JPS59172360A - Folding device for belt-like material - Google Patents

Abstract

PURPOSE:To simplify the structure of a folding device by guiding a belt-like material alternately from both sides to be supplied to a folding end portion position and be alternately wrapped round a folding end portion retaining member. CONSTITUTION:With the repetition of pivotal movement of a pair of film feed arms 55, a continuous bag-like member 2 on a receiving table is pressed at the central part thereof by a pressing plate 58 every time the arms 55 are laid down, an inserting member 62 is inserted through an overlapped notch, and moderate tension is applied to the continuous beg-like member 2 to form a fold reliably. The continuous bag-like member 2 is guided alternately from both sides by the paired arms 55 adapted to repeat pivotal movement to be supplied to a folding end portion position, whereby a supply mechanism 50 and a folding end retaining member will not collide with each other so as to considerably simplify the construction of the whole device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a belt-like member folding device for folding a belt-like member made of a plastic film or the like every predetermined length.

In recent years, plastic bags have been widely used as packaging materials because they are hygienic and can be mass-produced at low cost. In addition, continuous members of such plastic bags (hereinafter referred to as
The plastic continuous bag-like member (or simply referred to as the continuous bag-like member) is folded in half and stored in a cardboard box, etc., and as needed, like pop-up tissue paper.
A structure in which the sheets can be taken out and used one by one has also been proposed (Japanese Patent Application Laid-open Nos. 57-56948 and 57-14287).
No. 2, Japanese Patent Application No. 194004/1983).

By the way, as a device for folding the continuous bag-like member, the folding end position of each continuous bag-like member, which is a band-like member, is small (in other words, the device moves forward and backward from one side in the width direction of the band-like member toward the folded end position). The band-shaped member is held on the folded-end holding member while reciprocating between the folded-end holding member and the folded-end position of the band-shaped member in a straight line or in an arc along the longitudinal direction of the band-shaped member. The present applicant has already proposed a device equipped with a belt-like member feeding mechanism that supplies the belt-like members in a manner that they are wound alternately (Japanese Patent Application No. 57-5125, No. 5).
No. 7-9788, No. 58-1886). According to such a previously proposed folding device, there is no risk of damaging the band-shaped member, and the band-shaped member can be folded reliably and at a high speed. However, since the feeding mechanism reciprocates between the folding front end positions, the feeding mechanism and the folding end holding member do not collide with each other (which poses difficulties in operating both properly). There was also a difficulty in operating both the supply mechanism and the holding member using a common drive source.Of course, the previously proposed devices had solved these difficulties. However, this tends to make the overall structure of the device complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a folding device for a band-like member, which has a simplified overall configuration and is capable of folding a band-like member reliably and quickly.

Unlike the previously proposed device that is equipped with a feeding mechanism that reciprocates between the folding front end positions, the present invention uses a pair of film feeding arms that swing alternately to the folding end positions of the strip member. The strip member is supplied to the folded end position by alternately guiding the member from both sides (a strip member supplying mechanism is provided, and this feeding mechanism supplies at least the strip member at the folded end position of each of the strip members). The belt-shaped member is configured to be alternately wrapped around the folded end holding member that advances and retreats from one side in the width direction toward the folded end position, and the supply mechanism and the folded end holding member collide with each other. The purpose of the present invention is to achieve the above object by making it possible to operate the feed mechanism and the folded end holding member without any problem, thereby simplifying the connection and interlocking structure of the supply mechanism and the folded end holding member.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows an embodiment of a belt-like member folding device according to the present invention. A bag making machine 10 is installed in a frame (not shown) constructed by combining H-shaped steel and the like, and a tension adjustment mechanism 20 and a folding device 40 according to the present invention are incorporated in this frame. Note that FIG. 2 is a plan view of this folding device 40.

A plastic strip member 1 as a strip member is continuously fed into the bag making machine 10 from a so-called raw material.

This plastic band member 1 is a flattened cylindrical film formed by, for example, an inflation molding method. The bag making machine 10 has a heat sealer 11 and a mixer.
A cutter 12 provided near the heat sealer 11 and a receiver facing the heat sealer 11 and the cutter 12 at a predetermined distance have a block 13, and the heat sealer 11 and the cutter 12 sandwich the plastic strip member 1 and receive it. is configured to move forward and backward toward the block 13 side. Further, a slit 14 into which the tip of the cutter 12 is inserted is formed in the receiver block 13.

The heat sealer 11 and the cutter 12 advance toward the block 13 each time the plastic strip member 1 is fed a predetermined amount, and as a result, the plastic strip member 1 becomes a continuous bag-shaped member (strip-shaped member) as shown in FIG. (It is still a member) 2. That is, the heat sealer 11 welds both sides of the plastic strip member 1 along the width direction at predetermined length intervals to form a sealed portion (bag bottom) 3, and the cutter 12 welds the plastic strip member 1 to the same predetermined length. A perforation 4 and two notches 5 are formed along the width direction in each case.

Therefore, each time the continuous bag-like member 2 is separated along the perforation 4, a large number of plastic bags can be obtained, with the perforation 4 serving as the opening edge and the sealing portion 3 serving as the bag bottom.

The continuous bag-like member 2 formed by the bag-making machine 10 includes a guide roll 15 fixed to the frame and a position adjustment roll 16 whose mounting position can be adjusted along the horizontal direction in FIG. The tension adjustment mechanism 20 provided above the folding device 40 is supplied through the folding device 40 .

This tension adjustment mechanism 20 is fixed to a predetermined position on the frame side, with a dancer 21 such as a roller or rod that is hung around the continuous bag member 2 car after being wrapped around the position adjustment roller 16, and a reversing roll 22. The continuous bag-shaped member 2 is sent from the dancer 21 to the reversing roll 22, and from the reversing roll 22 to the folding device 40 via the guy V roll 23. ing.

The dancer 21 is attached to one end of the swing link 24. The swing link 24 has, for example, an L-shape, and a weight 25 is fixed to the other end, and a bent portion is swingably supported on the frame side via a support shaft 26. The slack of the continuous bag-shaped member 2 is absorbed by such a dancer 21.

Further, the surface of the reversing roll 220 is formed of an extremely smooth metal surface, and this reversing roll 22 is constantly rotated in the opposite direction to the feeding direction of the continuous bag-shaped member 2. The movement of the dancer 21 to absorb the slack of the shaped member 2 is performed extremely quickly.

After passing through the tension adjustment mechanism 20, the continuous bag-like member 2 is fed to a folding device 40 according to the invention.

The folding device 40 is equipped with a rotary drive source (not shown) such as a motor, and the output shaft of this rotary drive source or the output shaft of a transmission (not shown) connected to the output shaft is a drive shaft located on the lower side in FIG. 41, and a cam-type rotary disk 42 and a cam 43 are fixed to this drive shaft 41. The heat sealer 11 and cutter 12 of the bag making machine 10 are connected to forward and backward shafts (not shown) of the bag making machine 10 through cam followers, links, etc. (not shown) to the cam type rotary disk 42.
The heat sealer 11 and cutter 12 move forward and backward at a predetermined timing by 20 rotations. Further, one end of a first drive rod 44' is connected to this cam-type rotary disk 42, and the other end of the first drive rod 44 is connected to one end side of a link 45, such as a letter-shaped link.

Further, one end of a second drive rod 46 is connected to the end of the link 45, and the other end of the second drive rod 46 is connected to one end of a link 47 having the same shape as the link 45. The two links 45 and 47 are arranged at the same height on both the left and right sides in FIG. 1, and are each supported swingably on the frame side via a mounting shaft 48.

One end of an arm drive rod 49 is connected to the other end of the two front links 45 and 47, respectively.

The configuration of the other end sides of these two arm drive rods 49 will be described below.

That is, as shown in FIG. 4, for example, a rectangular bar-shaped base end block 51 of a predetermined length connects the arm drive rod 49 via a connecting shaft 52 protruding from one end of the base end block 51. It is connected to the end portion side. Base end block 51
has billow-like legs 53 at both ends, and a support shaft 54 is rotatably inserted through the legs 53, and when the cam-type rotary disk 42 is rotated, this rotational force is applied to the ronds 44, 46 and the links. 45
．． 47 and arm drive rod 49 to the base end block 51, and the base end block 51 is configured to swing around the support shaft 54 at a predetermined timing.

A base end portion of a film feed arm 55 is fixed to one side of the base blocks 51 facing each other, and the film feed arm 55 pivots about the support shaft 54 along with the swing movement of the base block 51. Swinging (lowering down ← standing up)
It is now possible to do so. A plate-shaped end pressing plate 56 of a predetermined width is fixed to the tip of the film feeding arm 55 at right angles to the film feeding arm 55 (in the width direction of the continuous strip member 20), and the lower edge of this end pressing plate 56 It is said to have a rounded shape.

This end pressing plate 56 is configured to be located at one of the folded end positions of the continuous bag-like member 20 when the film feed arm 55 is laid down horizontally.

That is, when the film feed arm 55 is swung from an upright state to a collapsed state, the end pressing plate 56 has a continuous bag-like shape stretched from the tension adjustment mechanism 20 to the folding device 40. After contacting one side of the member 2, the continuous bag-like member 2
The continuous bag-like member 2 is guided and supplied to the one folded end position while being taken from the tension adjustment mechanism 20. Here, a supply mechanism 50 that guides the continuous bag-like member 2 alternately from both sides using the block 51, the leg portion 53, the arm 55, and the pressing plate 56 guides the bag-like member 2 to the folded end position. It is configured.

A holding plate 58 is attached to the lower end surface of the film feed arm 55 at a substantially central position in the longitudinal direction via a mounting pin 57 along a direction K perpendicular to the longitudinal direction (width direction of the continuous bag-like member 2). . This presser plate 58 presses the approximate center of the folded continuous bag-like member 2 stacked on the pedestal 61 (see FIG. 1) of the stock mechanism toward the pedestal 61 side. There is. From the upper end surface of this pedestal 61, a rod-shaped insertion member 62 is provided to protrude upward and to the side, and these insertion members 6
2 are inserted into the overlapping notches 5 (see FIG. 5) of the continuous bag-like members 2 stacked on the pedestal 61, and the distal ends of these insertion members 62 are inserted into the presser plate 5.
It is adapted to be loosely inserted into an escape hole 63 bored at a predetermined position of 8.

Further, as the folding operation progresses, the pedestal 61 is configured to be lowered by itself in conjunction with the folding operation, or by using the pressing force of the presser foot &58. has been done.

The cam 43 is a circumferential cam, and two cam followers T1 and 72 are engaged with the cam surface of the cam 43 so as to sandwich the cams 4 and 3 from both sides along the radial direction. One cam follower 71 is attached to the swinging end of a connecting rod 73, and the other end of the connecting rod 73 is swingably fixed to the frame via a fixed bearing 74. Connecting rod 7
One end of a connecting rod 75 is connected to a predetermined position in the longitudinal direction of 3, and the other end of the connecting rod 75 is connected to a lower end of a swinging rod 76.

The other cam follower 72 is attached to the lower end of the swinging rod 77. For example, this swinging rod 77 and the connecting rod 73 are connected to each other by a tension coil spring (not shown), so that the two cam followers 71 and 72 is always cam 4
It is designed so that it will not be separated from 3.

The upper ends of the two swinging rods 76 and 77 are arranged to be at substantially the same height as each other, and each is swingably supported by the frame via a fixed bearing 81 at a predetermined position in the longitudinal direction. ing. Parallel rods 82, 83 each having a predetermined length are arranged parallel to the swing rods 76, 77. The lower ends of the parallel rods 82 and 83 are fixed at a predetermined position in the longitudinal direction of the swinging wheel 76 and 77 via a transverse shaft 84, and the upper ends of the parallel rods 82 and 83 are swung via a transverse rod 85. It is fixed to the upper end side of the rods 76 and 77.

Each of the transverse rods 85 provided on both the left and right sides in FIG.
To explain this together, as shown in FIG. 4, one end of a connecting shaft 91 is connected to both ends of the transverse rod 85, and the other end of each connecting shaft 91 is connected to a connecting piece 920.
Connected in place. The connecting piece 92 is supported rotatably on a virtual plane along the horizontal direction by a rotating shaft 94 protruding from the upper end surface of the connecting block 93. Further, both ends of the connecting locks 930 are fixed to support blocks 95, and the supporting shafts 54 are suspended at predetermined positions of the supporting blocks 950.

Here, the blocks 93, 95 and the support shaft 54 constitute a pace block 96, and the base block 96 is supported with respect to the frame so that its mounting position can be adjusted in the horizontal direction. In other words, the configuration is such that the distance between the pace blocks 96 arranged on both the left and right sides in FIG. 1 can be adjusted.

The base ends of the opening/closing arms 101 are each fixed to the two connecting pieces 92, and a pair of opening/closing wings 102 as folding end holding members are fixed to the distal ends of the opening/closing arms 101. The opening/closing blades 102 are arranged on the same imaginary plane along the horizontal direction, and are configured to open/close on the imaginary plane by rotation of the connecting piece 920. Furthermore, in the closed state, the opening/closing wings 102 open/close on the same imaginary plane along the horizontal direction. One side edge of the wing 102 is located at the folded end position of the continuous bag-like member 2, and
In the expanded state, the distance between the tips of the opening/closing wings 102 is further separated by a predetermined length from the length of the continuous bag-like member 2 in the width direction.

A member 104 of the folding end receiver is disposed so as to be able to come into contact with one side edge along the folded end position of the opening/closing wing 102 in the closed state, and the folding end receiver member 104 and the opening/closing wing The continuous bag-like member 2 is sandwiched between the bag-like member 102 and the folded end portion of the continuous bag-like member 2 is reliably formed. The folding end support member 104 is fixed to two rotating pieces 106 having bearings 105 that are rotatably fitted onto the support shaft 54, and the folding end support is rotated through the rotating pieces 106. The member 104 is rotatably supported by the support shaft 54. Further, a stopper 107 is fixed to the rotating piece 106, and a tension coil spring 108 as a biasing means is attached to the stopper 107.
One end of the spring 108 is fixed, and the other end of the spring 108 is fixed to the frame side. The member 104 of the folding end receiver is always urged toward the folding end position by the spring 108, but the leg portion 53 is able to abut against the stopper 107, and the leg portion 53 is When in the predetermined rotational position, the leg 5
3 and the stopper 107 come into contact with each other, the stopper 10 is forcibly rotated along the rotating direction of the leg 53, and the folding end holder also rotates the folding end of the member 104 against the force of the spring 108. It is configured so that it can be rotated in a direction away from the central position.

Next, the operation of this embodiment will be explained with reference to FIGS.

Due to the rotation of the rotary disk 42 and the cam 43, the pair of opening/closing wings 102 provided on both folding ends are opened and closed at a predetermined timing, and both film feeding arms 55 are moved without colliding with each other. The opening/closing wing 10
It oscillates between the standing state and the lying state while keeping the timing with the opening/closing operation of step 2. On the other hand, the bag making process in the bag making machine 10 is performed by the same drive source as the folding device 40, as described above, and is operated at a predetermined timing with the folding operation in the folding device 40.

One end of the plastic strip member 1 is pulled out from the original fabric, and a bag making machine 10, a position adjustment roll 16, and a tension adjustment mechanism 20 are installed.
, and after fixing the pulled out end to the pedestal 61 of the stock mechanism, the bag making machine 10 and the folding device 40
Start each operation in . The bag-making machine 10 forms seal portions 3, perforations 4, and notches 5 at predetermined lengths in the plastic strip-like member 1 to form a continuous bag-like member 2.
This continuous bag-like member 2 is connected to a film feeding arm 55.
It is folded onto the pedestal 61 (.

FIG. 6(4) shows the operating state of the film feed arm 55 and the opening/closing blade 102, which corresponds to the operating state shown in FIG. In this figure, the film feed arm 55 on the right side in the figure is laid down at the folded end position on the left side in FIG. A folded end portion is about to be formed in the bag-like member 2. The opening/closing wing 102 on the left side in FIG. 1 is closed and positioned inside the end pressing plate 56 (on the base end side of the film feed arm 550), and as shown in FIG. The tatami mat support member 104 is moved back to a position a predetermined distance from the folded end on the left side. That is, as the leg portion 53 of the base end block 51 is rotated counterclockwise in FIG. As a result of the forcible rotation, the member 104 of the folded end receiver is retracted in the aforementioned direction.

-Then, as shown in FIG. 6 (6), the film feed arm 55 that was in the collapsed state is swung in the direction of standing up, and the swing arm on the left side in FIG. 1 is moved from the upright state. It swings into a prone state. The continuous bag-like member 2 supplied from the tension adjustment mechanism 20 is guided to the folded end position on the right side in the figure by the end press plate 56 at the tip of the film feed arm 55 that is in the collapsed state. At this time, the pair of opening/closing wings 102 on the left side are maintained in a closed state.

Therefore, this opening/closing wing 102 has a film feeding arm 55.
The continuous bag-like member 2 is wound around the body as the body shifts to the laid-down state. At this time, the pair of opening and closing wings 1 on the right side
02 is transitioned from the closed state to the expanded state.

Furthermore, since the leg portion 53 of the base end block 51 that supports the base end of the film feed arm 550 on the left side is rotated clockwise, the stopper 107 that was locked to this leg portion 53 is also rotated clockwise. That is, the folding end receiving member 104 is moved to the folded end position under the force of the tension coil spring 108, and the folding end receiving member 104 and the opening/closing wing 10 are moved to the folded end position.
2, the continuous bag-like member 2 is firmly held between the bag-like member 2 and the continuous bag-like member 2, and a fold is formed in the continuous bag-like member 2 along the width direction.

As shown in FIG. 6 (C1), when the film feed arm 55 on the left side in the figure is completely laid down, the opening/closing wing 102 on the right side
The distal end of the holder is inserted into the proximal end side of the end pressing plate 56 and is closed. At this time, the film feed arm 55 on the right side
is in an upright position.

When the film feed arm 55 in this upright state begins to swing to the collapsed state as shown in FIG. At the same time, the continuous bag-shaped member 2 supplied from the tension adjustment mechanism 20 is guided to the folded end position on the left side by the end pressing plate 56 at the tip of the film feeding arm 55 (
That will happen.

Note that, at this time, the film feed arm 55 on the left side has already been swung from the laid down state to the upright state.

When the film feed arm 55 on the right side is completely lowered, it will be in the same state as shown in FIG. Continuous bag-like members 2 which are sequentially folded to a certain folding width are stacked on '1.

As the pair of film and film feed arms 55 are repeatedly rocked, the continuous bag-like member 2 on the pedestal 61 of the stock mechanism is held in the center by the holding plate 58 each time the film feed arm 55 is lowered. As a result, the insertion member 62 is reliably inserted into the overlapped notches 5, and the continuous bag-like member 2 held between the opening/closing wing 102 and the end receiving member 104 is Appropriate tension is applied to ensure that creases are formed (.

Further, the length of the continuous bag-like member 2 between the bag-making machine 10 and the folding device 40 is adjusted by adjusting the position of the position adjustment roll 16 along the horizontal direction. By adjusting the length, they are stacked on the pedestal 61 (the positions of the cuts 5 of the folded continuous bag-like members 2 are accurately overlapped).

Also, a bag making machine 10 and a folding device 40. In the continuous bag-like member 2 between the belt and the belt, the dancer 21 and the reversing roller 22 that speeds up the movement (return) of the dancer 21' effectively prevent sagging and prevent wrinkles. It has become.

This embodiment has the following effects.

Since the continuous bag-like member 2 is alternately guided from both sides by a pair of film feed arms 55 that repeatedly oscillate and is supplied to the folded end position, it does not rotate like the previously proposed device. The mechanism that converts motion into linear reciprocating motion, the reciprocating supply mechanism, and the folding end holding member do not collide with each other (no mechanism or various devices for operation are required. Therefore, the entire device The configuration can be extremely simplified, and the movement of the entire device is also simple.Therefore, it is possible to operate at a higher speed than the previously proposed device, and has the effect of increasing the folding speed.

Also, since the number of parts is significantly reduced, each part is made thicker (
It is possible to increase the strength of the device, and it is also possible to apply sufficient force to each component, making it possible to ensure the folding operation. Furthermore, since the strength of the entire device is increased in this way, it can sufficiently withstand high-speed operation, and from this point of view as well, there is an effect that the folding speed is further improved.

In addition, since the configuration is simple, there is no risk of malfunction (and ease of handling is improved), and noise, vibration, etc. are also reduced.

Further, when the film feed arm 55 guides the continuous bag-like member 2 to the folded end position, the folded end and the pressing plate 56 apply appropriate tension to the continuous bag-like member 2 while maintaining the continuous bag-like member 2 at the folded end position. Since it acts to squeeze the member 2 (to smooth out wrinkles, etc.), the folding accuracy of the continuous bag-like member 2 is improved, and the continuous bag-like member 2 is folded accurately to a certain fold width and neatly without wrinkles. be able to.

Also, the film feed arm 55 is mounted on the pace block 96.
It has a structure in which the opening and closing wings 102, etc. are installed as a unit, and by moving the two left and right base blocks 96 in the horizontal direction and changing the spacing between both base blocks 96, various sizes can be created. The continuous bag-like member 2 can be folded to a folding width of , which is extremely convenient.

Furthermore, in the previously proposed device, the insertion member of the stock mechanism was moved up and down at appropriate timing because the feeding mechanism reciprocated between the positions of the front end of both folds and because it was necessary to insert the strip member reliably. In the embodiment, the continuous bag-like member 2 is fed to the folded end position by the swinging film feed arm 55, and the insertion member 62 is forcibly inserted into the notch 5 by the holding plate 58 attached to the arm 55. Because of this structure, there is no need to move the insertion member 62 up and down in synchronization with the folding operation of the folding device 40. I~ Therefore, the structure of the stock mechanism is also simple.

Note that in implementation, the member 104 is not necessarily required for the folding end receiver, but if the member 104 is provided for the folding end receiver, this receiver will be continuous between the member 104 and the opening/closing blade 102. Since the position of the folded end of the bag-like member 2 is firmly held, a part of the folded end of the bag-like member 2 is formed as a crease, etc. There is.

In addition, although the folded end holding member is the opening/closing wing 102, the folded end holding member may be rod-shaped or the like;
It is not limited to those that rotate, nor is it limited to those that are provided on both sides of the folded end position, in short, any type that holds the folded end from the inside of the folded end by wrapping a band-like member around it. Bye.

In addition, the mounting pin 57 is configured to be able to move forward and backward with the amount of advancement toward the pedestal 61 side being regulated, and to be biased toward the pedestal 61 side. 62 is also misaligned and the presser plate 58 is not lowered, so that the film feed arm 55 is not completely lowered, the mounting pin 57 resists the urging force and moves to the cradle 61.
The device may be forcibly moved to the opposite side, and this movement may activate a switch that stops the entire device. With this configuration, if the folding position shifts for some reason, it will automatically stop immediately, so it is convenient to minimize the number of defective products.

Furthermore, since the folding position can be easily adjusted by adjusting the position of the position adjustment roll 16 in the horizontal direction,
If the insertion member 62 is not inserted through the opening, the perforation 4 may be aligned with the folded end position, for example.

Furthermore, the band-shaped member is not limited to the continuous bag-shaped member 2, but may also be a band-shaped member such as a plastic sheet (and the material is not limited to plastic.

Further, in the embodiment described above, the supply mechanism 50 is attached to one drive shaft 41.
In the past, the supply mechanism 50 and the opening/closing blades 102 are mechanically connected and interlocked, but for example, the supply mechanism 50 and the opening/closing blades 102 are each equipped with a special drive source and are interlocked by sequence control. It may be configured as follows.

As described above, according to the present invention, it is possible to provide a folding device for a band-like member, which has a simplified overall configuration and is capable of folding a band-like member reliably and quickly.

[Brief explanation of drawings]

FIG. 1 is a front view showing the overall configuration of an embodiment of a folding device for band-shaped members according to the present invention combined with a bag making machine, with the frame omitted, and FIG. 2 is a plan view of the folding device. , FIG. 3 is a perspective view showing an example of a continuous bag-like member processed by the bag-making machine in the embodiment, FIG. 4 is an enlarged perspective view showing the main part of the embodiment, and FIG. A perspective view showing a folded state of the continuous bag-like member, and FIGS. 6A to 6B are perspective views showing mutually different folding operation states in the embodiment. 1.2...Glassic strip member as a strip member,
Continuous bag-like member, 3... Seal portion, 4... Perforation,
5... Notch, 10... Bag making machine, 16... Position adjustment roll, 20... Tension adjustment mechanism, 21... Dancer, 22... Reversing roll, 50... Supply mechanism, 51°
...Base end block, 53...Legs, 55...Film feed arm, 56...End press plate, 58...Press plate, 61...Stock mechanism cradle, 62... - Insertion member, 96... Base block, 101... Opening/closing arm,
102... Opening/closing wing as an end holding member, 104°
- Folding end support member, 107...stopper. Agent: Patent attorney Minoru Kinoshita (and 1 other person)

Claims (1)

[Claims] (1) The belt-shaped member is supplied to the folded end position by alternately guiding the belt-shaped member from both sides by the pressure of a pair of film feeding arms that swing alternately to the folded end position ( A feeding mechanism for the strip member, and a folding end holding member that moves back and forth from one side in the width direction of the strip member toward the folded end position of each folded end portion of the strip member are provided. A device for folding a band-shaped member, characterized in that the feeding mechanism is configured to alternately wrap the band-shaped members around the folding end holding members provided at the respective tatami edge positions.