JPH0434780Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention provides a rolling wet towel structure device in which a sheet breakage detection means is arranged in the sheet material feeding path, and the presence or absence of the sheet material is detected by this detection means. This invention relates to an arrangement structure for a sheet breakage detection means that can effectively prevent accidental damage to the detection means when replenishing sheet materials or maintain equipment, and can accurately detect the presence or absence of sheet materials. .

BACKGROUND OF THE INVENTION Coffee shops, restaurants, and other eating and drinking establishments provide "wrapped towels" as a customer service. Because this type of facility uses a large amount of "wrapped wet towels" per day, most of the towels are currently supplied by wet towel manufacturers. However, while ``rolled wet towels'' made of towel cloth can be used repeatedly, they not only have the problem of being extremely unsanitary if the recycling process is incomplete, but also have the drawback of increasing costs.

Therefore, the applicant of this case has been working diligently to develop a compact rolling towel manufacturing device that can make inexpensive and disposable "rolling towels" made of paper or non-woven fabric at home, and has filed multiple utility model registration applications. Summer. The rolled wet towel manufacturing apparatus according to these applications can fully automatically and efficiently manufacture a "wrapped wet towel" in which a sheet material made of paper or nonwoven fabric is wound into a roll. The manufacturing apparatus is configured such that a sheet breakage detection means is arranged in a feeding path of the sheet material pulled out from the sheet roll, and the presence or absence of the sheet material is detected by the detection means to control the operation of the manufacturing apparatus. ing. Since the present invention relates to the arrangement structure of this sheet breakage detection means, in order to contribute to a basic understanding, we will first outline the arrangement structure of the sheet breakage detection means adopted in the rolled wet towel manufacturing apparatus according to the previous application. For every,
This will be explained with reference to FIGS. 6 and 7.

FIG. 6 is an explanatory diagram showing a main part of the rolled wet towel manufacturing device in a longitudinal section.The device main body 10 formed in a rectangular shape has a storage section 12 that opens upward, and this storage section 12 includes, for example, A sheet roll 14, in which a sheet material 14a made of nonwoven fabric is wound around a paper tube serving as a core, is housed so as to be freely rotatable. Further, a feed roller 16 is rotatably disposed on the left side of the storage section 12, and the sheet material 14a is sequentially drawn out and supplied from the sheet roll 14 via the feed roller 16. A plurality of O-rings 17 protruding outward in the radial direction are wound around the feed roller 16 at predetermined intervals in the axial direction.
The sheet material 14a is smoothly fed without slipping.

Between the storage section 12 and the feed roller 16,
A guide plate 18 is formed that extends horizontally in the feeding direction of the sheet material 14a.
It functions to smoothly guide the feed roller 16 to the feed roller 16. Further, a sheet breakage detection means 20 is arranged on the back surface of the guide plate 18, and a detection piece 20 of this detection means 20
As shown in FIG. 7, a projects upward (to the feeding path of the sheet material 14a) through an opening 18a formed in the guide plate 18. Then, the detection means 2
0, the presence of the sheet material 14a passing over the upper surface of the guide plate 18 is detected and the operation of the manufacturing apparatus is controlled.

That is, when the sheet material 14a pulled out from the sheet roll 14 is pulled out and supplied from the upper surface of the guide plate 18, the detection piece 20a of the detection means 20
is pressed downward by the sheet material 14a, thereby detecting the presence of the sheet material 14a and maintaining the manufacturing apparatus in an operable state. And sheet material 1
4a is exhausted, the pressing force on the detection piece 20a of the detection means 20 is released, so that the detection piece 2
0a protrudes above the guide plate 18 to stop the operation of the manufacturing equipment and to notify the user that the sheet is out by means of a lamp or an alarm.

Problems to be solved by the invention In the manufacturing apparatus according to the above-mentioned configuration, the detection means 2
0 detection piece 20a is projected into the feeding path of the sheet material 14a, and this detection piece 20a is inserted into the sheet material 14.
I am trying to activate it directly with a. For this reason,
When replacing the sheet roll 14 or maintaining the manufacturing apparatus itself, there is a drawback that the sheet roll 14 or an operator may accidentally touch the detection piece 20a, causing the detection piece 20a to bend or be damaged. Further, since the detection means 20 is small, the contact area between the detection piece 20a and the sheet material 14a is small, and the sheet material 14
If wrinkles or the like occur in the area a, it is expected that the detection piece 20a will not be able to perform the detection operation accurately. In this case, there is an inconvenience that the operation of the manufacturing apparatus is stopped even though the sheet material 14a remains.

Furthermore, since the detection means 20 is disposed on the back side of the guide plate 18, when replacing or maintaining the detection means 20, the removal and attachment of the detection means 20 is complicated and time-consuming. It's becoming work.

Purpose of the invention This invention was proposed in view of the above-mentioned problem inherent in the sheet breakage detection means, and was proposed to suitably solve this problem. It is an object of the present invention to provide a means for effectively preventing such occurrence and for always accurately detecting the presence or absence of a sheet material.

Means for Solving the Problems In order to overcome the above-mentioned problems and suitably achieve the intended purpose, the present invention provides a system in which a belt-like sheet material is wound in a roll in a storage section that opens upwards into the main body of the device. In the rolled wet towel manufacturing apparatus, which includes a rotatable sheet roll and is configured to feed the sheet material pulled out from the sheet roll along a guide plate extending horizontally in the sheet material feeding direction, in the storage section. a notch formed in a continuous section between a downstream wall in the sheet material feeding direction and the guide plate connected to an upper end of the wall; and a rotatably supported portion inside the notch. a detection means support body which is always biased so that a part thereof projects above the guide plate; and an overhang which is disposed on the back surface of the detection means support body and has a detection piece formed inside the cutout portion. The detection means is configured to detect the detection means by pressing and rotating the detection means support with a sheet material pulled out from the sheet roll and fed along the guide plate. It is characterized in that it is constructed so that it can be activated by pressing the piece against the overhang.

Embodiment Next, the arrangement structure of the sheet breakage detection means of the rolled wet towel manufacturing apparatus according to the present invention will be described below with reference to a preferred embodiment and the accompanying drawings. FIG. 1 is a side view showing a main part of a rolled wet towel manufacturing apparatus in which a sheet breakage detection means according to a preferred embodiment of the present invention is adopted, and FIG.
FIG. 3 is a schematic perspective view showing an arrangement section of the sheet breakage detection means shown in the figure. The basic configuration of the rolled wet towel manufacturing apparatus is the same as that explained in connection with FIGS. 6 and 7, so the same members are given the same reference numerals and detailed explanations will be omitted. Omitted.

As shown in the drawing, the storage section side end of the guide plate 18 disposed between the storage section 12 formed in the apparatus main body 10 and the feed roller 16 is integrated with a vertical wall 22 that defines the storage section 12. are connected in series. A notch 24 having the same shape (in cross section) is formed in this continuous portion, extending between the guide plate 18 and the partition wall 22, and a detection means support 26 is rotatably disposed in this notch 24. Ru.

As shown in FIG. 1, the detection means support 26 is formed into a shape on the side surface and is configured to be fitted into the notch 24 in a straight manner. Holes 28 are formed in both end surfaces of the vertical portion 26a of the support body 26 in the width direction (direction intersecting the feeding direction of the sheet material 14a), and the holes 28, 28
Pins 30, 30 bored into the facing surfaces of the vertical portion 24a of the notch 24 are inserted into the notch 24 (fourth pin).
(see figure). That is, the detection means support 26 is
It is configured to be rotatable around pins 30, 30, and as will be described later, by rotating the support body 26 by a required angle clockwise, as shown in FIG.
The back side of the cover can be exposed.

As shown in FIG. 4, the detection means support 26 has horizontal portions 26 on both sides of the horizontal portion 26b.
A pair of regulating pieces 4 spaced apart by a predetermined distance downward from b.
0.40 is formed. Moreover, the notch 2
Protrusions 42, 42 are provided on opposing surfaces of the horizontal portion 24b at 4, respectively, and these protrusions 42 are arranged to face between the horizontal portion 26b and the regulating piece 40. Then, when the detection means support 26 rotates in the forward and reverse directions around the pin 30, either the horizontal portion 26b or the regulation piece 40 comes into contact with the protrusion 42, and the support 26 It is configured such that the rotation range is restricted.

Note that when the support body 26 is rotated clockwise with a required force, the regulating pieces 40, 40 are moved against the protrusion 4.
The protrusion dimension of the protrusion 42 is set so that the notch 24 can be opened by climbing over the protrusions 2 and 42. Therefore, replacement and maintenance of the detection means 20, which will be described later, provided on the back surface of the support body 26 can be performed extremely easily. Moreover, when the replacement is completed, the support body 26 can be set in a fixed position simply by rotating the support body 26 in a counterclockwise direction.

At the rear of the horizontal portion 26b, the support body 26 is provided.
A protrusion 44 is formed that protrudes into the feeding path of the sheet material 14a in a state in which the notch 24 is set in a fixed position. That is, when the sheet material 14a pulled out from the sheet roll 14 is fed on the upper surface of the guide plate 18, the protrusion 44 is pressed downward by the sheet material 14a, thereby causing the detection means support 26 to reverse. Rotate clockwise (see Figure 5a).

Vertical portion 26a in the detection means support 26
Detecting means 20 is disposed on the back side of the sheet material 14a to detect the presence or absence of the sheet material 14a and to control the operation of the manufacturing apparatus. That is, a pin 32 is provided protruding from the back side of the vertical portion 26a, and the detection means 20
By inserting a pin 32 into a through hole formed in the detection means 20, the detection means 20 is fixed via a screw 34 while being positioned and prevented from rotating. Note that the detection piece 20a of the detection means 20 is the fifth
An overhanging portion 3 that protrudes downward as shown in the figure and will be described later.
8. This detection piece 20a has a roller 36 disposed at the tip of a leaf spring, and has a required elastic force, so that when the detection piece 20a is pressed against the main body of the detection means, the sheet material 14a.

As shown in FIG.
An overhanging portion 38 is formed that projects horizontally in the direction of the feed roller, and the detection piece 20a of the detection means 20 has a
It is in contact with this projecting portion 38. In this state, the detection means support 26 is attached to the detection piece 20a.
Due to the elastic force, the regulating piece 40 comes into contact with a protrusion 42 formed in the notch 24 and its position is regulated (see FIG. 5b). Then, the protrusion 44 formed on the horizontal portion 26b of the detection means support 26
4a, the detection means support 20 rotates counterclockwise around the pin 30, as shown in FIG. The presence of the sheet material 14a is detected.

A top panel 46 for closing the upper opening of the apparatus main body 10 is disposed in an openable and closable manner. As shown in FIG. 1, the center portion of the top panel 46 is formed in an arc shape that bulges upward, and is configured to cover the upper part of the sheet roll 14 that is stored in the storage section 12 and projects upward. . In addition, when the upper opening is closed at the front end of the arcuate portion 46a (downstream side in the feeding direction of the sheet material 14a),
A horizontal portion 46b is formed that extends parallel to the guide plate 18 at a predetermined distance. This horizontal part 4
6b indicates that when the sheet material 14a pulled out from the sheet roll 14 becomes slack, the sheet material 14a
It functions to effectively prevent the guide plate 18 from floating up from the upper surface of the guide plate 18.

A connecting portion between the arcuate portion 46a and the horizontal portion 46b (located on the upstream side of the sheet breakage detection means 20 in the sheet material feeding direction) is provided with a predetermined dimension below the upper surface level of the protrusion 44 on the detection means support 26. A rib 46c protruding downward is formed in a direction intersecting the sheet material feeding direction. That is, the ribs 46c push down the sheet material 14a pulled out from the sheet roll 14 below the protrusion 44 of the detection means support 26, as shown in FIG. It functions to ensure that the detection means support 26 operates reliably.

Effects of the Embodiment Next, the effects of the arrangement structure of the sheet breakage detection means in the rolled wet towel manufacturing apparatus according to the embodiment will be explained. First, the sheet material 14a is pulled out from the sheet roll 14 that is freely rotatably stored in the storage section 12, and is set on the feed roller 16.
Then, when the top panel 46 is closed, the sheet material 14a pulled out from the sheet roll 14 is
is pressed against the protrusion 44 of the detection means support 26 disposed on the guide plate 18 by the rib 46c of the top panel 46, as shown in FIG. 5a. Therefore, the support 26 rotates counterclockwise, and the detection piece 20a of the detection means 20 disposed on the support 26 is pressed by the overhang 38, so that the detection means 20 detects the presence of the sheet material 14a. To detect. A detection signal is sent from the detection means 20 to a control circuit (not shown), whereby the rolled wet towel manufacturing apparatus becomes ready for operation.

At this time, the sheet material 14a pulled out from the sheet roll 14 is moved by the ribs 46c of the top panel 46 on the upstream side of the detection means support 26.
It is pressed down below the level of the upper surface of the protrusion 44 of the support body 26 . In addition, since the contact area between the sheet material 14a and the support body 26 is large, the sheet material 1
4a, the support body 26 operates reliably, and the detection means 20 can accurately detect the sheet material 14a. Note that the counterclockwise rotation of the detection means support 26 is restricted by the horizontal portion 26b of the support 26 coming into contact with the protrusion 42 formed in the notch 24. It is possible to prevent the detection piece 20a of the detection means 20 from being damaged due to rotation.

Next, when the sheet material 14a is consumed and disappears, the pressing force on the detection means support body 26 is released, so that the support body 26 is affected by the elastic force of the detection piece 20a in the detection means 20, as shown in FIG. 5b. As a result, the detection means 20 detects the sheet breakage and controls the manufacturing apparatus to stop operating. Note that the detection means support 26 has a protrusion 4 that the regulating pieces 40, 40 protrude from the notch 24.
2 and 42, and is prevented from rotating more than necessary.

Here, when performing maintenance or replacement of the detection means 20, if the detection means support 26 is forcibly rotated clockwise, the support 26 can be rotated approximately 90 degrees as shown in FIG. However, the detection means 20 can be exposed. Therefore, maintenance and replacement of the detection means 20 can be performed extremely easily and in a short time.

Effects of the Invention As explained above, according to the arrangement structure of the sheet breakage detection means in the rolled wet towel manufacturing apparatus according to the present invention, the support body on which the detection means is arranged without being exposed to the outside can be actuated by the sheet material. Therefore, it is possible to prevent the detection means from being accidentally damaged when replacing the sheet roll or performing maintenance on the apparatus.
Further, since the contact area between the detection means support and the sheet material is large, the detection operation of the detection means can be performed reliably. Furthermore, by forcibly rotating the detection means support, the detection means disposed on the back surface of the support can be exposed, which has the advantage of significantly shortening the time required for maintenance and replacement of the detection means. There is also.

[Brief explanation of the drawing]

FIG. 1 is a longitudinally sectional side view showing the main parts of a rolled wet towel manufacturing apparatus that employs the arrangement structure of the sheet breakage detection means according to the embodiment, and FIG. 2 shows the arrangement of the detection means support shown in FIG. 1. FIG. 3 is a schematic perspective view showing a state in which the detection means support is rotated from the state shown in FIG. 2 to open the notch;
The figure is a cross-sectional view observed from the - line direction in Figure 2,
FIGS. 5a and 5b are explanatory diagrams showing the operation of the detection means support body, and FIG. 6 is an explanatory diagram showing a main part of a rolled wet towel manufacturing apparatus already proposed by the applicant in a longitudinal section. FIG. 7 is a schematic perspective view showing the arrangement of the detection means shown in FIG. 6. 10... device main body, 12... storage section, 14...
Sheet roll, 14a... sheet material, 18... guide plate, 20... sheet breakage detection means, 20a...
Detection piece, 22... Wall, 24... Notch, 26...
...Detection means support body, 38... Overhanging portion.

Claims (1)

[Claims for Utility Model Registration] In the storage section 12 that opens upward of the device main body 10,
A sheet roll 14 in which a band-shaped sheet material 14a is wound into a roll is rotatably provided, and the sheet material 14a pulled out from the sheet roll 14 is guided along a guide plate 18 extending horizontally in the sheet material feeding direction. In the rolled wet towel manufacturing apparatus configured to feed rolled wet towels, a wall 22 on the downstream side in the sheet material feeding direction in the storage section 12 and the guide plate 18 connected to the upper end of the wall 22 are connected to each other. Notch 2 formed in the
4, rotatably supported inside the notch 24;
A detection means support 26 which is always biased so that a part thereof projects above the guide plate 18; The detection means 20 is brought into contact with the formed overhang 38, and the detection means 20 is pulled out from the sheet roll 14 and the guide plate 1
By pressing and rotating the detecting means support 26 with the sheet material 14a fed along the line 8, the detecting piece 20a of the detecting means 20 can be pressed against the projecting portion 38 and activated. An arrangement structure for sheet breakage detection means in a rolled wet towel manufacturing device characterized by: