JP5740067B1 - Cleaning sheet and cleaning tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a more rational construction technique relating to a configuration in which a space for taking in dust is provided in a cleaning area. A fiber bundle constituent fiber B410 and a strip piece B310 constituting a fiber bundle B400 are configured to be able to stand up in a direction away from a holding region B110 with a joint B710 as a starting point, and a first strip piece B321 and a second strip piece B321. In a state where the strip piece B322 stands up, the first engaging portion B311a is configured to be engageable with the fiber bundle constituting fiber B410, and the second engaging portion B312a of the first strip piece B321 and the second of the second strip piece B322 are configured. The engaging part B312a is configured to be able to engage with each other. [Selection] Figure 8

Description

  The present invention relates to a cleaning sheet and a cleaning tool for cleaning an object to be cleaned.

Japanese Patent Application Laid-Open No. 2014-150963 describes a cleaning sheet to be attached to a holder. The cleaning sheet was cleaned using a cleaning target side sheet having strips and a fiber assembly. In the cleaning operation, the strip piece and the constituent fiber of the fiber assembly are erected to provide a space for adhering dust between the strip piece and the constituent fiber of the fiber assembly. That is, the said cleaning sheet exhibited the outstanding cleaning function by providing the space which takes in dust in the execution area | region of the cleaning operation in a cleaning sheet.
On the other hand, further improvements have been desired in forming the dust intake space.

Japanese Patent Application Laid-Open No. 2014-150963

  The present invention has been made in view of such a point, and an object thereof is to provide a more rational construction technique related to a configuration in which a space for taking in dust is provided in an execution area of a cleaning operation.

In order to solve the above problems, a cleaning sheet according to the present invention is a cleaning sheet that is mounted on a holder, and includes a holding area that is mounted on the holder and a cleaning area that is in contact with a cleaning target.
The holding area includes a sheet element and a holding portion for a holder configured by overlapping the sheet elements. That is, the storage portion is configured to be detachable from the holder.
The cleaning region includes a fiber bundle, a cleaning side sheet-like member stacked on the fiber bundle, and a joint portion that joins the fiber bundle and the cleaning side sheet-like member. The fiber bundle is configured by arranging a plurality of fiber bundle constituent fibers having a predetermined orientation. The cleaning-side sheet-like member has a first surface directed toward the fiber bundle side, a second surface opposite to the first surface, a cutting element, and a strip element constituted by the cutting element. The cutting element is composed of a plurality of cutting portions. The strip element is formed between a pair of cut portions in the plurality of cut portions, and has a first strip piece and a second strip piece. The strip element has a plurality of strip pieces, and any one of the plurality of strip pieces can be a first strip piece and a second strip piece.
The fiber bundle constituting fiber is configured to be able to stand up in a direction away from the holding region with the joint as a starting point. The first strip piece and the second strip piece have an engaging portion configured on the first surface and a second engaging portion configured on the second surface, and are separated from the holding region starting from the joint portion. It is configured to stand up in the direction. That is, a space for taking in dust is configured by the spacing between the standing fiber bundle constituting fibers, the first strip pieces, and the second strip pieces. In addition, the standing of the fiber bundle constituting fiber, the first strip piece, and the second strip piece can be performed by moving the left and right hands up and down alternately while holding both ends of the cleaning sheet by the user, This is performed by an operation in which the user shakes his / her hand holding the holding tool in the mounted state.
With the configuration described above, in a state where the first strip piece and the second strip piece stand up, the first engagement portion is configured to be able to engage with the fiber bundle constituent fibers, and the second engagement portion of the first strip piece and the second The second strips are configured to be engageable with the second engaging portion.

  The cleaning sheet according to the present invention stands up in a state where the first engaging portion of the strip piece engages the fiber constituting the fiber bundle, and the first strip piece and the second strip piece are engaged with each other by the second engaging portion. Therefore, it is possible to facilitate the maintenance of the standing state of the strip and the fiber constituting the fiber bundle, particularly in the initial stage of cleaning. Here, “engagement” in the present invention will be described. For example, when the cleaning side sheet-like member is a non-woven fabric, it has non-woven fabric constituting fibers constituting the non-woven fabric. Therefore, the engagement of the first strip piece and the second strip piece means that the nonwoven fabric constituting fiber in the first strip piece and the nonwoven fabric constituting fiber in the second strip piece are intertwined with each other. Further, “engagement” between the strip piece and the fiber bundle constituting fiber means that the nonwoven fabric constituting fiber and the fiber bundle constituting fiber in the strip piece are intertwined with each other.

  Moreover, as one aspect of the solving means in the cleaning sheet according to the present invention, the cleaning-side sheet-like member includes a first direction defined by a direction extending between the joining portion and the tip end portion of the strip element, and a first direction intersecting the first direction. Two directions.

  Moreover, the cleaning side sheet-like member can be comprised with a nonwoven fabric as one aspect | mode of the solution means in the cleaning sheet which concerns on this invention. In this case, the nonwoven fabric can have a plurality of nonwoven fabric-constituting fibers having an orientation in the first direction.

  Moreover, the 1st engaging part can be comprised with the nonwoven fabric structure fiber exposed to the 1st surface as an aspect of the solution means in the cleaning sheet which concerns on this invention. According to the cleaning sheet which concerns on this aspect, it becomes possible to engage a nonwoven fabric constituent fiber and a fiber bundle constituent fiber.

  Moreover, the 2nd engaging part can be comprised with the nonwoven fabric structure fiber exposed to the 2nd surface as one aspect | mode of the solution means in the cleaning sheet which concerns on this invention. According to the cleaning sheet which concerns on this aspect, it becomes possible to engage the nonwoven fabric constituent fiber of a 1st strip piece, and the nonwoven fabric constituent fiber of a 2nd strip piece.

  Moreover, as one aspect | mode of the solution means in the cleaning sheet which concerns on this invention, it is preferable that the nonwoven fabric has the rigidity of a 1st direction larger than the rigidity of a 2nd direction.

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the nonwoven fabric has a rigidity in the first direction of 69.7 mm to 80.0 mm and a rigidity in the second direction of 35.0 mm to 39.9 mm. It is preferable that

  Moreover, as one aspect | mode of the solution means in the cleaning sheet which concerns on this invention, it is preferable that a nonwoven fabric is 83.03% to 88.43% of total light transmittance.

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the nonwoven fabric preferably has an average surface friction coefficient in the first direction on the second surface larger than an average surface friction coefficient in the first direction on the first surface. .

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the nonwoven fabric has an average surface friction coefficient in the first direction on the first surface of 0.126 mu to 0.129 mu and the first surface on the second surface. The average surface friction coefficient in the direction is preferably 0.138 mu to 0.145 mu.

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the nonwoven fabric preferably has an average surface friction coefficient in the second direction on the second surface larger than an average surface friction coefficient in the second direction on the first surface. .

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the nonwoven fabric has an average surface friction coefficient in the second direction on the first surface of 0.126 mu to 0.129 mu and the second surface on the second surface. The average surface friction coefficient in the direction is preferably from 0.145 mu to 0.163 mu.

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the nonwoven fabric has an average deviation of the surface roughness in the first direction on the second surface, and an average deviation of the surface roughness in the first direction on the first surface. Larger is preferred.

  Moreover, as an aspect of the solution means in the cleaning sheet according to the present invention, the nonwoven fabric has an average deviation of the surface roughness in the first direction on the first surface from 3.225 microns to 3.350 microns, and on the second surface. The average deviation of the surface roughness in the first direction is preferably 3.250 microns to 3.535 microns.

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the sheet element can be constituted by a laminated sheet body formed by laminating a first sheet-like member and a second sheet-like member. In this case, the laminated sheet body is provided separately from the first sheet joint and the first sheet joint that joins the first sheet-like member and the second sheet-like member, and the first sheet-like member and the first sheet-like member. It has the 2nd sheet joint part which joins 2 sheet-like members. With this configuration, the accommodating portion can be configured by a space surrounded by the first sheet-like member, the second sheet-like member, the first sheet joining portion, and the second sheet joining portion.

  Moreover, as an aspect of the solving means in the cleaning sheet according to the present invention, the sheet element can be constituted by a single sheet-like member. A sheet-like member has a lamination part constituted by laminating mutually spaced regions in a sheet-like member, and a sheet joining part that joins the sheet-like members laminated in the lamination part. With this configuration, the accommodating portion can be configured by a space surrounded by the sheet bonding portion and a region of the sheet-like member extending from one end portion to the other end portion of the sheet bonding portion.

Moreover, in order to solve the said subject, the cleaning tool which concerns on this invention is comprised by the holder and the cleaning sheet with which a holder is mounted | worn. The holding tool has a gripping part gripped by the user and a long part connected to the gripping part. The cleaning sheet has a holding region that is attached to the long portion and a cleaning region that is in contact with the object to be cleaned.
The holding area includes a sheet element and a holding portion for a holder configured by overlapping the sheet elements. That is, the storage portion is configured to be detachable from the holder.
The cleaning region includes a fiber bundle, a cleaning side sheet-like member stacked on the fiber bundle, and a joint portion that joins the fiber bundle and the cleaning side sheet-like member. The fiber bundle is configured by arranging a plurality of fiber bundle constituent fibers having a predetermined orientation. The cleaning-side sheet-like member has a first surface directed toward the fiber bundle side, a second surface opposite to the first surface, a cutting element, and a strip element constituted by the cutting element. The cutting element is composed of a plurality of cutting portions. The strip element is formed between a pair of cut portions in the plurality of cut portions, and has a first strip piece and a second strip piece. The strip element has a plurality of strip pieces, and any one of the plurality of strip pieces can be a first strip piece and a second strip piece.
The fiber bundle constituting fiber is configured to be able to stand up in a direction away from the holding region with the joint as a starting point. The first strip piece and the second strip piece have an engaging portion configured on the first surface and a second engaging portion configured on the second surface, and are separated from the holding region starting from the joint portion. It is configured to stand up in the direction. That is, a space for taking in dust is configured by the spacing between the standing fiber bundle constituting fibers, the first strip pieces, and the second strip pieces. In addition, the standing of the fiber bundle constituting fiber, the first strip piece, and the second strip piece can be performed by moving the left and right hands up and down alternately while holding both ends of the cleaning sheet by the user, This is performed by an operation in which the user shakes his / her hand holding the holding tool in the mounted state.
With the configuration described above, in a state where the first strip piece and the second strip piece stand up, the first engagement portion is configured to be able to engage with the fiber bundle constituent fibers, and the second engagement portion of the first strip piece and the second The second strips are configured to be engageable with the second engaging portion.

  The cleaning tool according to the present invention stands up in a state where the first engaging portion of the strip piece engages the fiber constituting the fiber bundle, and the first strip piece and the second strip piece are engaged with each other by the second engaging portion. Therefore, it is possible to facilitate the maintenance of the standing state of the strip and the fiber constituting the fiber bundle, particularly in the initial stage of cleaning.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the more rational construction technique regarding the structure which provides the space which takes in a dust in a cleaning area | region.

It is a perspective view of the cleaning tool which concerns on 1st Embodiment of this invention. It is a top view of the holder concerning a 1st embodiment of the present invention. It is a top view of the cleaning sheet concerning a 1st embodiment of the present invention. It is a bottom view of the cleaning sheet. It is the II-II sectional view taken on the line in FIG. It is explanatory drawing which shows a strip element. It is explanatory drawing which shows a strip element and a fiber bundle. It is explanatory drawing which shows operation | movement of a strip piece and a fiber bundle component. It is explanatory drawing of the cleaning sheet which concerns on 2nd Embodiment of this invention.

(Description of the first embodiment)
1st Embodiment which concerns on this invention is described based on FIGS. FIG. 1 is a perspective view showing a cleaning tool A100. As shown in FIG. 1, the cleaning tool A100 includes a holder C100 and a cleaning sheet B100 that is detachable from the holder C100. The cleaning sheet B100 includes a holding region B110 on which the holder C100 is mounted. In addition, the area | region contacted with the cleaning object in cleaning sheet B100 comprises cleaning area | region B120. This cleaning tool A100 is an example of the “cleaning tool” according to the present invention, the holding tool C100 is an example of the “holding tool” according to the present invention, and the cleaning sheet B100 is an example of the “cleaning sheet” according to the present invention. The holding area B110 is an example of the “holding area” according to the present invention, and the cleaning area B120 is an example of the “cleaning area” according to the present invention.

  The cleaning sheet B100 may be sold only as the cleaning sheet B100, or the cleaning sheet B100 and the holder C100 may be simultaneously packed and sold as the cleaning tool A100. The cleaning sheet B100 is a disposable type that is intended for single use, or a disposable type that is replaced with multiple times of use while retaining dust and dust removed from the surface to be cleaned. May be.

The cleaning sheet B100 defines a predetermined cleaning sheet first direction B100y and a cleaning sheet second direction B100x. The cleaning sheet second direction B100x is a direction that intersects the cleaning sheet first direction B100y, and the longitudinal direction of the cleaning sheet B100 extends in the cleaning sheet first direction B100y.
The holding area B110 extends in the cleaning sheet first direction B100y. In the cleaning sheet first direction B100y, the side where the holder C100 is attached to the cleaning sheet B100 defines the insertion side B100y1, and the side where the holder C100 is removed from the cleaning sheet B100 defines the detachment side B100y2.
In addition, the extending direction of the holder C100 is defined based on the extending direction of the cleaning sheet B100 when the holder C100 is mounted on the cleaning sheet B100. That is, in the holder C100, the long portion C110 inserted into the accommodating portion B600 of the cleaning sheet B100 extends in the cleaning sheet first direction B100y. The detailed configuration of the cleaning sheet B100 and the holder C100 will be described later.

(Description of holder)
The holder C100 will be described with reference to FIG. FIG. 2 is a plan view showing the entire holder C100.
As shown in FIG. 2, the holder C100 includes a long portion C110 that is attached to the holding region B110 of the cleaning sheet B100, and a handle portion C160 that is held by the user. The long portion C110 includes a distal end portion C120, a base portion C130, and an extending portion C140 extending between the distal end portion C120 and the base portion C130. The extending part C140 is formed in a bifurcated shape from the base part C130. Therefore, although the base part C130 is single, the extension part C140 and the front-end | tip part C120 are each comprised by two. The handle portion C160 includes a front end portion C161, a rear end portion C162, and a gripping portion C163 extending between the front end portion C161 and the rear end portion C162. The base part C130 of the long part C110 and the tip part C161 of the handle part C160 are configured to be detachable. The long portion C110 is an example of the “long portion” according to the present invention, and the grip portion C163 is an example of the “grip portion” according to the present invention. The holder C100 is molded from a resin material.

(Explanation related to the cleaning sheet)
The basic configuration of the cleaning sheet B100 will be described with reference to FIGS. 3 is a plan view showing the cleaning sheet B100, FIG. 4 is a bottom view showing the cleaning sheet B100, and FIG. 5 is a cross-sectional view taken along the line II-II in FIG.

First, the overall configuration of the cleaning sheet B100 will be described with reference to FIG.
As shown in FIG. 5, the cleaning sheet B100 is mainly composed of a sheet-like member and a fiber bundle B400. The sheet-like member refers to the first sheet B210, the second sheet B220, and the third sheet B230. Among these, in particular, the first sheet B210 and the second sheet B220 constitute a sheet element for forming the accommodating portion B600. The first sheet 210 and the second sheet B220 are examples of the “sheet element” according to the present invention.
The first sheet B210 and the second sheet B220 are overlapped. The fiber bundle B400 is disposed between the second sheet B220 and the third sheet B230.

  As shown in FIG. 5, the first sheet B210, the second sheet B220, the fiber bundle B400, and the third sheet B230 are joined by the first joining portion B710. Further, the first sheet B210, the second sheet B220, and a part of the fiber bundles B400 are joined by the second joining portion B720. The holding area B110 is configured in an area surrounded by the second joint B720 between the first sheet B210 and the second sheet B220. In this sense, it can be said that the first joint B710 constitutes a divided portion that divides the holding region B110. The first joint 710 is an example of the “joint” according to the present invention.

  In other words, the laminated sheet body constituted by laminating the first sheet B210 and the second sheet B220 is joined by the pair of second joining portions 720. Note that one second joint portion 720 and the other second joint portion 720 are disposed at positions separated from each other. The pair of second joint portions 720 is an example of the “first sheet joint portion” and the “second sheet joint portion” according to the present invention. As a result, it can be said that the accommodating portion B600 is configured by a space surrounded by the first sheet B210, the second sheet B210, and the pair of joint portions B720. The housing portion B600 is an example of the “housing portion” according to the present invention, the first sheet 210 is an example of the “first sheet-like member” according to the present invention, and the second sheet B220 is the “first seating” according to the present invention. It is an example of “two sheet-like members”. Note that the accommodating portion B600 is divided by the first joint B710.

  The cleaning region B120 includes both end regions on the cleaning sheet first direction B100y and both end regions on the cleaning sheet second direction B100x, the fiber bundle B400, and the third sheet B230 in the first sheet B210 and the second sheet B220. Consists of. Among these, the fiber bundle B400 and the third sheet B230 constitute a brush portion B500 that is brought into contact with the area to be cleaned by the user and performs cleaning. The third sheet B230 is an example of the “cleaning side sheet-like member” according to the present invention, and the fiber bundle B400 is an example of the “fiber bundle” according to the present invention.

  In the cleaning sheet B100 according to the first embodiment, the brush portion B500 is formed only on the second sheet B220 side. On the other hand, by joining the fiber bundle B400 to the first sheet B210 side and the second sheet B220 side, the brush part B500 can be formed on both sides of the holding part B600.

  As shown in FIG. 3, the holding part B600 has openings B610 at both ends. The long part C110 of the holder C100 can be inserted from either opening B610. As shown in FIG. 3, in the cleaning sheet first direction B100y, the first sheet B210 is formed shorter than the second sheet B220. As shown in FIG. 3, the first sheet B210 and the second sheet B220 have a plurality of cut portions B310 extending in the second direction B100x of the cleaning sheet. As shown in FIG. 4, the third sheet B230 also has a plurality of cut portions B310 extending in the cleaning sheet second direction B100x. A strip B310 is formed between adjacent cut portions B310 in the first sheet B210, the second sheet B220, and the third sheet B230. The strip piece B310 has a function of contacting the object to be cleaned by the user and scraping out dust.

In other words, as shown in FIGS. 3 and 4, the first sheet B <b> 210, the second sheet B <b> 220, and the third sheet B <b> 230 have a cutting element B <b> 330 and a strip element B <b> 300 configured by the cutting element B <b> 330. The cutting element B330 is constituted by a plurality of cutting parts B331, and the strip element B300 can be said to be formed between a pair of cutting parts B331 in the plurality of cutting parts B331. With this configuration, the strip element B300 includes a plurality of strip pieces B310.
The cutting element B330 is an example of the “cutting element” according to the present invention, the strip element B300 is an example of the “strip element” according to the present invention, and the cutting part B310 is an example of the “cutting part” according to the present invention. is there.

  The first sheet B210, the second sheet B220, and the third sheet B230 are formed of a flexible nonwoven fabric or the like. Since the first sheet B210, the second sheet B220, and the third sheet B230 are welded by the welded portions B710 and B720, the first sheet B210, the second sheet B220, and the third sheet B230 are preferably formed of a nonwoven fabric made of heat-meltable fibers (thermoplastic fibers). Next, the configuration of the first sheet B210, the second sheet B220, and the third sheet B230 will be described.

  As long as the 1st sheet | seat B210 and the 2nd sheet | seat B220 have the intensity | strength which can be used, such as a nonwoven fabric, a resin film, and the cloth containing a synthetic fiber, what kind of thing can be used. In particular, in terms of strength, a through-air nonwoven fabric having a basis weight of 10 to 100 gsm using a core-sheath composite fiber having a core part made of polyethylene terephthalate and a sheath part made of polyethylene is preferable.

  As the third sheet B230, any nonwoven fabric, resin film, cloth containing synthetic fibers, or the like having strength that can be used can be used. When the third sheet B230 is a nonwoven fabric, particularly in terms of strength, a through-air nonwoven fabric having a basis weight of less than 30 gsm using a core-sheath composite fiber having a core portion made of polyethylene terephthalate and a sheath portion made of polyethylene is suitable. In this case, the basis weight of the third sheet B230 is preferably lower than the basis weight of the first sheet B210 and the second sheet B220. With such a configuration, the third sheet B230 can be configured to be lighter and softer than the first sheet B210 and the second sheet B220. As a result, the strip B310 of the third sheet B230 can be raised efficiently as described later.

Next, the configuration of the third sheet B230 and the fiber bundle B400 will be described with reference to FIGS. FIG. 6 is an explanatory view of the strip element B300, and FIG. 7 is an explanatory view showing the strip element and the fiber bundle.
As shown in FIG. 6, the third sheet B230 is a strip that intersects the strip strip first direction B310y and the strip strip first direction B310y defined by the direction extending from the first joint portion 710 and the tip of the strip element B300. And a second half direction B310x. The strip piece first direction B310y is an example of the "first direction" according to the present invention, and the strip piece second direction B310x is an example of the "second direction" according to the present invention.

  As shown in FIG. 6, the strip piece B310 includes a connection end B310b on the first joint B710 side and an open end B310a located on the opposite side to the connection end B310b on the strip first direction B310y. Have. In addition, among the plurality of strip pieces B310, a pair of strip pieces B310 facing each other with the first connection portion B710 interposed therebetween are defined as a first strip piece B321 and a second strip piece B322, respectively. The first strip piece B321 is an example of the “first strip piece” according to the present invention, and the second strip piece B322 is an example of the “second strip piece” according to the present invention.

In addition, when the 3rd sheet | seat B230 is comprised with a nonwoven fabric, the fiber which comprises the said nonwoven fabric is described as nonwoven fabric structure fiber B231. This nonwoven fabric constituting fiber B231 is an example of the “nonwoven fabric constituting fiber” according to the present invention. Nonwoven fabric constituent fiber B231 is illustrated only in FIG. 7 for convenience of explanation. Nonwoven fabric constituent fiber B231 is arrange | positioned so that it may have orientation in strip strip 1st direction B310y.
Further, as shown in FIG. 7, the fiber bundle B400 is configured by arranging a plurality of fiber bundle constituting fibers B410 having a predetermined orientation. More specifically, the fiber bundle constituting fiber B410 has an orientation in the strip piece first direction B310y. As will be described later, the strip piece B310 and the fiber bundle constituting fiber B410 are deformed during the cleaning operation. Therefore, the orientation of the fiber bundle constituent fiber B410 being the strip piece first direction B310y indicates a state where the strip piece B310 and the fiber bundle constituent fiber B410 are not moved or a design state. This fiber bundle constituting fiber B410 is an example of the “fiber bundle constituting fiber” according to the present invention.
The fiber bundle constituent fiber B410 has a connection end B410b on the first joint B710 side and an open end B410a located on the opposite side of the connection end B410b.

  The fiber bundle constituting fiber B410 indicates a structure formed of “fibers”. In the present invention, “fiber” means a typical single fiber, or a typical fiber formed in the length direction and / or the radial direction (twisted yarn, spun yarn, plural lengths). Thread material in which fibers are partially connected). Here, the “typical fiber” is a structural unit such as a yarn or a woven fabric, and has a length that is sufficiently long compared to the thickness, and is in a thin and flexible form. Specifically, long continuous fibers are long fibers (filaments), and short fibers are short fibers (staples). With this configuration, the fiber bundle constituent fiber B410 has flexibility.

More specifically, the fiber bundle B400 is an aggregate of fiber bundle constituent fibers B410 manufactured from polyethylene, polypropylene, polyethylene terephthalate, nylon, rayon, or the like, and what is generally called tow can be used. . At this time, the fiber bundle constituting fiber B410 is preferably a crimped fiber having a fineness of 0.5 to 66 dtex and a crimp number of 5 to 30 per inch. Furthermore, it is preferable that it is a core-sheath composite fiber whose core is polyethylene terephthalate and whose sheath is polyethylene.
The fiber bundle B400 is coated with liquid paraffin to improve the dust absorption effect.

  As shown in FIG. 7, the third sheet B230 has a first surface B311 directed to the fiber bundle B400 side, and a second surface B312 opposite to the first surface B311. The first surface B311 is an example of the “first surface” according to the present invention, and the second surface B312 is an example of the “second surface” according to the present invention. As described above, the fiber bundle constituent fibers B410 and the strip pieces B310 have flexibility. Therefore, the fiber bundle constituent fiber B410 and the strip piece B310 are configured to be able to stand up in the direction away from the holding region B110 with the first joint B710 as a starting point.

As illustrated in FIG. 7, the strip piece B310 includes a first engagement portion B311a configured on the first surface B311 and a second engagement portion B312a configured on the second surface B312. The first engagement portion B311a is an example of the “first engagement portion” according to the present invention, and the second engagement portion B312a is an example of the “second engagement portion” according to the present invention.
The first engagement portion B311a is configured by the nonwoven fabric constituent fiber B231 exposed on the first surface B311 and the second engagement portion B312a is configured by the nonwoven fabric configuration fiber B231 exposed on the second surface B312.

  Next, the operation of the cleaning tool A100 according to the first embodiment of the present invention will be described based on FIG. When using the cleaning tool A100, the user raises the strip B310 and the fiber bundle constituting fiber B410 of the cleaning sheet B100. When raising the brush, for example, the user holds both ends of the cleaning sheet B100 on the cleaning sheet first direction B100y with both hands, and alternately raises and lowers both ends, and then attaches the cleaning sheet B100 to the holder C100. . Further, the raising can also be performed by shaking the hand holding the holding part C163 up and down while the holder C100 is mounted on the cleaning sheet B100.

FIG. 8 shows the state of the raised strips B310 and the fiber bundle constituent fibers B410. For convenience of explanation, FIG. 8 shows only the first strip B321, the second strip B322, and some of the fiber bundle constituent fibers B410.
In a state where the first strip piece B321 and the second strip piece B322 are erected, the first engagement portion B311a is engaged with the fiber bundle constituting fiber B410. At this time, in the engagement between the first engaging portion B311a and the fiber bundle constituting fiber B410, the first engaging portion B311a and the entire fiber bundle constituting fiber B410 do not need to be engaged, and the first engaging portion. It suffices if the partial regions of B311a and fiber bundle constituting fiber B410 are engaged with each other.
Further, the second engagement portion B312a of the first strip piece B321 and the second engagement portion B312a of the second strip piece B322 are engaged with each other. At this time, in the engagement of the second engagement portion B312a of the first strip piece B321 and the second engagement portion B312a of the second strip piece B322, the second engagement portions B312a of the two strip pieces B322 are connected to each other. It is not necessary for the whole to engage, and it is sufficient if the partial areas of the second engaging portion B 312a of the two strips B322 are engaged with each other.

  That is, in the cleaning tool A100 according to the first embodiment of the present invention, when the strip B310 and the fiber bundle constituting fiber B410 are raised, the strip B310 and the fiber bundle constituting fiber B410 are engaged, The strip pieces B310 are engaged with each other. Therefore, the strip piece B310 and the fiber bundle constituting fiber B410 constituting the brush portion B500 can be efficiently raised, particularly in the initial stage of the cleaning operation, between the strip piece B310 and the fiber bundle constituting fiber B410. It is possible to suitably secure a dust adhering space. Moreover, since the volume feeling by visual observation of the brush part B500 is improved, it is possible to increase a sense of expectation for performing efficient cleaning work on the user.

(Description of preferred third sheet)
In order to raise the strips B310 and the fiber bundle constituent fibers B410 described above, it was confirmed that the following physical properties can be given as an appropriate configuration of the nonwoven fabric constituting the third sheet B230. In addition, it is preferable that the nonwoven fabric constituent fiber B231 has orientation in the strip piece first direction B310y.

  In raising the third sheet B230, it is preferable that the nonwoven fabric has low rigidity. Specifically, the third sheet B230 is preferably a nonwoven fabric having a rigidity in the first direction of 69.7 mm to 80.0 mm and a rigidity in the second direction of 35.0 mm to 39.9 mm. The rigidity is measured based on JIS L 8.21 bending resistance (cantilever A method). From this, it can be said that the third sheet B230 preferably has a rigidity in the first direction larger than a rigidity in the second direction.

In order to configure the first engagement portion B311a and the second engagement portion B312a, it is necessary to appropriately dispose the nonwoven fabric constituting fiber B231 on the first surface B311 and the second surface B322. The said structure can be achieved by enlarging the distance of adjacent nonwoven fabric constituent fiber B231. An increase in the distance between the adjacent nonwoven fabric constituting fibers B231 means that the total light transmittance of the nonwoven fabric is increased.
Specifically, it is preferable that the third sheet B230 has a total light transmittance of 80% or more. More specifically, the nonwoven fabric is preferably 83.03 percent to 88.43 percent. The total light transmittance is measured based on JIS-K7105. More specifically, the measurement was performed based on a light irradiation side light type color difference meter Z-300A manufactured by Nippon Denshoku Industries Co., Ltd. having an address in 4-45-17 Sengoku, Bunkyo-ku, Tokyo, Japan.

Considering the function performed by the first engagement portion B311a and the second engagement portion B312a, the average friction coefficient in the first direction B310y of the strips on the second surface B312 is the average friction in the first direction B310x of the strips on the first surface B311. It is preferably larger than the coefficient. With this configuration, the engagement between the plurality of strip pieces B310 can be made good. That is, since the fiber bundle constituent fiber B410 is engaged with the strip piece B310 engaged in a good state, the certainty of standing of the plurality of strip pieces B310 and the fiber bundle constituent fiber B410 can be improved.
In order to prevent the engaged strip pieces B310 from shifting in the cleaning sheet first direction B100y, the average surface friction coefficient in the second strip direction B310x on the second surface B312 is the first surface friction coefficient. It is preferable that the average surface friction coefficient in the strip strip second direction B310x on the surface B311 is larger.

In this sense, the third sheet B230 has an average surface friction coefficient of 0.126 mu to 0.129 mu in the strip first direction B310y on the first surface B311 and a strip strip first direction on the second surface B312. A nonwoven fabric having an average surface friction coefficient of B310y of 0.138 mu to 0.145 mu is preferable.
The third sheet B230 has an average surface friction coefficient of 0.136 mu to 0.137 mu in the strip second direction B310x on the first surface B311 and an average of the strip strip second direction B310x on the second surface B312. Nonwoven fabrics having a surface friction coefficient of 0.145 mu to 0.163 mu are preferred.
The average surface friction coefficient was evaluated using Kato Tech Co., Ltd. KES-FB4 having an address in Nishikujo Karatocho 26, Minami-ku, Kyoto, Japan. The measurement conditions are as follows: the size of the nonwoven fabric used as the sample is 100 mm in length and 100 mm in width, the tension is 400 g, the static static load is 50 g, the static static load is 10 g, and the standard speed is 1 mm per second. It is.

In order to improve the reliability of the engagement state between the strip B10, the fiber bundle constituent fiber B410, and the strip B310, it is preferable that the surface of the third sheet B230 is rough. In this respect, the third sheet B230 has an average deviation of the surface roughness in the first direction B310y on the first surface B311 from 3.225 microns to 3.350 microns, and the strips on the second surface B312 It is preferable that the nonwoven fabric has an average deviation of surface roughness in one direction B310y of 3.250 microns to 3.535 microns. Therefore, in the third sheet B230, the average deviation of the surface roughness in the first direction B310y of the strip pieces on the second surface B312 is larger than the average deviation of the surface roughness in the first direction B310y of the strip pieces on the first surface B311. It can be said that a large size is preferable.
In addition, the average deviation of surface roughness was evaluated using KES-FB4 manufactured by Kato Tech Co., Ltd. The measurement conditions are as follows: the size of the nonwoven fabric used as the sample is 100 mm in length and 100 mm in width, the tension is 400 g, the static static load is 50 g, the static static load is 10 g, and the standard speed is 1 mm per second. It is.

Based on the conditions of the nonwoven fabric suitable for the third sheet B230 described above, a cleaning sheet B100 having the next cleaning region B120 was created.
(Configuration of Cleaning Area B120 According to Example)
The nonwoven fabric constituting fiber B231 is a core-sheath composite fiber having a core material of polyethylene terephthalate and a polyethylene sheath material, a fineness of 3.2 dtex, and an average fiber length of 39 mm.
-The nonwoven fabric has a basis weight of 20 gsm.
-The nonwoven fabric is made through air.
-The fiber bundle B400 was obtained by arranging about 37500 fibers having a fineness of 3.3 dtex (the total fineness is about 1240 dtex). "
(Configuration of Cleaning Area B120 According to Comparative Example)
-As the nonwoven fabric constituting fiber B231, a core-sheath composite fiber having a core material of polyethylene terephthalate and a polyethylene sheath material was used. As the core-sheath composite fiber, 35% was blended with a fineness of 2.2 dtex and an average fiber length of 51 mm, and 65 percent with a fineness of 2.8 dtex and an average fiber length of 45 mm.
-The nonwoven fabric has a basis weight of 30 gsm.
-The manufacturing method of the nonwoven fabric is through air.
-The fiber bundle B400 was obtained by arranging about 31250 fibers having a fiber bundle constituting fiber B410 having a fineness of 3.5 dtex (total fineness of about 11 million dtex).

  The strip pieces and the fiber bundle constituent fibers were raised under the same conditions for the cleaning sheet A100 having the cleaning region B120 according to the above example and the cleaning sheet having the cleaning region according to the comparative example, and the results were confirmed by visual observation. As a result, it was confirmed that the cleaning sheet A100 according to the example can obtain a more suitable raised state than the cleaning sheet according to the comparative example.

Furthermore, assuming an actual product, the size of the third sheet B230 corresponding to seven strip sheets in the strip strip second direction B310x is defined as 40 mm square. The nonwoven fabric of the Example which concerns on the said conditions, and a comparative example was created, and thickness was measured. In measuring the thickness, a PEACOCK measuring instrument manufactured by Ozaki Seisakusho Co., Ltd. having an address in 1-63-11 Tokiwadai, Itabashi-ku, Tokyo, Japan was used. The PEACOCK measuring instrument has a measurement surface with a diameter of 44 mm and a measurement pressure of 3 g / cm 2.
As a result, the nonwoven fabric of the example had a thickness of 0.315 mm, and the nonwoven fabric of the comparative example had a thickness of 0.6052 mm.
From this result, it was confirmed that the nonwoven fabric of the example is preferably thinner than the nonwoven fabric of the comparative example. Furthermore, since the fabric weight of the nonwoven fabric of an Example is lower than the fabric weight of the nonwoven fabric of a comparative example, in order to obtain the good raising state of the strip piece B310, it has confirmed that a thin and light nonwoven fabric was preferable.

(Description of Second Embodiment)
Next, the cleaning tool A100 according to the second embodiment will be described with reference to FIG. In addition, in cleaning tool A100 of 2nd Embodiment, about the components and structure which show | play the same structure and the same function as cleaning tool A100 of 1st Embodiment, while attaching | subjecting the same code | symbol, the description is abbreviate | omitted.
The cleaning tool A100 of the second embodiment is different from the cleaning tool A100 of the first embodiment in the configuration of the holding region B110. That is, the accommodating part B600 in the cleaning tool A100 of the second embodiment is configured by only the first sheet B210. The first sheet B210 is an example embodiment that corresponds to the “single sheet-like member” according to the present invention.

  As shown in FIG. 9, the first sheet B <b> 210 is configured by stacking regions separated from each other to form a stacked portion. The laminated part is joined by a laminated part constituted by laminating the joint part and a joint part B730 laminated in the laminated part. This joint B730 is an example of the “sheet joint” according to the present invention. With this configuration, the accommodating portion B600 is configured by a space surrounded by the joint portion B730 and the region of the first sheet B210 extending from one end portion to the other end portion of the joint portion B730.

  In the cleaning tool A100 according to the second embodiment, the extending part C140 of the holder C100 can be attached to the housing part B600. Moreover, since the structure of cleaning area | region B120 is the same as 1st Embodiment, it is possible to show the same effect as the effect which concerns on standing of strip strip B310 and fiber bundle structural fiber B410.

(Correspondence of each component of embodiment or example of the present invention)
Cleaning tool A100 is an example embodiment that corresponds to the “cleaning tool” according to the present invention. The holder C100 is an example of the “holder” according to the present invention. The cleaning sheet B100 is an example of the “cleaning sheet” according to the present invention. The holding area B110 is an example of the “holding area” according to the present invention. The cleaning area B120 is an example of the “cleaning area” according to the present invention. The long portion C110 is an example of the “long portion” according to the present invention. The gripping part C163 is an example of the “grip part” according to the present invention. The first sheet 210 and the second sheet B220 are examples of the “sheet element” according to the present invention. The first joint 710 is an example embodiment that corresponds to the “joint” according to the present invention. The pair of second joint portions 720 is an example of the “first sheet joint portion” and the “second sheet joint portion” according to the present invention. The first sheet 210 is an example of the “first sheet-like member” according to the present invention. The second sheet B220 is an example embodiment that corresponds to the “second sheet-like member” according to the present invention. The accommodating part B600 is an example of the “accommodating part” according to the present invention. The third sheet B230 is an example embodiment that corresponds to the “cleaning side sheet-like member” according to the present invention. The fiber bundle B400 is an example of the “fiber bundle” according to the present invention. The cutting element B330 is an example embodiment that corresponds to the “cutting element” according to the present invention. The strip element B300 is an example of the “strip element” according to the present invention. The cut portion B310 is an example embodiment that corresponds to the “cut portion” according to the present invention. The strip first direction B310y is an example of the “first direction” according to the present invention. The strip piece second direction B310x is an example of the "second direction" according to the present invention. The first strip strip B321 is an example of the “first strip strip” according to the present invention. The second strip piece B322 is an example of the “second strip piece” according to the present invention. Nonwoven fabric constituent fiber B231 is an example of "nonwoven fabric constituent fiber" according to the present invention. The fiber bundle constituent fiber B410 is an example of the “fiber bundle constituent fiber” according to the present invention. The first surface B311 is an example of the “first surface” according to the present invention. The second surface B312 is an example of the “second surface” according to the present invention. The first engagement portion B311a is an example embodiment that corresponds to the “first engagement portion” according to the present invention. The second engagement portion B 312a is an example embodiment that corresponds to the “second engagement portion” according to the present invention. The first sheet B210 is an example of the “single sheet-like member” according to the present invention. The joint B730 is an example of the “sheet joint” according to the present invention.

A100 Cleaning tool B100 Cleaning sheet B100x Cleaning sheet second direction B100y Cleaning sheet first direction B100y1 Insertion side B100y2 Release side B110 Holding area B120 Cleaning area B210 First sheet (sheet element, first sheet-like member)
B220 Second sheet (sheet element, second sheet-like member)
B230 3rd sheet (cleaning side sheet-like member)
B231 Non-woven fabric constituent fiber B300 Strip element B310 Strip strip B310a Open end B310b Connection end B310x Strip strip second direction (second direction)
B310y strip strip first direction (first direction)
B311 1st surface B311a 1st engagement part B312 2nd surface B312a 2nd engagement part B321 1st strip piece B322 2nd strip piece B330 cutting element B331 cutting part B400 fiber bundle B410 fiber bundle constituent fiber B410a open end B410b connection End B500 Brush part B600 Housing part B610 Opening B710 First joint part (joint part)
B720 second joint (first sheet joint, second sheet joint)
B730 joint (sheet joint)
C100 holder C110 long part C120 tip part C130 base part C140 extension part C141 first extension part C142 second extension part C151 tip side convex part C152 base part convex part C160 handle part C161 tip part C162 rear end part C163 gripping Part

Claims (18)

A cleaning sheet attached to a holding tool,
A holding area to be mounted on the holder, and a cleaning area that comes into contact with the object to be cleaned;
The holding region has a sheet element and a holding portion of the holder configured by overlapping the sheet element,
The cleaning region includes a fiber bundle, a cleaning side sheet-like member stacked on the fiber bundle, and a joint that joins the fiber bundle and the cleaning side sheet-like member,
The fiber bundle is configured by arranging a plurality of fiber bundle constituent fibers having a predetermined orientation,
The cleaning-side sheet-like member has a first surface directed to the fiber bundle side, a second surface opposite to the first surface, a cutting element, and a strip element constituted by the cutting element. And
The cutting element is constituted by a plurality of cutting portions,
The strip element is formed between a pair of cut portions in the plurality of cut portions, and has a first strip piece and a second strip piece,
The fiber bundle constituting fiber is configured to be able to stand up in a direction away from the holding region with the joint as a starting point,
The first strip piece and the second strip piece have a first engagement portion configured on the first surface and a second engagement portion configured on the second surface, and the joint portion is It is configured to be able to stand up in a direction away from the holding area as a starting point,
In a state where the first strip piece and the second strip piece stand up, the first engagement portion is configured to be engageable with the fiber bundle constituting fiber, and the second engagement portion of the first strip piece, The cleaning sheet, wherein the second strips are configured to be able to engage with each other. The cleaning sheet according to claim 1,
The cleaning-side sheet-like member has a first direction defined by a direction extending between the joining portion and the tip end portion of the strip element, and a second direction intersecting the first direction. Sheet. The cleaning sheet according to claim 1 or 2,
The cleaning side sheet-like member is composed of a nonwoven fabric,
The said nonwoven fabric has the some nonwoven fabric structure fiber which has orientation in the said 1st direction, The cleaning sheet characterized by the above-mentioned. The cleaning sheet according to claim 3,
The cleaning sheet according to claim 1, wherein the first engagement portion is configured by the nonwoven fabric constituting fiber exposed on the first surface. The cleaning sheet according to claim 3 or 4,
The said 2nd engaging part is comprised by the said nonwoven fabric constituent fiber exposed to the said 2nd surface, The cleaning sheet | seat characterized by the above-mentioned. It is a cleaning sheet given in any 1 paragraph of Claims 3-5,
The said nonwoven fabric is a cleaning sheet characterized by the rigidity of the said 1st direction being larger than the rigidity of the said 2nd direction. A cleaning sheet according to any one of claims 3 to 6,
The nonwoven fabric has a rigidity in the first direction of 69.7 mm to 80.0 mm and a rigidity in the second direction of 35.0 mm to 39.9 mm. It is a cleaning sheet given in any 1 paragraph of Claims 3-7,
The nonwoven fabric has a total light transmittance of 83% or more. A cleaning sheet according to any one of claims 3 to 8,
The non-woven fabric has a total light transmittance of 83.03 percent to 88.43 percent. It is a cleaning sheet given in any 1 paragraph of Claims 3-9,
The cleaning sheet, wherein the nonwoven fabric has an average surface friction coefficient in the first direction on the second surface larger than an average surface friction coefficient in the first direction on the first surface. It is a cleaning sheet given in any 1 paragraph of Claims 3-10,
The nonwoven fabric has an average surface friction coefficient in the first direction on the first surface of 0.126 mu to 0.129 mu, and an average surface friction coefficient in the first direction on the second surface of 0.138. A cleaning sheet characterized in that the mu is 0.145 mu. The cleaning sheet according to any one of claims 3 to 11,
The cleaning sheet, wherein the nonwoven fabric has an average surface friction coefficient in the second direction on the second surface larger than an average surface friction coefficient in the second direction on the first surface. The cleaning sheet according to any one of claims 3 to 12,
The nonwoven fabric has an average surface friction coefficient in the second direction on the first surface of 0.136 mu to 0.137 mu and an average surface friction coefficient in the second direction on the second surface of 0.145. A cleaning sheet characterized in that the mu is 0.163 mu. It is a cleaning sheet given in any 1 paragraph of Claims 3-13,
The cleaning sheet, wherein the nonwoven fabric has an average deviation of surface roughness in the first direction on the second surface that is larger than an average deviation of surface roughness in the first direction on the first surface. The cleaning sheet according to any one of claims 3 to 14,
The nonwoven fabric has an average deviation of the surface roughness in the first direction on the first surface from 3.225 microns to 3.350 microns, and an average deviation of the surface roughness in the first direction on the second surface. The cleaning sheet is characterized in that is from 3.250 microns to 3.535 microns. The cleaning sheet according to any one of claims 1 to 15 ,
The sheet element is constituted by a laminated sheet body formed by laminating a first sheet-like member and a second sheet-like member,
The laminated sheet body is provided such that a first sheet joining portion that joins the first sheet-like member and the second sheet-like member and the first sheet joining portion are provided apart from each other and the first sheet-like member. And a second sheet joining part that joins the second sheet-like member,
The accommodating portion is configured by a space surrounded by the first sheet-like member, the second sheet-like member, the first sheet joining portion, and the second sheet joining portion. Cleaning sheet. The cleaning sheet according to any one of claims 1 to 16 ,
The sheet element is constituted by a single sheet-like member,
The sheet-like member has a laminated portion configured by laminating regions separated from each other in the sheet-like member, and a sheet joining portion that joins the sheet-like members laminated in the laminated portion,
The said accommodating part is comprised by the space enclosed by the sheet | seat junction part and the area | region of the said sheet-like member ranging from one edge part in the said sheet | seat junction part to the other edge part, The cleaning sheet | seat characterized by the above-mentioned. . A cleaning tool comprising a holder and a cleaning sheet attached to the holder,
The holder is
A gripper to be gripped by the user;
A long portion connected to the grip portion,
The cleaning sheet is
A holding area to be attached to the elongate part, and a cleaning area to be brought into contact with the object to be cleaned,
The holding region has a seat element and a storage portion of the elongated portion configured by overlapping the seat element,
The cleaning region includes a fiber bundle, a cleaning side sheet-like member stacked on the fiber bundle, and a joint that joins the fiber bundle and the cleaning side sheet-like member,
The fiber bundle is configured by arranging a plurality of fiber bundle constituent fibers having a predetermined orientation,
The cleaning-side sheet-like member has a first surface directed to the fiber bundle side, a second surface opposite to the first surface, a cutting element, and a strip element constituted by the cutting element. And
The cutting element is constituted by a plurality of cutting portions,
The strip element is formed between a pair of cut portions in the plurality of cut portions, and has a first strip piece and a second strip piece,
The fiber bundle constituting fiber is configured to be able to stand up in a direction away from the holding region with the joint as a starting point,
The first strip piece and the second strip piece have a first engagement portion configured on the first surface and a second engagement portion configured on the second surface, and the joint portion is It is configured to be able to stand up in a direction away from the holding area as a starting point,
In a state where the first strip piece and the second strip piece stand up, the first engagement portion is configured to be engageable with the fiber bundle constituting fiber, and the second engagement portion of the first strip piece, The cleaning tool, wherein the second strip pieces are configured to be engageable with each other.

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