JPH01201217A - Towel distributing machine - Google Patents

Abstract

PURPOSE:To prevent a towel from being teared and to prevent the tooth of a gear for communicating a rotation force from being damaged when the force more than the force set beforehand is added in the winding direction or the rewinding direction of the towel by providing a clutch mechanism at a winding roller and a supply roller. CONSTITUTION:When a towel is hung, not wound and only a supporting shaft 39b is rotated, a clutch plate 80 is away from a clutch plate 81 against the force of a spring 85, only the supporting shaft 39b is rotated, a cylinder 95 keeps the position as it does and the large load is not added to a worm wheel 44. When a user erroneously pulls out the towel with hands, the cylinder 95 is rotated, and therefore, when the torque exceeds the value specified beforehand, a clutch plate 50 is away from the clutch plate 81 against the force of the spring 85, only the cylinder 95 is rotated, and therefore, the supporting shaft 39b is not rotated and the large load is not added to the worm wheel 44. Thus, the damage of the towel and the damage of the gear for communicating a motive power do not occur.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a towel dispensing machine, and more specifically, when a force greater than a preset force is applied in the towel winding direction or unwinding direction, This invention relates to a towel arrangement configured to prevent the towel from tearing and the teeth of the gear for transmitting rotational force from being damaged.

[Prior Art] A towel dispensing machine is known that stores a rolled towel, pulls out the towel to a position where it can be used by a user, and automatically winds up the used towel.

Among these types of towel placement machines, there are manual types and electric types.

[Problems to be solved by the invention] However, if the towel gets stuck in the dispensing machine, whether it is a manual fan type or an electric type, the towel cannot be pulled out if it is pulled forcibly, so the towel will tear. There is a problem that the dispensing machine may fall or the entire dispensing machine may fall.

Additionally, if a user accidentally pulls out a used towel, excessive force may be applied to the teeth of the gear V, such as the worm gear, which transmits power to the take-up roller, causing damage to the teeth. be.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a set of clutch teeth in the middle of the support shafts for power transmission of the take-up roller and the supply roller; The clutch teeth are provided on the power transmission support shaft so as to be movable over a predetermined distance in the thrust direction, and are biased by a spring in the direction of the other clutch tooth. In addition to being rotatably attached to the shaft, we adopted a structure in which it is integrated with a cylindrical body that is placed over the support shaft for transmitting the +JJ force and around which a towel is wrapped.

[Function] When the above-described structure is adopted, one set of clutch teeth are engaged in the normal towel-feeding state, so that the rotational force in the towel-feeding direction is reliably transmitted.

On the other hand, if the user pulls the towel incorrectly,
If the towel gets stuck or gets caught, a large torque is applied to the cylinder around which the towel is wrapped, and if this torque exceeds a preset value, one of the clutch teeth that can move in the thrust direction will It climbs over the teeth of the other clutch tooth and moves in a direction away from the other clutch tooth against the pressure of the spring, and the power transmission shaft and the cylinder around which the towel is wrapped become free and can rotate relative to each other. , so that no excessive force is applied to the power transmission gear etc. fixed to one end of the power transmission shaft, and the R1 of the tooth is
There is no occurrence of IO, and no damage to the towel occurs.

When the external force is released, the separated clutch tooth is pushed by the force of the spring and meshes with the other clutch tooth, returning to its original state and entering the power transmission state.

[Example] Hereinafter, the present invention will be described in detail with reference to the example shown in the drawings.

The towel placement machine 1 according to the present invention includes a device body 2, a towel tray 3 rotatably attached to the lower front side of the device body 2, and a towel placement device attached to the upper end of the HH body 2 so as to be openable and closable. It consists of a cover 4 that can cover the front surface, and a mounting plate 5 for attaching the main body of the dispensing machine to a wall surface or the like.

The details of each part will be explained below.

The main body 2 has a frame 8 with a "U"-shaped cross section and an open front side, which has left and right side plates 6, 6 and a back plate 7. A frame 78, which will be described later, is provided at the upper rear part, and a frame member 78, which will be described below, is provided at the lower part. A lower reinforcing plate 98 is fixed, and a rotating frame 9.10 is arranged outside the left and right side plates 6°6 and at a position closer to the actual measurement. Each rotating frame 9.10 is formed as a vertically elongated 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, a bent portion 9a is formed outwardly over almost the entire length of the front side edge of the rotating frame 9.

At the lower end of the rotating frame 9, there is a "C" shaped 1h curved part 9 b lf
i is formed outward, and one end of the frame 12 is disposed along the outer edge of this fold 119b.

This frame 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 12 and the wide part 9C at the lower end of the rotating frame 9. A shaft 13 is horizontally suspended between them. As shown in FIG. 3, the outer end of the shaft 13 is slidably fitted into a long hole 13a formed in the rear end of the frame 12 along the axial direction.

A chain sprocket 14 is rotatably supported on this shaft 13 at a distance of 1 m between the frame 12 and the wide portion at the lower end of the rotating frame 9.

Further, one end of a shaft 15 is fixed to a bent portion 12a in the middle of the frame 12, and the other end of this f1!115 is fixed to a rotating frame 9.
It protrudes toward the bent portion 9b at the lower end.

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.

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

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

Two upper and lower sliding plates 19 and 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 9a.

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 the rLJ-shaped bent piece 21, and at a position beyond the bent piece 21, An elongated support frame 22 arranged parallel to the rotation frame 9 and having an rUJ-shaped cross section
It is fixed to the bent part of. Inside the support frame 22, there is an I! l! 10 members 23 are fitted and fixed over the entire length.

This friction member 23 protrudes toward the rear of the B position.

In addition, this I'j! The length of the rubbing member 23 is the same as that of the rotating frames 9 and 10.
shorter than the length of

Further, a spring 24 is stretched between the bending piece 21 and the sliding plate 19, and provides a force for moving the friction member 23 rearward. The reference numeral 25 indicates a spring 24.
The other end of the spring 24 is fixed to a protruding piece 21a cut and raised from the bent piece 21 with a screw that fixes the spring 24 to the sliding plate 19 side.

The above-mentioned M4 structure shows a mechanism for attaching the friction member 23 to the rotating frames 9 and 10, and is connected to the taxi roller described later.
! ? ! Forced rotation is given by to. However, the structure for giving forced rotation to the taxi roller is not limited to this mechanism, and the yielding rear end edge of the rotating frame 9° 10 is formed wide on the rear side to the position where it contacts the taxi roller,
This rear edge itself or a rubber-like member provided on this rear edge serves as the friction member 23, and when the taxi roller moves up and down, the friction force of the contact 1f forces the taxi roller to rotate. A mechanism to do this is also available.

Further, the upper end of the rotating frame 9 is rotatably supported at the end of the rLJ-shaped bent portion 11 by a pin 26 protruding from the outer surface of the upper end of the side plate 6.

The position of the pin 2G, which is the pivot of the rotation frames 9 and 10, is located horizontally in front of the mounting position of a taxi roller 38, which will be described later, provided on the rotation frames 9 and 10. Due to the eccentricity, when the taxi roller 38 is biased downward by the tension of the towel circulating around the taxi roller 38, the rotating frames 9 and 10 rotate around the pin 26 as a fulcrum. Rotate so that the lower end swings toward the front. This rotation turns on a switch S5, which will be described later, and stops the motor drive. Further, in conjunction with the rotation of the rotation frame, the rotation plate to be imitated rotates, and the adjustment roller connected to this rotation plate moves rearward, and this movement causes the rotation frame 9 , 10 to facilitate the on-operation of the switch S5.

The other rotating frame 10 is also formed almost similarly to the rotating frame 9, but is slightly different.

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. Facing the bending part 10a
is formed, and a bent portion 10b is formed on the front side of the lower end portion.

Further, the frame body 12 is
A frame body 12 having the same structure as J3 is arranged in a symmetrical state, and a shaft 13 is horizontally suspended between the rear end of this frame body 12 and the lower end of the rotating frame 10. The outer end of the frame body 12 is slidably fitted into a long hole 13a formed at the rear end of the frame body 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 is fixed to a bent portion 12a.
It extends in the b direction. A spring 16 is wound around this shaft 15, and a force is applied to both the bent portions 12a and 10b 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 parts or corresponding parts are given the same reference numerals to avoid duplication of explanation, and
Details are omitted.

By the way, a long hole 12b is formed along the axial direction at the front end of the frame 12 on the rotating frame 10 side, and an & hole 17 is formed at the lower end of the side plate 6 opposite to this. has been done. From the outside of the frame 12, @18
is 10! and fixed to the side plate of the towel holder 3, which will be described later.

Note that a limit switch S is installed inside the rear half of the frame 12 near the bent portion 12a of the frame 12 on the rotating frame 10 side.
5 is installed. 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.

Worm gear 28 fixed to the output shaft of this motor M2
protrudes into the U-shaped support frame 27, and the support frame 2
Worm wheel 2 rotatably supported on the vertical wall of 7
8a (see Figure 9).

A gear 29 integrated with the worm wheel 28a meshes with a gear 31 fixed to one end of a shaft 30 provided through the vertical wall of the support frame 27.

An endless ladder chain 33 is stretched between the gear 31, an integral chain sprocket 32, and a chain sprocket 14 provided at the lower end of the rotating frame 10.

The other end of the shaft 30 extends through the two ends of the rotating frame 9, and is connected to the chain sprocket 34 on the outside of the rotating frame 9.
is fixed.

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,
Shaft 3 via worm wheel 28a1 gear 29.31
0 is rotated, the chain sprockets 32 and 34 are rotated, and the ladder chain 33 is run.

By the way, the rotating frames 9 and 10 are attached to the pin 2 as described later.
It is rotated around G, but at this time each rotation frame 9.1
The shaft 30 that is integral with 0 is also rotated.

Therefore, in order to prevent rotation of the shaft 30 from being obstructed, an opening 6b is formed at the back of the upper end of the side plate 6.6.

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 the lower end of this support plate 35 has limit switches 33 and 34 facing toward the ladder chain 33. is 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, and 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 21. .

By the way, both ends of a taxi roller (storage roller) 38 are fixed to the rear end sides of the side plates 6, 6 of the left and right ladder chains 33, 33 via a fixing member 37.

The peripheral surface of the taxi la 38 is covered with a friction member such as rubber, and is fitted into a notch 6C formed along the vertical direction on the rear edge of the side plates 6, 6.

The lower end of the notch 6C is continuous with the notch 6d facing the front side of each side plate 6.6.

Further, 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 H vibration force.

As is clear from FIG. 8, both left and right end portions 38a, 38a of the taxi roller 38 are formed to have a smaller cross-sectional diameter than the central portion 38b. Since the left and right end portions 38a, 38a of the small diameter contact the friction member 23.23, the circumferential speed of the center portion 38b is higher than the circumferential speed of the end portion 38a, and as will be described later, the towel wrapped around the center portion 38b is The winding and unwinding operations are performed as quickly as possible.

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 provided only to ensure contact, and if the dimensions of the members are appropriately designed, the spring 24 becomes unnecessary.

As mentioned above, the rear edge of the rotating frame 9.10 is moved to I! In the case of the friction member 23, this rear edge allows the taxi-O
- Both ends 38a, 38a of the rubber 38 are I! l! They are forcibly rotated through frictional contact, and the central portion 38b is rotated at high speed in the same manner as described 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 rotary plate 39 also serves as a support shaft that is a power transmission shaft of a winding roller 41 having a structure as described below. An arcuate guide plate 41a is provided behind the take-up roller 41 along its periphery.

A long hole 39a is formed vertically at the upper end of each rotary plate 39, and a long hole 40 is formed horizontally in the side plates 6, 6 with the long hole 39a in the upper end. ing.

A pin 9 protrudes from the inner surface of each rotating frame 9, 10.
d and 10d are fitted into these long holes 39a and 40 so as to be movable.

Further, an adjustment roller 42 is horizontally suspended between the lower ends of the rotating plates 39 and 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 a shaft that is a power transmission shaft for the winding roller 41. It meshes with a worm wheel 44 fixed to the outer end of 39b.

Therefore, when the motor M3 rotates, the take-up O-roller 41 is rotated via the worm gear A743 and the worm wheel 44, and the towel roll can be taken up as described later.

By the way, the winding roller 41 is constructed as shown in FIGS. 30 to 36.

That is, a pair of clutch plates 80 and 81 are fitted on one end side of the support shaft 39b, which is a power transmission shaft, near the side to which the worm wheel 44 is fixed.

One clutch plate 80 has a plurality of teeth 80a having an angle of 60 degrees formed at a predetermined pitch on the end face toward the other clutch plate 81, and a tapered cylinder 80b that becomes thinner toward the tip protrudes on the other end face. It is set up. This tapered cylinder 80b has opposing elongated notches 80c, 80c formed from its base end to its distal end.

On the other hand, the support shaft 39b has two pins 82.
83 are fitted and fixed. The upper and lower ends of the pin 83 located on the worm wheel 44 side are cut out at 80c and 8.
It is slidably fitted into 0c.

Therefore, although the clutch plate 80 can move in the axial direction, it cannot rotate relative to the support shaft 39b, but rotates integrally with the support shaft 39b.

A washer 84 is located inside the other wooden pin 82, and a spring 85 has one end in contact with this washer 84.
is wrapped around the outer periphery of the tapered cylinder 80b, and the clutch plate 80
On the other hand, a pressing force is applied in the direction of the worm wheel 44.

The other clutch plate 81 also has teeth 81a of the same shape and number as the teeth 80a on the end face facing the clutch plate 80, a pair of protrusions 81b, 81b on the other end face, and a support shaft 39.
b.

On the other hand, a roller joint 86 is rotatably fitted to the support shaft 39b on the side of the clutch plate 81 facing the protruding piece 81b. Roller joint 86 is clutch plate 81
It has a cylindrical part 86a having the same diameter as the cylindrical part 86a, and has seven flange 86b at its end on the worm wheel 44 side. Cylindrical part 86
Grooves 86c, 86c into which protrusions 81b, 81b of the clutch plate 81 fit are formed at the tip of the columnar part 8.
Grooves 86c and protrusions 8 are formed on the outer peripheral surface of 6a in correspondence with grooves 86c, 86c.
6d and 86d are formed over the entire length.

Also, on the outer surface of the 7 flange 86b, there is a circumferential surface along the axial direction. ! A cylindrical joint 86f having two or more serrations 86e is formed.

A bearing member 9G is arranged outside the joint 86r. The bearing member 96 is rotatably supported on the support shaft 39b, is formed in a cylindrical shape, and has a flange 96a that is slightly wider than the flange 96a on the side facing the seventh flange 86b.

The bearing member 96 is rotatably fitted into the joint 86f.

The reason why the flange 96a is made one size larger than the seventh flange 86b of the roller joint 86 is that the flange 96a is made to protrude one size larger at both ends of the cylindrical body 95, as shown in FIG. This is to make wrapping easier and to prevent the towel from sliding sideways.

On the other hand, a cylindrical support member 90 is rotatably fitted into the center of the support shaft 39b. In order to reduce the weight of the support member 90, a plurality of notches 90a are formed on the inner surface thereof.
is formed, and both ends of the support member 90 are supported by a support shaft 39b.
l,: Supported by the fitted E-rings 91, 92 and prevented from shifting.

The outer diameter of the support member 90 is equal to the cylindrical portion 8 of the roller joint 86.
It is almost the same as the outer diameter of 6a.

Further, another roller joint 93 is rotatably supported at the end of the support shaft 39b opposite to the worm wheel 44.

The roller joint 93 is formed in almost the same shape as the roller joint 86, and has a cylindrical portion 93a and a flange 93b.
, and a protrusion 93c is provided on the outer circumferential surface of the columnar portion 93a.
, 93c are formed. And 7 lunges 93
A cylindrical portion 93d is also formed on the outer side of b, and this cylindrical portion 93d is supported on the bearing 60 side. The outer diameters of the cylindrical portion 93a and the flange 93b are approximately the same as the outer diameters of the cylindrical portion 86a1 and the flange 86b of the roller joint 86.

On the other hand, the one designated by the reference numeral 94.94 is an inner cylinder divided into two parts, and the curvature of the inner circumferential surface thereof is the same as that of the roller joint 86.
The curvatures of the outer circumferential surfaces of the cylindrical portions 86a and 93a of 93 and the supporting member 90 are the same. In addition, the wall thickness of the inner cylinder 94.94 is the protrusion 86d, 93c of the roller joint 86.93.
It is almost the same height as .

A protrusion 94a is formed on the outer circumferential surface of each of the inner cylinders 94, 94 at the center in the circumferential direction and extending over the entire length in the force direction. Both ends of these inner cylinders 94 and 94 are O
- The cylindrical portions 86a and 93a of the la joint 86, 93 are stacked on the outer circumferential surface with the protrusions 86d and 93c sandwiched therebetween, respectively, and the central portion is stacked on the outer circumferential surface of the support member 90.

On the other hand, a cylindrical body 95 is fitted onto the outer peripheral surfaces of the inner cylinders 94, 94. The outer peripheral surface of the cylindrical body 95 is roughened by forming fine irregularities along the axial direction, thereby increasing the frictional force against the towel.

Further, on the inner circumferential surface of the cylinder body 95, grooves 95a, 95a, into which protrusions 94a formed on the circumferential surface of the inner cylinder 94.94 fit, are formed facing each other over the entire length.

Since the winding roller 41 has the above-described structure, it has the following functions.

If the latch gate mechanism is adopted as described above, if the towel gets caught and cannot be rolled up for some reason during towel winding, and only the spindle 39b rotates, the clutch plate 80 resists the force of the spring 85 and closes the clutch. Since it is separated from the plate 81 and only the support shaft 39b rotates, and the cylindrical body 95 remains in the same position, no large load is applied to the worm wheel 44, no tooth loss occurs, and the administrator can easily cover the worm wheel 44. You can easily eliminate the snag by pulling the towel slightly.

Furthermore, if the user mistakenly attempts to pull out the towel by hand, the cylindrical body 95 will try to rotate, and if the torque exceeds a predetermined value, the clutch plate 50 will resist the force of the spring 85 and become a clutch. Away from the plate 81, the cylindrical body 9
5 only rotates, the support shaft 39b does not rotate, no large load is applied to the worm wheel 44, and no damage to the teeth occurs.

Incidentally, a long hole 46 into which a used towel winding shaft 45 is fitted is formed diagonally from above on the front side of the side plates 6 toward the center of the winding roller 41 in the middle of the side plates 6, 6. 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 placed outside of the side #i6. Don't let it stick out. 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. Moreover, the bent edge becomes a rib of the side plate, and the mechanical strength of the lateral root can be improved. 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, 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 excellent 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 between them a support frame 49 having an arcuate cross section is connected to the take-up roller 41.
It is suspended horizontally with its opening facing the direction.

Further, a supply roller 50 having a structure to be described later is rotatably supported between the upper ends of the side plates 48 and 48 on the near side.

Further, a support plate 55 is fixed by screws 54 to the inside of a bent portion 48a protruding outward from the front side edge of one side plate 48.

A motor M1 is fixed to the outer surface of the side plate 48 inside the support plate 55 (see FIG. 4).

Worm gear A7 (
(not shown) is engaged with a worm wheel 57 rotatably supported between the support plate 55 and the side plate 48, and this worm wheel 57 is engaged with a gear 58 fixed to the outer end of the supply roller 50. ing.

Therefore, when the motor M1 is rotated in the towel supply direction, the supply roller 5o is rotated via the worm wheel 57 and gear 58.

A cam 56 having an arc-shaped cutout 56a is fixed to the outer surface of the worm wheel 57, and the actuator 5 of the limit switch S1 is inserted into the cutout 56a.
The free ends of the towels 9 are fitted to form a structure in which the supply state of the towel can be detected.

5 is a bearing member that supports the other end of the supply roller 50, and is fixed to the outside of the side plate 48 with screws 61.

By the way, the supply roller 50 is constructed as shown in FIGS. 23 to 29. Since the structure of the supply roller 50 is almost the same as that of the aforementioned take-up roller 41, the 30th
Components that are the same as those in FIGS. 36 to 36 are designated by the same reference numerals, and their descriptions will be omitted to avoid duplication.

A washer 87 is applied to the end face of the joint 86f,
The E-ring 88 holds the roller joint 8G in a predetermined position so that it does not shift.

This joint 86rG is fitted with a female joint 89. This joint 89 is rotatably fitted to the support shaft 39c and is formed into a cylindrical shape, and has serrations 89a formed on the inner circumferential surface thereof into which the joint 86f is fitted. A gear 58 is attached to the outer end of this joint 89.
The cylindrical portion 58a is fitted, and the gear 58 is fitted and fixed to the end of the support shaft 39c.

Therefore, the clutch plate 81, roller joint 86, and joint 89 cannot move in the axial direction of the support @39c, but can rotate together with respect to the support shaft 39c.

Since the supply roller 50 has the above-described structure, it has the following functions.

That is, normally the clutch plate 8o is pushed by the spring 85, and the teeth 80a, 81a of the clutch plates 80, 81 are in a state of meshing with each other. Therefore, when the support shaft 39c is rotated via the gear 58 due to the rotation of the motor M1, the pin 8
3, the clutch plate 80 is rotated, the roller joint 86 and the joint 89 are rotated via the clutch plate 81 which is meshed with the clutch plate 80, and the inner cylinders 94, 94, the cylinder body 95, and the roller joint 93 are rotated. It is rotated and towels are supplied.

Furthermore, if the user mistakenly attempts to pull out the towel by hand, the cylindrical body 95 will try to rotate, and if the torque exceeds a predetermined value, the clutch plate 80 will resist the force of the spring 85 and the clutch plate 95 will rotate. Away from 81, cylinder body 95
Since only the support shaft 39c rotates, the gear 58 does not rotate.
No large load is applied to the teeth, and tooth loss (mouth) does not occur.

Conversely, even if the support shaft 39c is rotating due to the rotation of the motor M1, the clutch plate 80 may be separated from the clutch plate 81 in the same manner if the towel is caught or clogged and the cylinder body 95 cannot rotate. , since only the support shaft 39c rotates, no large load is applied to the gear 58, and
You can easily clear the blockage by pulling the towel slightly with your hands.

On the other hand, frontage portions 62 are formed at the lower end corners of the bent portions 48a and 488 formed on the front side edges of the left and right side plates 48 and 48 of the towel tray 3, and these openings 62 There are bent parts 6 provided at both left and right ends of the switch plate 63.
4 is inserted. The width of the bent portion 64 is smaller than the width and height of the frontage portion 62 and can rotate within the opening 62.

Further, elongated holes 65 are formed in the lower part of the front side of the side plates 48, 48 in the horizontal direction, and inside these elongated holes 65, the frame plate 6
The protruding pieces 66a at both ends of 6 are fitted, bent and fixed.

A bent portion 66b formed on the front side edge of this frame plate 66
is the switch plate 63 (which acts as a stopper to limit the movement limit to 75 times).

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, on the upper side of 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 the fill-open state of the cover 4 (18th limit switch S6).
(see figure).

As described above, the towel tray 3 having such a structure is arranged inside the side plate 6.6 of the frame 8 of the main body 2, and is attached to the frame 1.
The shaft 18 inserted through the long hole 12b1 of the second long hole 12b1 and the long hole 17 of the side plate 6 is attached by being screwed into the lower screw hole 48b on the front side of the side plate 48.

A cover 38 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 this elongated hole 68 is a horizontal straight part 68a, and the front half is an arcuate part 68b that becomes higher toward the front.
It becomes.

A bin 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 .

An unused towel 70 wound into a roll is accommodated in the support frame 49 of the towel holder 3 having the above-described structure.

On the other hand, the mounting plate 5 is formed as a quadrilateral frame as shown in FIG. It is composed of a pair of horizontal frames 72 and 72.

The vertical frame 71.71 is formed symmetrically, and a first flat part 71a is formed on the inside thereof over the entire length, and a first flat part 71a is formed on the outside thereof toward the main body side via a stepped part 71b. A second flat portion 71C is formed over the entire length.

A stepped portion 71b forming an outer edge of the first flat portion 71a,
The length between 7Ib and 7Ib 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.

As shown by the chain line in FIG. 4, this frame body 73 is integrated with an elongated dish-shaped frame plate 73a surrounding the lower side of @30, so that the shaft 30 does not come into direct contact with towels or other members. The space below the shaft 30 is defined as follows.

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 horizontally suspended over the upper ends of the first flat parts 71a and 71a of the left and right vertical frames 71 and is fixed by spot welding or the like, but the fixed position is at the first flat part 71a. This is a position that is a predetermined distance downward from the upper end of the flat portions 71a, 71a.

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 device main body 2 side.

A folded part 72b folded inward is formed at the lower edge of the upper horizontal frame 72.

The lower horizontal frame 72 is fixed to the lowermost ends of the first flat parts 71a, 71a of the left and right vertical frames 71, 71 by spot welding or the like so that its lower edges 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 or the like, first, screws, nails, etc. are passed through the through holes 74 of the upper horizontal frame 72 and the mounting plate 5 is temporarily fixed to the wall surface or the like.

In this state, the entire mounting plate 5 is supported by screws inserted into the through holes I4, 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, lift up the entire device body, and insert the bent portion 72a of the upper horizontal frame 72 under the frame 73 protruding from the upper end of the rear end. Hang it in a closed position.

At this time, since the bent portions 71d, 71d of the vertical frame 71 are located outside the frame 12.12 on the main body side, the left and right movement of the apparatus main body is restricted.

In addition, since the main body of the device is quite large, even if it is hung from the mounting plate 5, it will be securely fixed to the wall and will not sway from side to side when in use.
The main body of the device can be attached and detached without falling off.

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

Figure 12 is a flowchart explaining the control operation of the towel dispensing machine, and Figures 13 and below are explanatory diagrams that do not show operating states. The operation will be explained with reference to.

First, the operation during normal use will be explained. Before the start of use, the towel 70 and each member are shown in FIG. 13(A).
, (B) and as shown in FIG.

That is, the handle receiver 3 is housed within the frame 8,
One end of the rolled towel 70 accommodated in the support frame 49 of the towel tray 3 passes above the supply roller 50 and is led out along the outside of the towel tray 3, and comes into contact with the surface of the switch plate 63 and is placed on the frame plate 66. and passing under the lower reinforcing plate 98,
It passes around the outside of 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 goes around below the adjustment roller 42 and is positioned on the back side of the take-up roller 41. The winding shaft 45 is wound around a winding shaft 45 that is guided to the lowest end of the elongated hole 46 in contact with a guide 41a.

At this time, the take-up shaft 45 is in contact with the take-up roller 41 with the towel wrapped at least once.

Further, in this state, the rotating plate 39 maintains a nearly vertical state.

In this state, all drive sources are off.

In the set state described above, first in step n1 of FIG. 12, when the switch plate 63 is pressed from above the delta luer 0, the limit switch S2 is turned on (step n2).
).

Then, in step n3, motors M1 and M2 start rotating.

As a result, in step n4, as a result of the rotation of the motor M1, the supply roller 50 is rotated counterclockwise in FIGS. 13 and 18, and the ladder chain 33 is run clockwise in FIG. 13 due to the rotation of the motor M2. Then, the taxi 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 feed distance of the new towel is determined to be, for example, 20 cm, and the feed distance is determined and detected by the notch 56a accompanying the rotation of the supply roller 50 and the limit switch S1.

Then, in step n6, limit switch S1 is turned on, limit switch $3 is turned on, and step n
At 7, motors Ml and M2 stop.

This state is shown in FIGS. 14(A) and 14(B) 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, in step n8, the limit switch S1,
IRL that 83 is on! If so, step n9
A timer (not shown) is activated in 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 can set a set time within a predetermined range, that is, the time to finish wiping the hands.

After the predetermined time has elapsed, in step n11 motor M2
begins to reverse, the ladder chain 33 runs counterclockwise in FIG. 20, and the taxi 38 begins to rise.
The used towels are stored (step n12.
n13).

When the taxi roller 38 reaches the upper end, step n1
3. At n14, limit switch S4 is turned on and motor M2 is stopped.

If there is still a towel in this state, that is, in the intermediate stage of using the unused towel 70, the process advances to step n15, where the limit switch S4 is turned on, the motor M3 rotates, and the winding roller 41 is moved in the towel winding direction. The winding shaft 45 in contact with the towel is rotated together with the towel, and the used towel is wound up (step n16゜n
11).

When the used towel is collected, the loop of the towel is released and the towel is stretched taut with a predetermined tension.As a result, the taxi roller 38 is at the upper end position of the rotating frame 9.10. A downward force is applied to it by the rotating towel, and this acting force is applied to the rotating frames 9 and 1.
The lower end of the rotating frame is moved toward the front side around the pin 26, which is the center of rotation of the motor, and this movement turns on the limit switch S5 and stops the motor M3.Step n1
8. n19), the process returns to step n1 and becomes the samurai doctor state for the next use. In order to further ensure this final operation, a shaft (not shown) is installed horizontally at the bottom of the rotating frame 9.1o, and the towel is passed from the lower surface of the device main body to the outside of this shaft and upward. The towel is arranged so that it revolves around the taxi rollers, so the tension of the towel causes this axis to move toward the front.
It may also be possible to encourage the movement of the rotating frames 9 and 10 to ensure that the limit switch S5 is turned on.

To install this shaft, just insert it between the chain sprockets 14 and 14 at the lower end of the rotating frame 9 and 10.

On the other hand, in step n14, if there is no towel after the motor M2 stops, the process proceeds to step n20 at the final stage of tapping the unused towel 70, and the limit switch S
4 is turned on, the motor M3 rotates, but in this case, the limit switch S5 is not turned on as in the case where there is a towel, so the motor M3 continues to rotate.

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 and the towel is completely wound up to the end. Motor M3 stops (step n 2
1. n22).

On the other hand, in the case of continuous use, in other words, the previous user has just finished wiping their hands, and storage of the used towel has not yet started. In other words, a situation occurs in which the next user presses the switch plate again while the towel loop is formed below and the towel is stopped.

This state is step T1, and when the switch plate 63 is pressed, the motors M1 and M3 start rotating simultaneously in step T2. Then, in step T3, the supply roller 50S and take-up roller 41 are rotated, and in step T4, a new towel is fed out and a used towel is wound up at equal distances, and the process moves to the control routine from step n9 onwards.

Continuous use is not possible after moving to step n11.

On the other hand, when the lid (cover) 4 is asked, 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 heard 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 starts rotating in step ()4, and the taxi 0-538 starts descending in step U5.

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

In this state, either replace the towel with a new one in step U8, or complete the internal inspection, and then proceed to step U8.
When the cover 4 is closed at step 9, the limit switch S6 is turned on at step U10.

In this state, all functions are restored and the process moves to step n1 and subsequent steps.

On the other hand, if the used towel is pulled at the point when it is being stored by the taxi roller 38 or the take-up roller 41, a large tensile force is applied to the towel, so the taxi roller 38 will first move downward. The tensile force tends to push it down, and this torque causes the lower ends of the rotating frames 9 and 10 to move toward the front with the pin 26 as the center of rotation.

At the same time, due to the tension of the towel, the rotating plates 39 and 39, which are in an interlocking relationship via the pins 9d and 10d, are moved to the winding roller 41.
The adjustment roller 42 is moved backward using the center of rotation as the center of rotation. This retreat of the adjustment roller 42 causes the rotation frame 9,
10, and by the synergistic effect of the adjusting roller 42 and the torque generated by the downward pulling force of the taxi roller 38, the rotating frames 9 and 10 are reliably advanced toward the front. As a result, the limit 1 switch S5 is turned on, the rotation of the motors M2 and M3 is stopped, and the towel winding is stopped.

This operation is safe as shown in Figure 12! This works only when there is a towel.

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

At this time, as described above, the cover 4 is queried and all control operations are stopped, but the operation of the towel tray 3 itself is as follows.

That is, Fig. 15 (A), (B) and Fig. 16 (A), (
First, pull the A-ru receiver 3 towards you as shown in B).

At this time, the pin 69 is connected to the elongated hole 6 formed in the side plates 6, 6.
8, f*18 advances through the elongated hole 12b of the frame 12 and the elongated hole 17 of the side plates 6, 6.

In this way, with the towel tray 3 pulled out to the front as much as possible, the entire towel tray 3 is rotated counterclockwise in the figure, centering on @18, as shown in FIGS. 16(A) and (B). and the pin 69 moves in the arcuate portion 68b of the elongated hole 68,
The towel tray 3 is rotated toward the front and opened.

As the towel tray 3 rotates, the frame 12 is pulled toward the front via the shaft 18, 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 that the rotating plate 39, which is interlocked with the pins 9d and 10d through the elongated hole 39a, is shown in FIG. 15(A).

It is rotated counterclockwise as shown in (B) and FIG. 16 (A>, (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 sealing the towel on the winding shaft 45 and the operation of wrapping it around the taxi roller 38 are not possible. It becomes extremely easy.

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's possible to yell.

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. There is little friction during operation, allowing for smooth storage of towels. Also, the left and right end portions 38a of the small diameter portion
, 38a come into contact with the friction member 23, the circumferential speed of the large-diameter central portion 38b becomes extremely high, making it possible to forcibly take out and insert the towel wrapped around the central portion 38b at high speed. can. Therefore, even if the gap between the taxi roller 38 and the back plate (not shown) of this dispensing machine is small, a towel inserted through the gap will fold into the gap due to the contact resistance with the back plate and will get caught. 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 descends,
The taxi roller 38 is rotating at high speed in a direction that feeds out the towel downwards, and the towel between the adjusting roller and the taxi roller is in tension due to this rotational tension, and the taxi
The towel comes into close contact with the circumferential surface of the ○-ra 38, increasing the frictional force for feeding out the towel, thereby ensuring that the towel is fed out downward. Therefore, the phenomenon of towel sagging inside does not occur. Furthermore, when the taxi roller 38 is raised, the towel is sent out from the taxi roller 38 at high speed to the adjustment roller, reducing the tension of the towel traveling to the take-up roller.
By reducing the winding torque of the winding roller, winding can be performed reliably with low load.

[Effect] 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 The circumference of the elongated hole formed in the left and right side plates of the main body is bent inward toward the inside of the side plate to form a folding line, and the axis of the rolled towel is inserted into the elongated hole surrounded by the bent edge. Since both ends of the winding shaft are rotatably fitted together, the ends of the winding shaft do not protrude outside the side plate, and can be used for various separate parts that are attached to the outside of the side plate, such as electronic parts, etc. The rotating member etc. can be provided close to the outside of the side plate, and the entire device can be made smaller. 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 used in both electric and manual dispensing machines. It has extremely high practical effects, such as being able to be used in

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.

Furthermore, since the take-up roller and supply roller are equipped with a clutch mechanism, even if the towel gets jammed or caught, or if the towel is pulled due to an incorrect operation, the spindle and the towel will be wrapped. It can rotate relative to the cylindrical body, which prevents damage to the towel or the power transmission gear, and eliminates the need to cut the towel or remove the roller in case of clogging. It is possible to easily clear the blockage etc.

[Brief explanation of the drawing]

The figures are for explaining one embodiment of the present invention, and Fig. 1 is an overall perspective view, Fig. 2 is a perspective view with the cover removed, and Fig. 3 is a perspective view explaining the installation state of the rotating frame. Figure 4 is an exploded perspective view, Figure 5 is an exploded perspective view of the towel holder, Figure 6 is a perspective view showing how the rotating frame and rotating plate are installed, and Figure 7 is the installation of the friction member. is a perspective view explaining the structure, FIG. 8 is a sectional view taken along line D-C in FIG. 6, explaining the mounting structure of the taxi roller, FIG. 9 is a sectional view taken along line A-A in FIG. is the second
11 is a sectional view taken along line C-C in FIG. Figure 17 (A), (B
) are a side view and a vertical side view each explaining the operation, No. 18
Figures 20 to 20 are side views explaining the operating states of each switch, Figure 21 is a front view of the mounting plate, and Figure 22 is E in Figure 21.
23 to 29 illustrate the supply roller, FIG. 23 is an exploded perspective view, FIG. 24 is an exploded perspective view of the low rigidity joint, and FIG. 25 is an exploded perspective view of the supply roller. 26 is a perspective view of the rotary joint,
Fig. 27 is a perspective view of the spindle with the movable clutch plate attached, Figs. 28 and 29 are perspective views of the main parts of the spindle, and Figs. 30 to 36 illustrate the winding roller. Fig. 30 is an exploded perspective view, Fig. 31 is an exploded perspective view of the roller joint, Fig. 32 is an overall perspective view of the take-up roller, Fig. 33 is a perspective view of the roller joint, and Fig. 34 is an exploded perspective view of the roller joint. A perspective view of the spindle with the movable clutch plate attached, FIGS. 35 and 36 are perspective views of the main parts of the spindle, and FIG. 37 is a perspective view of the take-up roller attached to the rotary plate. be. DESCRIPTION OF SYMBOLS 1... Towel dispensing machine, 2... Device body, 3... Towel holder, 4... Cover, 5... Mounting plate, 6...
Side plate, 8.12... Frame body, 9, 10... Rotating frame, 9
(1,10d...pin, 14.31...chain sprocket, 17.88...long hole, 18...shaft, 2
2... Support frame, 23... Friction member, 33... Ladder chain, 38... Taxi roller, 39... Rotating plate, 39b, 39c... Support shaft, 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, 80.81...Clutch plate, 85...
・Spring, 86.93...Roller joint, 9
4... Inner cylinder, 95... Cylindrical body, 96... Bearing member,
M1-M3...Motor, S1-S6...Limit switch. Mu IWJ Figure 2j Figure 3 Figure 14 (8) Figure 13 (A) Ka 20
Group $79 figure

Claims (3)

[Claims] (1) In a towel dispensing machine equipped with a winding roller for used towels and a supply roller for unused towels, a set of clutch plates is provided in the middle of the spindle for power transmission of each roller, and one The clutch plate is provided on the support shaft for power transmission so as to be able to freely slide over a predetermined distance in the thrust direction, and is biased by a spring in the direction of the other clutch plate. A towel dispensing machine, characterized in that it is rotatably attached to a shaft and is integrated with a cylindrical body that is arranged to cover a support shaft for power transmission and around which a towel is wrapped. (2) A main body formed as a U-shaped frame with an open front side, a towel tray rotatably attached to the lower front side of the main body, and a towel tray attached to the outside of the left and right side plates of the main body in the vertical direction. The upper end is rotatably supported on the shaft,
A winder rotatably supported between an elongated rotating frame interlocking with the towel tray and a rotating plate whose upper end is rotatably supported inside the left and right side plates of the main body, and equipped with a clutch mechanism. a roller, an adjustment roller that is rotatably supported between the lower ends of the rotary plate, a taxi roller that is disposed on the back side of the main body so as to be movable up and down and that raises and lowers used towels, and a taxi roller that is rotatably supported within the towel holder. 2. The towel dispensing machine according to claim 1, further comprising a clutch mechanism, and a supply roller that feeds out a rolled towel. (3) The used towel take-up shaft is formed on the left and right side plates of the main body, and is rotatably supported in a groove formed diagonally from above in the front direction toward the take-up roller. 3. The towel dispensing machine according to claim 1 or 2, wherein the towel dispensing machine is installed so as to be in constant contact with the towel dispensing machine.