cloth holding device comprising: a connecting mechanism that detachably connects the character-shaped both ends to the support body (23), wherein the connecting mechanism includes a U-shaped end part of the holding plate (24) on the table. A pair of connecting projections (31) formed as flat surfaces (32, 33) each of which has a top surface and a bottom surface extending in parallel with each other, the pair being provided so as to project in parallel at a predetermined interval in a direction along the surface; Engagements formed on the body (23) for engaging the upper and lower surfaces of the connection protrusions (31) to receive the connection protrusions (31). The fitting recess (34) having the surfaces (35, 36) and the fitting recess (34) are parallel to the upper surface and the lower surface of the connecting projection (31) when the connecting projection (31) is housed. Is formed so as to allow relative movement between the support (23) and the holding plate (24) in the direction, and a locking recess (3) formed on the outer surface of the coupling protrusion (31).
7) and a support body (23) in which the fitting recess (34) is formed, and is configured to be retractable into and out of the fitting recess (34). A work cloth holding device comprising: a locking projection (41) capable of engaging with the work cloth.