JPH0519414B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The industrial field of application of the present invention is the field of a towel dispensing machine configured to be able to wind and feed towels with great precision. .

[Prior Art] Various types of towel dispensing machines are known that store a rolled towel, pull out the towel to a position where it can be used by a user, and automatically wind up the used towel.

In conventional towel dispensing machines of this type, the towels form a loop at the bottom of the dispensing machine and remain hanging down, but if the loop is always formed, it looks unsightly. Not only that, but the towels are also covered with dirt, which is extremely unsanitary.

Therefore, a towel dispensing machine has been proposed that automatically winds up the loop part after a certain period of time after the towel is used.

[Problems to be solved by the invention] A towel dispensing machine with such a structure requires a winding shaft for winding up used towels. It is slidably and rotatably fitted into a long hole formed in the side plate, and as the amount of used towels to be rolled up increases, the winding shaft can be moved within the long hole and the towel can be rolled up to the end. It's becoming like that.

However, in the past, both ends of the winding shaft protruded to the outside of the side plate of the device through long holes, so if there were electronic components or rotating parts on the outside of the side plate, they would come in contact with the protruding shaft. Therefore, there was a problem in that these parts and members had to be provided at a predetermined distance from the side plate, resulting in an increase in the size of the entire device.

At the same time, if the end surface of the used towel roll comes into close contact with the front surface of the side plate and brakes the rotation of the towel roll to prevent it from being taken up, and there is a space between the end surface of the towel roll and the front surface of the side plate, , the rolled towel was wound up in a so-called bamboo shoot shape, resulting in a deterioration of the appearance.

[Means for Solving the Problems] In order to solve the above-mentioned problems, in the present invention, in order to solve the above-mentioned problems, the periphery of the elongated hole formed in the left and right side plates of the device main body, into which the shaft of the rolled towel fits, is A structure is adopted in which the folded edges are bent inward, and both ends of the shaft of the rolled towel are supported in long holes between the folded edges.

[Function] When such a structure is adopted, both ends of the shaft of a used rolled towel and/or an unused rolled towel are supported between the bent edges bent toward the inside of the side plate. Therefore, both ends of the shaft do not protrude to the outside of the side plate, and mechanical parts such as electronic components and rotating members can be provided closely to the outside of the side plate, making it possible to downsize the entire device. At the same time, the inwardly bent edges become ribs of the side plate, improving the mechanical strength of the flat side plate. Further, the present invention can be employed as a support mechanism for the shaft of a rolled towel when a rolled towel is used, regardless of whether it is a manual type or an electric type.

In addition, since this bent edge only contacts the end surface of the used rolled towel wound around the take-up shaft, the frictional force is significantly reduced compared to the conventional case where the entire side plate is in contact. This makes winding easier. Furthermore, since this bent edge comes into contact with the end surface of the rolled towel, it is possible to prevent the so-called bamboo shoot-like winding, and to flatten the end surface to realize beautiful winding.

[Example] The details of the present invention will be described below based on the example shown in the drawings.

The towel dispensing machine 1 according to the present invention includes a device main body 2,
A towel receiver 3 rotatably attached to the lower front side of the device main body 2, a cover 4 capable of covering the front surface of the dispensing machine attached to the upper end of the device main body 2 so as to be openable and closable, and the dispensing machine and a mounting plate 5 for mounting the main body to a wall surface or the like.

The details of each part will be explained below.

The main body 2 has a frame 8 having a U-shaped cross section and having left and right side plates 6, 6 and a back plate 7 and is open on the front side.
Rotating frames 9, 10 are arranged outside the left and right side plates 6, 6 and at positions closer to the back. Each rotating frame 9, 10 is formed as a vertically long frame body. At the upper end of one rotating frame 9, a wide bent portion 11 having a U-shaped cross section is formed outward.

Further, an outwardly bent portion 9a is formed on the front side edge of the rotating frame 9 over almost the entire length thereof.

An "L"-shaped bent portion 9b is formed outwardly at the lower end of the rotating frame 9, and one end of the frame 12 is disposed along the outer edge of this bent portion 9b.

This frame body 12 is formed by bending a band-shaped metal plate with a stepped bent part at 90 degrees from the middle, and one end 12d of this frame body 12 and a wide band part 9c at the lower end of the rotating frame 9. A shaft 13 is horizontally suspended between the two. The outer end of this shaft 13 is a long hole 13a formed along the axial direction at the rear end of the frame 12, as shown in FIG.
It is slidably fitted inside.

A chain sprocket 14 is rotatably supported on this shaft 13 between the frame 12 and the wide portion at the lower end of the rotating frame 9.

In addition, a shaft 1 is provided at a bent portion 12a in the middle of the frame 12.
One end of the shaft 15 is fixed, and the other end of the shaft 15 projects toward the bent portion 9b at the lower end of the rotating frame 9.

A spring 16 is wound around the shaft 15, and the spring 16 is elastically loaded between the bent portions 9b and 12. Therefore, a force is applied to the bent portions 12a and 9b in the direction of separating them from each other.

Furthermore, a long hole 12b is formed in the front end of the frame 12 in the axial direction.

Further, a long hole 17 is formed at the lower end of the side plate 6 in correspondence with the long hole 12b, and a shaft 18 is slidably fitted into the long holes 12b and 17 from the outside of the frame 12. It is fixed to the side plate of the towel tray 3, which will be described later.

Two upper and lower sliding plates 19, 19 are slidably provided perpendicular to the axial direction of the rotating frame 9, penetrating the base of the bent portion 9a formed on the side edge of the rotating frame 9. ing.

A pin 20 serving as a stopper is provided at the front end of the sliding plate 19 so as to protrude from the outside of the bent piece 9.

In the middle of each sliding plate 19, a cross section cut and raised from the rotating frame 9 extends slidably through the base of an "L"-shaped bent piece 21, and extends beyond the bent piece 21. At this position, the cross section arranged parallel to the rotating frame 9 is fixed to a bent portion of an elongated support frame 22 having a "U" shape. A friction member 2 such as rubber is provided within the support frame 22.
3 are fitted and fixed over the entire length.

This friction member 23 projects toward the rear of the device.

Note that the length of this friction member 23 is the same as that of the rotating frames 9, 1.
shorter than the length of 0.

Further, a spring 24 is stretched between the bending piece 21 and the sliding plate 19, and provides a force to move the friction member 23 rearward. A screw 25 fixes the spring 24 to the sliding plate 19, and the other end of the spring 24 is fixed to a protruding piece 21a cut and raised from the bent piece 21.

The above-mentioned structure shows a mechanism for attaching the friction member 23 to the rotation frames 9 and 10, and provides forced rotation by friction with a taxi roller, which will be described later. However, the structure for forcing the taxi roller to rotate is not limited to this mechanism;
The vertical rear end edge of 0 is formed wide rearward to a position where it contacts the taxi roller, and this rear end edge itself or a rubber-like member provided on this rear end edge serves as the friction member 23. A mechanism that forcibly rotates the taxi roller by the contact friction force when the taxi roller moves up and down can also be used.

The upper end of the rotating frame 9 is rotatably supported at the base of the "L"-shaped bent portion 11 by a pin 26 that projects from the outer surface of the upper end of the side plate 6.

The position of the pin 26, which is the pivot of the rotation frames 9, 10, is located horizontally in front of the attachment position of a taxi roller 38, which will be described later, provided on the rotation frames 9, 10, and this eccentricity Therefore, when the taxi roller 38 is biased downward by the tension of the towel circulating around the taxi roller 38, the rotating frames 9, 10 move against the pin 26.
The lower end pivots toward the front using the fulcrum as a fulcrum. This rotation turns on a switch S5, which will be described later, and stops the motor drive. In addition, in conjunction with the rotation of this rotation frame, a rotation plate (described later) rotates, and an adjustment roller connected to this rotation plate moves rearward, and this movement causes the rotation frame 9 to rotate. , 10 to ensure the ON operation of the switch S5.

The other rotating frame 10 is also formed almost similarly to the rotating frame 9, but with slight differences.

That is, a U-shaped support frame 27 that is open toward the outside is integrally formed at the upper end of the rotation frame 10, and a support frame 27 that is open toward the outside is formed on the front side edge of the rotation frame 10. A bent portion 10a is formed toward the front, and a bent portion 10b is formed on the front side of the lower end.

Further, a frame 12 having the same structure as the frame 12 is arranged symmetrically along the outer edge of the bent portion 10b, and the rear end of the frame 12 and the lower end of the rotating frame 10 are arranged in a symmetrical manner. A shaft 13 is horizontally suspended between them, and the outer end of the shaft 13 is slidably fitted into an elongated hole 13a formed at the rear end of the frame 12.

A chain sprocket 14 is also rotatably supported on this shaft 13.

Further, a shaft 15 is similarly fixed at one end to a bent portion 12a in the middle of the frame 12, and the other end of the shaft 15 extends in the direction of the bent portion 10b. This axis 15
A spring 16 is wound around the bent portion 1.
Both 2a and 10b are given a force in the direction of moving away from each other.

A support frame 22 to which a friction member 23 is fixed is also attached to the rotating frame 10 side. Since its mounting structure and shape are exactly the same as those on the rotating frame 9 side, the same or corresponding parts will be given the same reference numerals to avoid redundant explanation, and the explanation thereof will be omitted.

Incidentally, an elongated hole 12b is formed along the axial direction at the front end of the frame 12 on the rotating frame 10 side, and an elongated hole 17 is formed at the lower end of the side plate 6 opposite to this. has been done. A shaft 18 is fitted into the elongated holes 12b and 17 from the outside of the frame 12, and is fixed to a side plate of the towel holder 3, which will be described later.

Note that the bent portion 12a of the frame body 12 on the rotating frame 10 side
A limit switch S5 is attached to the inside of the rear half of the frame 12 in the vicinity of the frame 12. This limit switch S5 is a switch that detects the rotational state of the rotation frame 10, as will be described later.

Furthermore, a printed circuit board P on which an electronic circuit for controlling the entire operation is mounted is fixed to the outer surface of the side plate 6 on the rotating frame 10 side.

A motor M2 is fixed to the upper end of the rotating frame 10 with its rotating shaft parallel to the axial direction of the rotating frame 10.

A worm gear 28 fixed to the output shaft of the motor M2 protrudes into the U-shaped support frame 27, and meshes with a worm wheel 28a rotatably supported on the vertical wall of the support frame 27. 9th
(see figure).

A gear 29 integrated with this worm wheel 28a
is the shaft 3 provided through the vertical wall of the support frame 27.
It meshes with a gear 31 fixed to one end of 0.

Chain sprocket 3 integrated with this gear 31
2 and a chain sprocket 14 provided at the lower end of the rotating frame 10, an endless ladder chain 33 is stretched.

The other end of the shaft 30 extends through the upper end of the rotating frame 9, and a chain sprocket 34 is fixed on the outside of the rotating frame 9.

A ladder chain 33 is stretched between this chain sprocket 34 and a chain sprocket 14 provided at the lower end of the rotating frame 9.

Therefore, when the motor M2 is rotated, the worm gear 28, the worm wheel 28a, the gears 29, 3
1, the shaft 30 is rotated, the chain sprockets 32 and 34 are rotated, and the rudder chain 33 is run.

Incidentally, the rotating frames 9 and 10 are rotated about the pin 26 as described later, and at this time, the shaft 30 integral with each rotating frame 9 and 10 is also rotated.

Therefore, an opening 6b is formed at the rear side of the upper end of the side plates 6, 6 so as not to impede the rotation of the shaft 30.

The upper end of a support plate 35 is fixed to the lower surface of the rear end of the support frame 27 at the upper end of the rotation frame 10, and limit switches S3 and S4 are mounted on the lower end of the support plate 35, facing the direction of the rudder chain 33. Fixed.

Further, the bent portion 11 and the support frame 27 at the upper end of each rotating frame 9, 10 are made to face upward by a predetermined distance beyond the upper end of the side plates 6, 6, and a top plate 36 is provided on the upper surface of the bent portion 11, 27. is fixed.

The top plate 36 covers the rear of the upper end of the frame 8,
The bent portions 36a formed at both left and right ends are located outside the bent portions 11 of the rotation frames 9 and 10 and the support frame 27.

By the way, one set of left and right rudder chains 33,3
Both ends of a taxi roller (storage roller) 38 are fixed to the rear end sides of the side plates 6, 6 of No. 3 via fixing members 37.

The circumferential surface of the taxi roller 38 is covered with a friction member such as rubber, and is fitted into a notch 6c formed in the rear edge of the side plates 6, 6 along the vertical direction.

The lower end of the notch 6c is continuous with a notch 6d facing the front side of each side plate 6,6.

Moreover, when the taxi roller 38 moves in the vertical direction, it comes into contact with the friction member 23 attached to each rotating frame 9, 10, and is rotated by the frictional force.

As is clear from Fig. 8, the taxi roller 3
Both left and right end portions 38a, 38a of 8 are formed to have a smaller cross-sectional diameter than the center portion 38b. Since the left and right end portions 38a, 38a of the small diameter contact the friction members 23, 23, the peripheral speed of the center portion 38b is higher than the peripheral speed of the end portion 38a, and as will be described later, the center portion 38
Wind up the towel wrapped around b as soon as possible,
An extrusion operation is performed.

The friction member 23 is constantly given a force in the direction of contacting the taxi roller 38 by the tensile force of the spring 24 . However, the spring 24
is only provided to ensure contact, and if the dimensions of the parts are appropriately designed, the spring 2
4 becomes unnecessary.

As described above, when the rear end edges of the rotating frames 9 and 10 are used as the friction member 23, the rear end edges bring the both ends 38a and 38a of the taxi roller 38 into frictional contact and are forcibly rotated. The central portion 38b is rotated at high speed in the same manner as above.

Incidentally, a substantially triangular rotating plate 39 is rotatably attached to the inside of each side plate 6, 6 and is rotatably supported midway through a support shaft 39b.

The support shaft 39b of the rotating plate 39 also serves as a support shaft for the take-up roller 41. An arcuate guide plate 41a is provided behind the take-up roller 41 along its periphery.

The upper end of each rotating plate 39 has a vertical hole 3.
A long hole 40 is formed in the side plates 6, 6 in the horizontal direction so as to overlap the upper end of the long hole 39a.

Pins 9d and 10d protruding from the inner surfaces of the rotating frames 9 and 10 are slidably fitted into the elongated holes 39a and 40, respectively.

Further, an adjustment roller 42 is horizontally suspended between the lower ends of the rotating plates 39, 39.

On the other hand, a motor M3 is disposed on the outside of one of the side plates 6 with its axial direction perpendicular, and a worm gear 43 fixed to its output shaft is connected to the outer end of the shaft 39b of the winding roller 41. It meshes with a worm wheel 44 fixed to.

Therefore, when motor M3 rotates, worm gear 4
3. The take-up roller 41 is rotated via the worm wheel 44, and the towel can be taken up in a roll as described below.

By the way, in the side plates 6, 6, a long hole 46 into which a used towel winding shaft 45 is fitted is formed obliquely from above the front side of the side plates 6 toward the center of the winding roller 41. There is.

The peripheral edge of the elongated hole 46 except for the upper end thereof forms a bent edge 47 that is inclined and pushed out inward.

By forming such a bent edge 47, the elongated hole 46 is located inside the inner surface of the side plate 6, and the upper end of the elongated hole 46 is open, so that used towels can be When the winding shaft 45 is horizontally mounted, it is sufficient to simply drop it into the long hole 46 from the upper end of the long hole 46 inside the side plates 6, 6, and both ends of the winding shaft 45 are projected to the outside of the side plate 6. I don't have to let it happen. Therefore, parts and the like can be effectively arranged over the entire side surface, and the device can be made smaller due to the fact that the shaft does not protrude. Furthermore, the bent edges serve as ribs on the side plates, and the mechanical strength of the side plates can be improved. In addition, since this bent edge only contacts the end surface of the used towel roll wound on the take-up shaft, the frictional force is significantly reduced compared to the conventional case where the entire side plate is in contact. This makes winding easier. Furthermore, this bent edge comes into contact with the end surface of the rolled towel, thereby preventing the so-called bamboo-shaped winding and flattening the end surface to realize beautiful winding.

On the other hand, the towel tray 3 is constructed as shown in FIG.

That is, the towel tray 3 has left and right side plates 48, 48, and a support frame 49 having an arcuate cross section is horizontally suspended between the two side plates with an opening toward the take-up roller 41.

Further, a supply roller 50 is rotatably supported between the upper ends of the side plates 48, 48 on the front side.

Bushes 52 are fitted and fixed to both ends of the supply roller 50, and are rotatably fitted onto a support shaft 51 inserted through the supply roller 50.

A plurality of small holes 5 are formed on the outer surface of this bush 52.
2a are formed on the same circumference at equal angular intervals, and a clutch plate 53 is fixed to the support shaft 51 on the outside of the bush 52.

This clutch plate 53 is formed by punching out a leaf spring, and has a plurality of arms 53a, and a protrusion 53b that fits into the small hole 52a projects from the tip of each arm 53a, as shown in FIG. When the middle support shaft 51 is rotated counterclockwise, the protrusion 53b is fitted into the small hole 52a. It rotates together with the bush 52 and rotates the supply roller 50 in the towel feeding direction, but if only the supply roller 50 is rotated in the opposite direction or in the counterclockwise direction in FIG. 5 with the support shaft 51 fixed, the clutch plate 53 is configured to slip.

Further, a screw 5 is attached to the inside of the bent portion 48a protruding outward from the side edge on the near side of one side plate 48.
4, the support plate 55 is fixed.

Then, inside this support plate 55, the side plate 4
A motor M1 is fixed to the outer surface of the motor 8.

A worm gear 56 fixed to the output shaft of the motor M1 meshes with a worm wheel 57 rotatably supported between the support plate 55 and the side plate 48, and this worm wheel 57 is connected to the support shaft 51.
It meshes with a gear 58 fixed to the outer end of.

Therefore, when the motor M1 is rotated in the towel supply direction, the supply roller 50 is rotated via these gears 56, 57, and 58.

An arc-shaped notch (cam) 52b is formed in the center of the outer surface of the bush 52, and the free end of the actuator 59 of the limit switch S1 is fitted into this notch 52b, thereby adjusting the towel supply state. The structure is such that it can be detected.

In addition, in FIG. 5, the reference numeral 60 is a bearing member that supports the other end of the support shaft 51, and the screw 61
is fixed to the outside of the side plate 48.

On the other hand, bent portions 48a, 48a formed on the front side edges of the left and right side plates 48, 48 of the towel tray 3
Openings 62 are formed at the corners of the lower end of the switch plate 63, and bent portions 64 provided at both left and right ends of the switch plate 63 are inserted into these openings 62.
The width of the bend 64 is smaller than the width and height of the opening 62 and can pivot within the opening 64.

Further, elongated holes 65 are formed in the lower part of the front sides of the side plates 48, 48 in the horizontal direction.
Projecting pieces 66a at both ends of the frame plate 66 are fitted into the frame plate 5, and are bent and fixed.

A bent portion 66b formed on the front side edge of the frame plate 66 serves as a stopper for restricting the rotation limit of the switch plate 63.

Further, a spring 67 is stretched between the bent portions 64 at both ends of the switch plate 63 and the lower part of the side plate 48, giving the switch plate 63 the ability to rotate clockwise in FIG.

Further, above one of the bent portions 64, a limit switch S2 is provided on the outer surface of the side plate 48 to detect the pressing of the switch plate 63.

Further, a limit switch S6 is provided at the upper end of the side plate 6 to detect whether the cover 4 is opened or closed.

As described above, the towel tray 3 having such a structure is arranged inside the side plates 6, 6 of the frame 8 of the main body 2, and the long hole 12b of the frame 12 and the long hole 1 of the side plate 6 are connected to each other.
The shaft 18 inserted through the side plate 7 is attached by being screwed into the lower screw hole 48b on the front side of the side plate 48.

A cover 3a is provided on the upper side of the towel tray 3 so that it can be opened and closed, and it isolates and isolates a new towel from a used towel that has been wound up, preventing them from coming into contact with each other, and preventing the used towel from getting dirty. Care has been taken to prevent it from falling and adhering to it.

On the other hand, a long hole 68 is formed below the side plates 6,6.

The rear half of the elongated hole 68 is a horizontal straight section 68a, and the front half is an arcuate section 68b that becomes higher toward the front.

A pin 69 protruding from the outer surface of the center of the rear end of the side plate 48 of the towel holder 3 is slidably fitted into the elongated hole 68 .

In the support frame 49 of the towel tray 3 having the above-described structure, there is an unused towel 7 wound into a roll.
0 is accommodated.

On the other hand, the mounting plate 5 is formed as a quadrilateral frame as shown in FIG. 1 set of horizontal frames 72,
72.

The vertical frames 71, 71 are formed symmetrically,
A first flat part 71a is formed on the inside thereof over the entire length, and on the outside thereof, a second flat part 71c is formed over the entire length in an uneven state toward the main body side via a stepped part 71b. It is formed.

Step portion 7 forming the outer edge of the first flat portion 71a
The length between 1b and 71b is approximately equal to the length of a frame 73 protruding from the back surface of the upper end of the frame 8 of the apparatus main body.

This frame body 73 is connected to the shaft 3 as shown by the chain line in FIG.
It is integrated with an elongated dish-shaped frame plate 73a surrounding the lower side of the shaft 30, and defines a space below the shaft 30 so that the shaft 30 does not come into direct contact with towels or other members.

Further, a bent portion 71d is formed at the outer edge of the second flat portion 71c at a right angle toward the device main body 2 side.

The distance between the bent portions 71d, 71d is approximately equal to the distance between the outer sides of the left and right frames 12, 12 attached to the main body.

On the other hand, the upper horizontal frame 72 is the first of the left and right vertical frames 71.
The first flat parts 71a, 71a are horizontally suspended on the upper ends of the first flat parts 71a, 71a and fixed by spot welding or the like, but the fixed position is a predetermined distance downward from the upper ends of the first flat parts 71a, 71a. It's the location.

A bent portion 72a having an L-shaped cross section is formed at the upper end of the upper horizontal frame 72 and bent upward toward the apparatus main body 2 side.

A folded portion 72b is formed at the lower edge of the upper horizontal frame 72 and folded back toward the inside.

The lower horizontal frame 72 is the first of the left and right vertical frames 71, 71.
It is fixed to the lowest end of the flat portions 71a, 71a by spot welding or the like so that the lower edges thereof are flush with each other.

Folded portions 72b are formed on the upper and lower side edges of the lower horizontal frame 72, respectively.

On the other hand, a through hole 74 is formed in the center of the upper horizontal frame 72, and through holes 75 penetrate through both left and right ends of the lower horizontal frame 72, including the first flat part 71a. It is formed by

When attaching the mounting plate 5 having such a structure to a wall surface etc., first, the through hole 7 of the upper horizontal frame 72 is
Pass screws, nails, etc. through 4 and temporarily fix it to the wall, etc.

In this state, the entire mounting plate 5 is supported by screws inserted into the through holes 74, and can freely swing in the left and right directions.

In this state, use the left and right vertical frames 71 and the upper and lower horizontal frames 72 to accurately position them according to the vertical or horizontal lines on the wall surface, and insert them into the through holes 75 formed at both ends of the lower horizontal frame 72. Screws, nails, etc. are driven in, and the screws and nails are completely fixed to the wall surface together with the temporarily fixed screws and nails inserted into the through holes 74.

After fixing the mounting plate 5 to the wall in this way,
The entire device body is lifted and suspended with the bent portion 72a of the upper horizontal frame 72 inserted under the frame body 73 protruding from the upper end of the rear end.

At this time, since the bent portions 71d, 71d of the vertical frame 71 are located outside the frames 12, 12 on the main body side,
Movement of the main body of the device from side to side is restricted.

In addition, since the total weight of the device is quite large, even if it is mounted suspended from the mounting plate 5, it will be securely fixed to the wall, and it will not swing from side to side or fall off during use. without any
Moreover, the main body of the device can be detachably attached.

Next, the operation of this embodiment configured as above will be explained.

Fig. 12 is a flowchart explaining the control operation of the towel dispensing machine, and Fig. 13 and the following are explanatory diagrams showing the operating state. The operation will be explained with reference to the following.

First, I will explain the operation during normal use.
Before use, the towel 70 and each member are arranged as shown in FIGS. 13A and 13B and FIG. 18.

That is, the towel tray 3 is housed in the frame 8, and one end of the rolled towel 70 housed in the support frame 49 of the towel tray 3 is connected to the supply roller 50.
It is led out along the outside of the towel tray 3 through the upper side, and the frame plate 66 is brought into contact with the surface of the switch plate 63.
It passes under the support frame 49, comes into contact with the lower surface of the support frame 49, passes outside the adjustment roller 42, is wound from the outside to the inside of the taxi roller (storage roller) 38 located at the upper limit, and comes into contact with the adjustment roller 42. The towel is wound around a take-up shaft 45 that passes through the inner side of the towel and is guided to the lowest end of a long hole 46 in contact with a guide 41a located on the back side of a take-up roller 41.

At this time, the take-up shaft 45 holds at least one towel.
It is in contact with the take-up roller 41 in a wound state.

In addition, in this state, the rotating plate 39 is pushed by the tension of the towel 70 and maintains a substantially vertical state, and the pins 9d and 10d are at the upper ends of the elongated holes 39a.
And it is located at the rear end of the elongated hole 40.

In this state, all drive sources are off.

In the above-mentioned set state, when the switch plate 63 is pressed from above the towel 70 in step n1 of FIG. 12, the limit switch S2 is turned on (step n2).

Then, in step n3, motors M1 and M
2 starts rotating.

As a result, in step n4, motor M1
As a result of the rotation, the supply roller 50 is rotated as shown in FIGS.
In the figure, it is rotated counterclockwise, and the motor M
13, the rudder chain 33 travels clockwise in FIG. 13, and the taxi roller 38 descends.

As a result, in step n5, a new towel is fed out and the used towel is thrown out.

At this time, the amount of the new towel to be fed out is, for example, 20 cm.
The feeding amount is determined by the supply roller 5.
It is determined and detected by the notch (cam) 52b and the limit switch S1 accompanying the rotation of the cam.

Then, in step n6, limit switch S1 is turned on, limit switch S3 is turned on, and in step n7, motors M1 and M2 are stopped.

This state is shown in FIGS. 14A and 14B and FIG. 19.

In this state, the towels are looped below the device, with new towels at the front and used towels at the back.

Then, when it is confirmed in step n8 that the limit switches S1 and S3 are on, a timer (not shown) is activated in step n9.
At step n10, the timer starts counting up to the set value.

Note that the timer is provided on the printed circuit board P side, and it is possible to set a set time within a predetermined range, that is, the time to finish wiping the hands.

After a predetermined period of time has elapsed and the user has finished wiping his/her hands, the motor M2 starts to rotate in reverse at step n11, the rudder chain 33 runs counterclockwise in FIG. The finished towels are put away. (Steps n12, n13).

When the taxi roller 38 reaches the upper end, the limit switch S4 is turned on in steps n13 and n14, and the motor M2 is stopped.

If there are still towels in this state, that is, in the intermediate stage of using the unused towel 70, step n15 is performed.
Then, the limit switch S4 is turned on, so the motor M3 rotates, the take-up roller 41 is rotated in the towel winding direction, the take-up shaft 45 in contact with it is rotated together with the towel, and the used towel is removed. It is wound up (steps n16, n17).

When the used towel is collected, the loop of the towel is released and the towel is stretched taut with a predetermined tension, so that the taxi roller 38
is located at the upper end of the rotating frames 9, 10, and a downward force is applied to it by the rotating towel, and this acting force is centered around the pin 26, which is the center of rotation of the rotating frames 9, 10. The lower end of the rotating frame is moved toward the front side, and this movement turns on the limit switch S5, stopping the motor M3 (steps n18 and n19), returning to step n1, and entering the standby state for the next use. . In order to further ensure this final operation, a shaft (not shown) is installed horizontally at the lower end of the rotating frames 9 and 10, and the towel is passed around the outside of this shaft from the bottom of the device main body to the taxi above. Since it is arranged so as to revolve around a roller, this shaft moves toward the front side due to the tension of the towel, which facilitates the aforementioned movement of the rotating frames 9 and 10 and ensures the ON operation of the limit switch S5. To install this shaft,
Chain sprocket 1 at the lower end of rotating frames 9 and 10
It is sufficient to install the shaft between 4 and 14.

On the other hand, in step n14, if there is no towel after the motor M2 stops, that is, in the final stage of the unused towel 70, the process proceeds to step n20, and as a result of the limit switch S4 being turned on, the motor M3 rotates; Since the limit switch S5 does not turn on like in the case of a hot towel, the motor M3 rotates and avoids it.

However, in this case, as a motor safety device, the rotation time of each motor in the forward and reverse directions is set to a certain period of time, for example 20 seconds, so the motor rotates for a certain period of time,
When the towel is completely wound up to the end, turn the motor M3 on.
stops (steps n21, n22).

On the other hand, in the case of continuous use, in other words, the next user presses the switch plate again immediately after the previous user has finished wiping their hands, but before winding up the used towel has started or finished. occurs.

In this state, the steps are as shown in Figure 12.
Until the state n11 is reached, the device does not cause any reaction even if the switch plate 63 is pressed, and cannot be used continuously.

However, after the timer fires, the step
When the switch plate 63 is pressed at step T1, the motors M1 and M3 start rotating simultaneously at step T2. Then, in step T3, the supply roller 5
0, the take-up roller 41 rotates, and in step T4, a new towel is fed out and a used towel is taken up at equal distances, and the process moves to the control routine starting from step n9.

Continuous use is not possible after moving to step n9 routine.

On the other hand, when the lid (cover) 4 is opened, the following control is performed.

There are two cases when opening the cover 4: when changing the towel and when simply opening the cover.

In either case, the control operation is as shown in FIG. 12.

That is, when the cover 4 is opened in step U1, the limit switch S6 is turned off in step U2, and all operations are reset in step U3.

Subsequently, the motor M2 begins to rotate in step U4, and the taxi roller 38 begins to descend in step U5.

When the taxi roller 38 descends, step U6
The limit switch S3 is turned on at step U7, and the rotation of the motor M2 is stopped at step U7.

In this state, replace the towel with a new one in step U8 or check the inside, and close the cover 4 in step U9.
At step U10, limit switch S6 is turned on.

In this state, all functions are restored and step n1
Move to the following operation.

On the other hand, the used towels are taxi roller 38,
Alternatively, if the towel is pulled at the point when it begins to be stored by the take-up roller 41, a large tensile force is applied to the towel, so first the taxi roller 38
is about to be pushed down by the downward pulling force,
Due to this torque, the lower ends of the rotating frames 9 and 10 move toward the front side with the pin 26 as the center of rotation. By moving the rotating frames 9 and 10 forward, the pin 9
Rotating plate 39, which is in an interlocking relationship via d and 10d.
39 moves so as to move the adjustment roller 42 backward using the take-up roller 41 as its center of rotation. This retreat of the adjustment roller 42 helps the rotation frames 9 and 10 move forward, and the adjustment roller 42 and the rotation frames 9,
As a result of the synergistic effect of 10, the rotating frames 9, 10
moves forward reliably, and as a result, limit switch S5 is turned on, rotation of motors M2 and M3 is stopped, and towel winding is stopped.

This operation is the operation of the safety mechanism shown in FIG. 12, which functions only when a towel is present.

By the way, when replacing the towel 70, the towel tray 3 must be pulled out.

At this time, as described above, the cover 4 is opened to stop all control operations, but the operation of the towel tray 3 itself is as follows.

That is, as shown in FIGS. 15A and 15B and 16A and 16B, the towel tray 3 is first pulled toward the front.

At this time, the pin 69 moves straight through the straight portion 68a of the long hole 68 formed in the side plates 6, 6, and the shaft 18 advances through the long hole 12b of the frame 12 and the long hole 17 of the side plates 6,6.

With the towel tray 3 pulled out to the front as much as possible in this way, the shaft 1
When the entire towel tray 3 is rotated counterclockwise in the figure with 8 as the center, the pin 69 moves in the arcuate portion 68b of the elongated hole 68, and the towel tray 3 is rotated toward the front and opened.

As the towel tray 3 rotates like this, the shaft 1
The frame body 12 is pulled toward the front via the frame 8, and the lower ends of the rotating frames 9 and 10 are also pulled toward the front. As a result, the pins 9d and 10d also move toward the front, so the elongated hole 39
The rotary plate 39, which is in an interlocking relationship via a, is rotated counterclockwise as shown in FIGS. 15A and 15B and FIGS. 16A and B.

As a result, the adjustment roller 42 moves to the rear of the frame 8.

As a result of this rearward movement of the adjustment roller 42, the space within the frame 8 is opened, and when replacing a new towel, the operation of attaching the towel to the winding shaft 45 and the operation of wrapping it around the taxi roller 38 are extremely easy. Become.

After replacing the towel in this way, return the towel tray 3 to its original state and close the cover 4, the device returns to a state where it can be started immediately, and the control operation as shown in FIG. 12 is performed. It becomes possible.

By the way, during the vertical movement of the taxi roller 38, the taxi roller 38 moves in contact with the friction member 23, so the taxi roller 38 is forcibly rotated, so there is less friction during the storage operation of the towel 70. Allows for smooth storage of towels. Furthermore, as a result of the left and right ends 38a, 38a of the small diameter portion coming into contact with the friction member 23, the circumferential speed of the center portion 38b, which is the large diameter portion, becomes extremely high, forcing the towel wrapped around the center portion 38b to be taken out and put in. Moreover, it can be done at high speed. Therefore, even if the gap between the taxi roller 38 and the back plate (not shown) of this dispensing machine is small, the towel inserted through the gap will be folded into the gap due to the contact resistance with the back plate and will not be pulled. Such phenomena do not occur, and the operation of putting in and taking out towels is performed smoothly.

In other words, when the taxi roller 38 is descending, the taxi roller 38 is rotating at high speed in a direction to feed out the towel downward, and the towel between the adjustment roller and the taxi roller is under tension due to this rotational tension. The towel comes into close contact with the circumferential surface of the taxi roller 38, increasing the frictional force for feeding out the towel, thereby ensuring that the towel is fed downward. Therefore, the phenomenon of towel sagging inside does not occur. Furthermore, when the taxi roller 38 rises, the towel is sent out from the taxi roller 38 to the adjustment roller at high speed, reducing the tension of the towel traveling to the take-up roller, reducing the winding torque of the take-up roller, and reducing the winding process. Can be performed reliably under load.

[Effects] As is clear from the above description, according to the present invention, in a towel dispensing machine that loads unused rolled towels and/or used rolled towels and supplies unused towels, the device main body The periphery of the elongated hole formed in the left and right side plates is bent inward toward the side plate to form a bent edge, and the rolled towel is placed in the elongated hole surrounded by the bent edge. Since both ends of the winding shaft are rotatably fitted together, both ends of the winding shaft do not protrude outside the side plate, allowing various mechanical parts, such as electronic parts, to be attached to the outside of the side plate. , a rotating member, etc. can be provided close to the outside of the side plate, and the entire device can be miniaturized. At the same time, the bent edges of the elongated holes serve as ribs on the side plates, thereby improving the mechanical strength of the side plates. Furthermore, the present invention can be used in towel dispensing machines that use rolled towels, regardless of whether they are unused towels or used towels, and can be applied to both electric and manual dispensing machines. etc., it has extremely high practical effects.

Further, since only the folded edge contacts the end surface of the towel, winding and rotation are performed smoothly, and at the same time, there is an advantage that the rolled towel can be formed into a beautiful cylindrical shape instead of a bamboo shoot shape.

[Brief explanation of the drawing]

The figure explains one embodiment of the present invention.
The figure is an overall perspective view, Figure 2 is a perspective view with the cover removed, Figure 3 is a perspective view explaining how the rotating frame is attached, Figure 4 is an exploded perspective view, and Figure 5 is a perspective view of the towel tray. 6 is an exploded perspective view, FIG. 6 is a perspective view illustrating the mounting state of the rotating frame and rotating plate, FIG. 7 is a perspective view illustrating the mounting structure of the friction member, and FIG. 8 is a perspective view illustrating the mounting structure of the taxi roller. 6, FIG. 9 is a sectional view taken along line A-A in FIG. 2, FIG. 10 is a sectional view taken along line B-B in FIG. 12 is a flowchart explaining the control operation; FIGS. 13A, B to 17A, B are side views and vertical side views explaining the operation, and FIGS. Figure 20 is a side view explaining the operating status of each switch, Figure 21 is a front view of the mounting plate,
FIG. 22 is a sectional view taken along the line E--E in FIG. 21. 1...Towel dispensing machine, 2...Device body, 3...
Towel tray, 4...Cover, 5...Mounting plate, 6...
...Side plate, 8, 12... Frame, 9, 10... Rotating frame, 9d, 10d... Pin, 14, 31... Chain sprocket, 17, 68... Long hole, 18...
... shaft, 22 ... support frame, 23 ... friction member, 33
...Rudder chain, 38...Taxi roller,
39... Rotating plate, 41... Winding roller, 42...
... Adjustment roller, 45 ... Winding shaft, 46 ... Long hole, 47 ... Folding line, 49 ... Support frame, 50 ...
Supply roller, 63... Switch plate, 70... Towel, M1-M3... Motor, S1-S6... Limit switch.

Claims (1)

[Claims] 1. In a towel dispensing machine that supplies unused towels by loading unused rolled towels and/or used rolled towels, a long hole is provided in the left and right side plates of the device body, and a hole is provided around the long hole. is a bent edge that is inclined and bent inward,
A rolled towel support mechanism for a towel dispensing machine, characterized in that both ends of the shaft of the rolled towel are slidably and rotatably fitted into the long hole surrounded by the bent edge.