JPS59228822A - Towel supply stopping mechanism of towel distributor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to a towel dispensing device installed in a washroom or the like for wiping hands and faces, and more particularly, the present invention relates to a towel dispensing device that is installed in a washroom or the like to wipe hands and faces, and more particularly, when a user uses a towel, a predetermined length of unused towel is dispensed. Later, it relates to a towel supply stop mechanism of a towel dispensing device that stops the supply.

Heretofore, two types of towel dispensing devices of this type have been known.

The first is a manual towel dispensing device in which the looped towel is exposed downward at all times.

That is, it has a structure in which a towel is wound from an unused towel roll onto a used towel roll via a supply roller, and the take-up roller that comes into sliding contact with the outer periphery of the used towel roll and the supply roller are connected by a chain. be. This towel dispensing device is provided with a towel supply stop mechanism that stops the supply of unused towels after a predetermined length of supply.

This supply stop mechanism is generally implemented by forming a spiral groove on the end face of a disk, or by forming a spiral groove on the outer peripheral surface of a metal cylinder, both of which have a spiral groove. It is nothing but a structure in which a pin guided by a pin moves from one end to the other and maintains its moving state. These structures are structures that can only be used in the above-mentioned fully manual towel dispensing device and are not versatile.

The second structure is a completely electric version of the first structure. That is, a supply motor is connected to the supply row, a take-up motor is provided to the take-up roller, and both rollers are driven independently. The towel dispensing device having this structure does not require a towel supply stop mechanism at all since it supplies unused towels for a predetermined length and then stops the supply motor to stop the supply of unused towels.

In the first towel dispensing device, since the towel loop is always exposed downward, germs, dirt, dust, etc. can adhere to the towel loop, which poses an extremely hygienic problem. Furthermore, since the second towel dispensing device is fully automatic, it has the disadvantage that mechanical failure occurs when a user who is accustomed to the towel dispensing operation forcibly pulls out the towel.

As a result of intensive research to improve the above-mentioned drawbacks, the present inventors have developed a semi-electric type towel that pulls out the towel manually, manually winds up the looped towel after a predetermined period of time, and does not expose the towel when not in use. This led to the development of a device to provide this.

Therefore, an object of the present invention is to provide a towel supply stop mechanism in a towel dispensing device, and more specifically, to provide a towel supply stop mechanism that is most suitable for a semi-type dynamic towel dispensing device. .

The towel supply stop mechanism of the towel dispensing device according to the present invention includes:
To summarize, there is a rotary plate that rotates in conjunction with the rotation of the supply roller, a locking piece attached to this rotary plate, and an end of the pinch roller that comes into contact with the supply roller when unused towels are supplied. A swinging rod that is connected and immovable by the towel tension, a return mechanism that returns the swinging rod to the initial position when the towel tension is released, and a mechanism that returns the swinging rod to the initial position when the rotating plate rotates about one rotation. It is characterized in that it includes a projection piece provided on the swinging rod that prevents movement of the locking piece.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a towel supply stop mechanism of a towel dispensing device according to the present invention will be described in detail below with reference to a drawing showing a semi-type dynamic towel dispensing device.

FIG. 1 shows a perspective view of a semi-mobile towel dispensing device. As shown in the figure, an unused towel roll 2 is placed on a towel tray 4 so as to be removable, and an unused towel 6 pulled out from the roll is placed on a supply roller 8 and a pinch roller 1.
0 and the used towel roll 1 via the take-up roller 12
It has been changed to 3. Left and right side walls 14a, 14b of this device
Arc-shaped elongated holes 16a and 16b are bored at the top end of the supply roller 8, and both ends of the supply roller 8 are rotatably supported through these elongated holes 16a and 16b. A supply gear 18 is fixed to one end of the supply roller 8 on the outside of the side wall 14, and a rotating plate 20 is rotatably disposed on the side wall 14 in mesh with the supply gear 18. The rotary plate 20 is formed in the shape of a gear, and an L-shaped locking piece 22 having a claw is rotatably mounted on the rotary plate 20 by a pin 22a.

A locking piece 22b is protruded from one end of the locking piece 22, and one end of a spring 24 is fixed to the locking piece 22b.

The other end of this spring 24 is attached to a fixing pin 20a on the rotating plate 20.
The locking piece 22 is connected to the locking piece 22, and applies a clockwise rotational elastic force to the locking piece 22.

Further, a restriction pin 20b is provided on the rotating plate 20 in order to prevent the locking piece 22 from rotating counterclockwise at an appropriate position.

A supply sprocket 26 is provided at the other end of the supply roller 8 on the outside of the side wall 14b, and is connected to a feeding sprocket 30 via a chain 28. An auxiliary gear 32 is fixed to this sprocket 30,
It is provided so as to always mesh with a feeding gear 34, which will be described later, via a coupling piece 36. One end of the pinch roller 10 is connected to a second roller provided on the outside of the side wall 14b through the elongated hole 16b.
It is connected to the tip of the swinging rod 38, and this second swinging rod 3
8 is pivotably attached to the side wall 14b by means of a holding pin 38a. Further, the other end of the second swinging rod 38 is fixed to one end of a second return spring 40, and the other end of the spring 40 is fixed to the side wall 14b.
Protrusion 15b k: connected to second swinging rod 3
The tip 38b of the long hole 18b is urged so as to always come into contact with the upper edge of the elongated hole 18b. The upper end of a second connecting rod 42 is connected to the center of the second swinging rod 38 by a connecting pin 42a, and the feeding gear 34 is rotatably provided at the lower end of the second connecting rod 42. There is.

Therefore, when the tip 38b of the second swinging rod 38 is pulled downward by the towel tension, the swinging rod 38 moves toward the first pivot pin 38a as a fulcrum while resisting the elastic force of the second return spring 40. The connecting rod 42 rotates clockwise as shown by the dotted line in the figure, and as a result, the connecting rod 42 moves downward, and the feeding gear 34 attached to the tip of the second connecting rod 42 shifts to the reversing gear 12b for feeding, which will be described later.
It comes to fit. When the towel tension is released, the swinging rod 38 is rotated counterclockwise by the restoring force of the second return spring 40, and the feeding gear 34 is disengaged from the feeding reversing gear 12b, returning to the initial state.

The other end of the pinch roller 10 is connected to the side wall 14 through the elongated hole 16a.
It is fixed to a tip 44b of a first swinging rod 44 located outside of a. The first swinging rod 44 is swingably provided outside the side wall 14a using the pivot pin 44a as a fulcrum.

Further, a projecting piece 44c is fixed to the tip side of the first swinging rod 44 at a position almost directly above the rotary plate 20, and this projecting piece 4
40 is formed in a substantially inverted shape, and its edge portion 44d
is configured to come into contact with the locking piece 22 to prevent rotation of the rotary plate 20, as will be described later. The rear end of the first swinging rod 44 is connected to the upper end of the first connecting rod 46, and the rear end of the first swinging rod 44 is connected to the upper end of the first return spring 48. The lower end of the first return spring 48 is connected to a protrusion 15a protruding from the side wall 14a, and is configured to always urge the tip 44b of the first swinging rod 44 to the upper end position of the elongated hole 16a. There is.

The lower end of the first connecting rod 46 is pivotally fixed to a corner of the gear housing 50 by a connecting pin 50a, and the other corner at a diagonal position of the gear housing 50 is fixed to the side wall 1 by a swing pin 50b.
It is rotatably pivoted to a. A gear mechanism to be described later is installed inside the gear housing 50, and a drive gear 50c is provided to protrude between the housing 50 and the side wall 14a by a shaft 50d projecting from the gear housing 50. An electric motor M is fixed to an end of the housing 50, and rotates the drive gear 50c via a gear mechanism inside the housing. The drive gear 50c is configured to normally mesh with a take-up gear 12a fixed to the outside of the side wall 14a at the end of the take-up roller 12. Further, the above-mentioned reversing gear 12b for feeding is fixed to the other end of the take-up roller 12 outside the side wall 14b. Therefore, the take-up gear 12a and the reversing feed gear 12b rotate together with the take-up roller 12 and in the same direction.

Because of the above structure, when a person pulls out an unused towel downward, the first swinging rod 44 is moved from the pivoting bin 44.
The first connecting rod 46 moves upward to lift the housing 50 clockwise about the swing pin 50b, and the drive gear 50c separates from the take-up gear 12a. When the towel tension is released, the first swinging rod 44 rotates counterclockwise due to the return force of the first return spring, returning to the initial state as shown in FIG. 1, and driving gear 50c and take-up gear 12a.
mesh again.

At the lower end of the front side of this device, a support shaft 52 is provided on both side walls 14a,
14b, and an actuating arm 54 is fixed to one end of this support shaft 52 at a position outside the side j114a. The base ends of support arms 52a, 52b are fixed to the center of the support shaft 52, and an actuation roller 56 is rotatably supported at the distal ends of both support arms 52a, 52b.

A first limit switch 58 is disposed at the bottom of the side wall 14a, and its actuator 58a is open when the towel is not in use. The actuating roller 56 is always urged to rotate outward toward the front side due to its own weight, but when the towel loop is not formed in an unused state as shown in the figure, the actuating roller 56 is forced to rotate due to the towel tension.
6 rotates in the opposite direction to the biasing direction, the tip of the operating arm 54 is in contact with the protruding shaft 50d of the drive gear 50c, and the first limit switch 58 is open. When the unused towel is pulled out downward, the actuating roller 56 rotates in the urging direction due to its own weight, and the actuating arm 54 contacts the actuator 58a of the first limit switch 58 to close this switch, and the actuating roller 56 rotates in the biasing direction. The rotation of 56 is stopped.

A second limit switch 6° is disposed at the upper part of the side wall 14a, and its actuator 60 is in the illustrated state.
a is pushed up by the first swinging rod 44, and the switch 60 is closed. When the user pulls the towel downward,
The first swing rod 44 rotates clockwise and the second limit switch 6o is opened. In addition, both side walls 14a, 14
Guide grooves 17a and 17b are formed in the middle part of b, and both ends of the central shaft (not shown) of the used towel roll 13 are fitted into the guide grooves 17a and 17b to be pivotally supported. As a result, the towel roll 13 is placed circumferentially on the take-up roller 12. Therefore, the used towel roll 13 is configured to rotate due to frictional force as the take-up roller 12 rotates, and to move along the guide grooves 17a, 17b as the take-up diameter increases.

FIG. 2 is an internal configuration diagram of the gear housing 50, in which a worm W is provided at the tip of the motor M, and a worm W is provided at the tip of the protruding shaft 50d via a gear @ 50e composed of a plurality of gears. The rotational force is transmitted to the take-up gear 12a meshed with the drive gear 50c, and the loop-shaped towel is rolled into the used towel roll 1 as will be described later.
It is wound up in 3 steps.

FIGS. 3A and 3B are a left side view and a right side view of the apparatus in the state shown in FIG. 1, and the same parts are given the same numbers.

The traveling state of the unused towel 6 from the unused towel roll 2 to the used towel roll 13 is shown by a dashed line, and the rest of the explanation will be omitted.

Next, the operation of the above configuration will be explained with reference to the drawings.

First, the device is in an unused state in Figures 3 (A) and (
It is in state B). 6 unused towels for people to wipe their hands with
Grasp the lower front end 6a of the holder with both hands and pull it down firmly. FIGS. 4(A) and 4(B) are a left side view and a right side view showing a state in which the towel is being pulled down. By pulling down the unused towel 6, the pinch roller 10 moves down to a position where it comes into circumferential contact with the supply roller 8. At this time, the actuator 60a is moved away and the second limit switch 60 is opened. By opening this limit switch 60, a timer (not shown) begins to operate. At the same time, the actuating roller 56 rotates outward from the front due to its own weight, the actuating arm 54 separates from the protruding shaft 50d and presses the actuator 58a, and as the first limit switch 58 is closed, the actuating roller 56 rotates. The movement stops. In addition, drive gear 5
0c is removed from the take-up gear 12a #I, and the feeding gear 34 meshes with the feeding reverse gear 12b.

Further, when the unused towel 6 is pulled down, since the outer peripheral surfaces of the pinch roller 10 and the supply roller 8 are formed with rough surfaces, the unused towel 6 is unused while being moderately braked by the H vibration force. It is supplied from the towel roll 2. At the same time, the rotational force of the supply roller 8 is transmitted to the feeding reversing gear 12b via the chain 28 and feeding gear 34, causing the take-up roller 12 to be reversed and feeding the used towel 13a downward from the used towel roll 13. be. As the towel 6 is pulled down, the rotating plate 20 rotates, and after about one rotation, the tip of the locking piece 22 touches the edge portion 4 of the protruding piece 44c.
4d, the locking piece 22 rotates counterclockwise against the elastic force of the spring 24, and when the back surface of the locking piece 22 contacts the restriction bin 20b, the rotating plate 20 prevents further rotation. be done.

Therefore, the unused towel 6 can no longer be pulled down, and the towel loop 62 is completed and reaches the state shown in FIG. 5. When the user releases the unused towel 6, the return springs 40, 48 move the pinch roller 10 upward and return it to the initial state shown in FIG.

As described above, the front surface of the towel loop 62 is formed by the unused towel 6, and the rear surface is formed by the used towel 13a. The user can wipe his/her face, hands, etc. with the loop-shaped towel for a time set by the timer.

When the predetermined time set by the timer ends, the electric motor M starts rotating, and the drive gear '50c
And the take-up roller is rotated normally via the take-up gear 12a. Since the outer circumferential surface of the take-up roller 12 is formed into a rough surface, the used towel roll 13 begins to rotate normally due to the frictional force and starts to wind up the loop-shaped towel on its circumferential surface. As the loop-shaped towel is wound up, the operating roller 56 is lifted up by the bottom of the loop and rotated toward the inside of the device, and the operating arm 54 separates from the actuator 58a, opening the first limit switch 58 and stopping the rotation of the motor M. Stop and finish winding the looped towel. As a result, Figure 3 (A>
, returns to the initial state of (B).

FIG. 6 is an enlarged perspective view of a main part of the towel supply stop mechanism according to the present invention, and a more detailed operation of the towel supply stop mechanism will be explained with reference to FIG. 1 of the embodiment. FIG. 7(A) shows the normal state (before use), and since the rear end of the first swinging rod 44 is pulled downward by the return mechanism 48, the tip 44b holds the carrier bottle 44a. As a result of being pulled upward as a fulcrum, the pinch roller 10 and the supply roller 8 are located apart from each other. FIG. 7(B) shows a state in which the pinch roller 10 is moved downward until it contacts the supply roller 8 due to the initial towel pulling operation in order to continuously pull out towels, and the towels still remain from the unused towel roll 2. is currently not in supply. FIG. 7(C) shows a state in which approximately half of the predetermined length to be supplied is supplied by further pulling out the towel, and as the supply roller 8 is rotated counterclockwise as shown by the arrow, The rotating plate 20 meshing with the supply gear 18 has rotated half a turn clockwise, and the locking piece 22 has moved downward. FIG. 7(D) shows a state in which the unused towel 6 is supplied from the unused towel roll 2 to a predetermined length. 20 is rotating.

FIG. 7(E) shows a state in which the supply of unused towels is completely stopped. When the user further pulls out the towel from the state shown in FIG. 7(D), the locking piece 22 is pressed by the edge portion 44c and rotates counterclockwise around the pin 22a while resisting the elastic force of the spring 24. move. When the back surface of the locking piece 22 comes into contact with the limiting bin 20b, further rotation will be prevented from occurring in the limiting bin 20b.
0b, the rotary plate 20 cannot rotate any further, and the supply of unused towels is completely stopped.

When the user releases his/her hand from the towel, the first swinging rod 44 moves to the first position.
The return spring force of the return spring 48 causes the pin 44a to rotate in one direction opposite to llff1, and the edge portion 44d engages the locking piece 2.
Leave from 2. At this moment, the locking piece 22 is forcibly rotated counterclockwise by the return force of the spring 24, as shown in FIG.
) returns to the initial position. Therefore, after the loop-shaped towel hanging downward is stored, it enters a standby state for next use.

Since the present invention is configured as described above, it is possible to prevent towels from being pulled out on the necessary JJ in vain, and it is possible to supply towels to appropriate personnel when using the towels twice, thereby increasing the efficiency of towel handling. can. Further, by appropriately setting the gear ratios of the supply gear 18 and the rotary plate 20, the amount of unused towels supplied can be freely adjusted.

In addition, although an embodiment has been described in which the present invention is applied to a semi-automatic towel dispensing device, the present invention can also be applied to a fully manual towel dispensing device. It can also be used as a protection mechanism for drawers.

It goes without saying that the present invention is not limited to the above description, and includes various modified structures within the scope of the technical idea of the present invention.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a half-type dynamic towel dispensing device equipped with a towel supply stop mechanism of the towel dispensing device according to the present invention, Fig. 2 is an internal configuration diagram of a gear housing, and Fig. 3 (A ) and (B
) are the left side view and right side view of this device in Figure 1,
Figures 4 (A) and (B) are a left side view and a right side view showing the state in the process of forming a towel loop, Figure 5 is a left side view showing the completed state of the towel loop, and Figure 6 is a towel External perspective views of the supply stop mechanism, and FIGS. 7(A) to 7(E) are drawings showing the operation of FIG. 6. 6... Unused towel, 8... Supply roller, 1o...
- Pinch roller, 20... rotating plate, 22... locking piece, 44... rocking rod, 44c... projecting piece, 48... return mechanism. Figure 1 Figure 2 Figure 3 TIJ (A) Figure 3 ('B) Figure 5 Figure 7 (C) Figure 7 (B) Figure 7 (C) Figure 7 (D)

Claims (1)

[Claims] a rotating plate 20 that rotates in conjunction with the rotation of the supply roller 8;
a locking piece 22 attached to the rotary plate; a swinging rod 44 connected to the end of the pinch roller 10 that comes into contact with the supply roller when unused towels 6 are supplied, and immovable by towel tension; a return mechanism 48 that returns the swinging rod 44 to its initial position when the towel tension is released; and a return mechanism 48 that prevents the movement of the locking piece on the rotating plate when the rotating plate 20 rotates approximately - Projection piece 4 provided on swinging rod 44
4c. A towel supply stop mechanism for a towel dispensing device.