JP2010227481A - Cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaner capable of fully removing dust on different kinds of objects having an uneven surface such as key tops of key switches located on a keyboard as well as dust attached to a channel formed between key switches located side by side. <P>SOLUTION: The present invention relates to a cleaner to remove dust on an object. The surface of the cleaner to be located facing to an object has flexibility. A plurality of blades which restore their original condition with its elastic deformation function when the load is removed even if it is deformed by the load formed in a staircase pattern so that they project, and the cleaner is provided with a mounting mechanism to mount a dust cloth to cover the blades. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cleaning tool, and more particularly, deposits on or adheres to various objects having irregularities on the surface, such as keyboards of various devices such as personal computers and word processors, or remote controllers and switch panels of various products. Cleaning object such as dust or dirt (in this specification, “cleaning object such as dust or dirt deposited or adhered to various objects” is simply referred to as “dust” as appropriate. .) Is removed from the object and the object is used for cleaning and disinfecting the object.

  In recent years, various devices equipped with a keyboard such as a personal computer and a word processor are often used not only in offices but also in homes.

  In general, when cleaning the dust on the keyboard, the dust on the keyboard is removed by wiping the keyboard with a dust cloth or the like.

However, it is possible to remove dust on the top surface (key top) of the key switches arranged on the keyboard by simply wiping the keyboard with a rag, etc., but the key switch and key switch adjacent to each other can be removed. There is a problem that the dust adhering in the grooves formed therebetween cannot be removed sufficiently.

  For this reason, in order to clean the dust adhering in the groove formed between the key switches adjacent to each other, a separate operation such as removing the dust using a cotton swab or the like is required. There were further problems.

These problems are not limited to keyboards, and similar problems have been pointed out for objects with uneven surfaces, such as remote controls and switch boards for various products.

The prior art that the applicant of the present application knows at the time of filing a patent application is not an invention according to a known literature invention, so there is no prior art document information to be described in the present specification.

FIG. 1 (a) is a top perspective view of the cleaning tool according to the present invention, FIG. 1 (b) is a bottom perspective view of the cleaning tool according to the present invention, and FIG. 1 (c) is a cleaning tool according to the present invention. It is explanatory drawing which shows the state isolate | separated into the case and the inner. 2 (a), (b), (c), (d), and (e) show a procedure for attaching a rectangular nonwoven fabric as a wiping cloth for cleaning to the cleaner according to the present invention as shown in FIG. 2 (a) → FIG. 2 (b). → FIG. 2 (c) → FIG. 2 (d) → FIG. 2 (e) ”is an explanatory view continuously shown in the order of FIG. 2 (a). FIG. 2B is an explanatory view showing a state in which one corner of the nonwoven fabric is sandwiched between the notches formed in the inner, and FIG. 2B shows three corners of the nonwoven fabric in the notches formed in the inner. 2 (c) is an explanatory view showing a state in which all four corners of the nonwoven fabric are sandwiched in the notch formed in the inner part, and FIG. Bottom perspective explanation showing a state in which the inner with all four corners of the nonwoven fabric sandwiched in the notch is housed in the case , And the FIG. 2 (e) is a top perspective view showing a state in which housing the inner sandwiching all four corners of the nonwoven fabric in the notch portion to the case. 3 (a) and 3 (b) are explanatory views of the case of the cleaning tool according to the present invention, FIG. 3 (a) is a bottom explanatory view, and FIG. 3 (b) is a side view of the arrow A in FIG. 3 (a). FIG. 4A, 4B, and 4C are explanatory views showing the upper member when the inner part of the cleaning tool according to the present invention is disassembled into an upper member and a lower member, and FIG. 4 (b) is a side explanatory view as viewed in the direction of arrow B in FIG. 4 (a), and FIG. 4 (c) is a cross-sectional explanatory view taken along the line CC in FIG. 5A, 5B, and 5C are explanatory views showing the lower member when the inner part of the cleaning tool according to the present invention is disassembled into an upper member and a lower member, and FIG. 5 (b) is a top view, FIG. 5 (c) is a side view as viewed from the direction of arrow D in FIG. 5 (a), and FIG. 5 (d) is an E- It is sectional explanatory drawing by E line. 6 (a) and 6 (b) are enlarged views of the main part of the lower member of the inner part of the cleaning tool according to the present invention, and FIG. 6 (a) is an area surrounded by a broken line indicated by reference numeral F in FIG. 5 (a). FIG. 6B is an enlarged explanatory view, and FIG. 6B is a side explanatory view of FIG. 6A corresponding to FIG. 5C in the region shown in FIG. FIG. 7 is a cross-sectional explanatory view of the cleaning tool according to the present invention in a state where the inner is assembled to the case. 8 (a) and 8 (b) show that the non-woven fabric and the keyboard are brought into contact with each other, the cleaning tool according to the present invention is pressed against the keyboard, and the cleaning tool according to the present invention is rubbed on the keyboard. FIG. 8A is a conceptual explanatory diagram showing the state of the blade before the cleaning tool according to the present invention is pressed against the keyboard, and FIG. It is a conceptual explanatory view showing the state of the blade when the cleaning tool is pressed against the keyboard. FIG. 9 is a table summarizing the experimental results of the inventors of the present application. 10 (a), 10 (b), and 10 (c) are explanatory views showing a modification of the upper member of the inner part of the cleaning tool according to the present invention, FIG. 10 (a) is an explanatory view of the bottom surface, and FIG. FIG. 10A is a side explanatory view taken along the arrow H in FIG. 10A, and FIG. 10C is a cross-sectional explanatory view taken along the line I-I in FIG. 11 (a), (b), (c), (d), and (e) show a procedure for attaching a non-woven fabric to the inner shown in FIG. 10 as "FIG. 11 (a) → FIG. 11 (b) → FIG. 11 (c) → FIG. (D) → FIG. 11 (e) ”is an explanatory view continuously shown in the order, and FIG. 11 (a) is an explanatory view showing a state where the upper member and the lower member of the inner are separated, and FIG. b) is an explanatory view showing a state in which an inner is placed on a non-woven fabric placed on a table and the upper member of the inner is turned up, and FIG. 11 (c) is an upper member of the inner turned up; It is explanatory drawing which shows the state which arrange | positions the edge part of a nonwoven fabric between lower members, FIG.11 (d) lowers the inner upper member which turned up, and inserts a nonwoven fabric between the said upper member and lower member It is explanatory drawing which shows a state, and FIG.11 (e) is an upper member and a lower member. It is a bottom perspective view showing a state in which housing the inner sandwiching the nonwoven fabric on the case. FIG. 12 is an explanatory view showing a modified example of the inner upper member of the cleaning tool according to the present invention, and is a side explanatory view corresponding to FIG. 13 (a) (b) (c) (d) is a procedure for attaching a non-woven fabric to the inner shown in FIG. 12 as shown in FIG. 13 (a) → FIG. 13 (b) → FIG. 13 (c) → FIG. 13 (a) is an explanatory view continuously shown in the order of "", and FIG. 13 (a) is a corner portion of the nonwoven fabric placed on a non-woven fabric placed on a table and a notch formed in the inner. 13 (b) is an explanatory view showing a state in which two corners of the nonwoven fabric are sandwiched between cutout portions formed in the inner, and FIG. 13 (c) is an inner view. It is explanatory drawing which shows the state which inserted | pinched three corners of the nonwoven fabric in the notch part formed in FIG. 13, (d) inserted all four corner parts of the nonwoven fabric in the notch part formed in the inner part. It is explanatory drawing which shows a state.

  The present invention has been made in view of the various problems of the conventional techniques as described above, and the object of the present invention is to remove dust adhering to various objects having uneven surfaces from the object. It is intended to provide a cleaning tool that can be used.

  In particular, an object of the present invention is to form dust between the key switches adjacent to each other as well as to remove dust on the key tops of the key switches arranged on the keyboard. An object of the present invention is to provide a cleaning tool capable of sufficiently removing dust adhered in the groove.

  In order to achieve the above object, a cleaning tool according to the present invention is a cleaning tool that removes dust on a keyboard, and has a flexible surface that is disposed to face a key switch of the keyboard, and is elastically deformed. A plurality of blades that return to their original state when the load is removed even if the load is deformed are formed so as to protrude stepwise, and an attachment mechanism that attaches a wiping cloth to cover the blade is provided. I did it.

  The cleaning tool according to the present invention is the cleaning tool according to the present invention described above, wherein the blade has a columnar body shape having a teardrop shape.

  Further, the cleaning tool according to the present invention is the cleaning tool according to the present invention described above, wherein the blade has a front end portion where the tip of the teardrop shape is rounded and a side where the tip is sharply stretched at the rear end. A lattice pattern is formed of units that are configured by arranging four rows of blades composed of three blades arranged in series so as to face each other in the same direction in a cross shape at intervals of 90 degrees. Thus, they are arranged continuously.

  Since the present invention is configured as described above, it is possible to provide a cleaning tool capable of removing dust attached to various objects having uneven surfaces from the object. Play.

  Moreover, since the present invention is configured as described above, it is possible to remove dust on the key tops of the key switches arranged on the keyboard, as well as the adjacent key switches and key switches. There is an excellent effect that it is possible to provide a cleaning tool capable of sufficiently removing dust adhering in the groove formed between the two.

  Hereinafter, an example of an embodiment of a cleaning tool according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description, a case where the keyboard is picked up as an object to be cleaned will be described. ,

Here, FIG. 1 (a) is a top perspective explanatory view of the cleaning tool according to the present invention, FIG. 1 (b) is a bottom perspective explanatory view of the cleaning tool according to the present invention, and FIG. 1 (c) is according to the present invention. It is explanatory drawing which shows the state which isolate | separated the cleaning tool into the case and the inner.

  2 (a), (b), (c), (d), and (e) show a procedure for attaching a rectangular nonwoven fabric as a wiping cloth for cleaning to the cleaning tool according to the present invention as shown in FIG. 2 (a) → FIG. 2 (b) → FIG. 2 (c) → FIG. 2 (d) → FIG. 2 (e) ”. FIG. 2 (a) shows an inner layer on the nonwoven fabric placed on the table. FIG. 2B is an explanatory view showing a state in which one corner of the nonwoven fabric is sandwiched in a notch portion formed in the inner, and FIG. FIG. 2 (c) is an explanatory diagram showing a state in which all four corners of the nonwoven fabric are sandwiched in the notch formed in the inner portion, and FIG. ) Is a bottom slant showing the state in which the inner with all four corners of the nonwoven fabric sandwiched in the notch is housed in the case. Is an explanatory view, FIG. 2 (e) is a top perspective view showing a state in which housing the inner sandwiching all four corners of the nonwoven fabric in the notch portion to the case.

  3 (a) and 3 (b) are explanatory views of the case, FIG. 3 (a) is a bottom explanatory view, and FIG. 3 (b) is a side view as viewed from the arrow A.

  4A, 4B, and 4C are explanatory views showing the upper member when the inner part of the cleaning tool according to the present invention is disassembled into an upper member and a lower member, and FIG. FIG. 4B is a bottom explanatory view, FIG. 4B is a side explanatory view of FIG. 4A, and FIG. 4C is a cross-sectional explanatory view taken along line CC in FIG.

  FIGS. 5A, 5B, and 5C are explanatory views showing the lower member when the inner part of the cleaning tool according to the present invention is disassembled into an upper member and a lower member, and FIG. FIG. 5 (b) is a top view, FIG. 5 (c) is a side view of FIG. 5 (a), and FIG. 5 (d) is a view of FIG. 5 (a). It is sectional explanatory drawing by the EE line.

  6 (a) and 6 (b) are enlarged explanatory views of the main part of the lower member of the inner, and FIG. FIG. 6B is a side explanatory view taken along the arrow G in FIG. 6A corresponding to FIG. 5C in the region shown in FIG.

  FIG. 7 is a cross-sectional explanatory view of the cleaning tool according to the present invention in a state where the inner is assembled to the case.

  In addition, the numerical value shown to each said figure shows an example of the dimension of the cleaning tool by this invention, the numerical value to which "R" is not added represents length, a unit is "mm", and "R" The numerical value with “” represents an angle and the unit is “°”.

The cleaning tool 10 according to the present invention includes a bowl-shaped case 12 in which a hollow sphere is divided in half, and an inner 14 having a substantially hemispherical shape.

  Further, the inner 14 includes a bowl-shaped upper member 16 in which a hollow sphere is divided in half, and a lower member 18 attached to the upper member 16 so as to close the circular opening end portion 16a of the upper member 16. It is comprised by.

Here, the case 12 is formed so as to include a substantially hemispherical recess 12 a having a size capable of accommodating a substantially hemispherical surface of the upper member 16 constituting the inner 14.

  Further, when the inner 14 is accommodated in the recess 12a, the circular opening end portion 12b of the case 12 engages with an edge 18aa (described later in detail) of the lower member 18 constituting the inner 14, and the case 12 is engaged. A protrusion 12 c is provided to prevent the inner 14 from falling off from 12.

  Four protrusions 12c are arranged at equal intervals so as to protrude from the circular opening end 12b toward the center of the circular shape.

  The case 14 may be formed of various materials. For example, a material having a hardness that does not deform when the operator holds the case 14 by hand, for example, a hard material such as an acrylic resin. It is preferably formed of synthetic resin, metal or wood.

Next, the inner 14 will be described. The inner 14 is configured by engaging the upper member 16 and the lower member 18 as described above.

Here, the upper member 16 has a bowl shape in which the entire hollow sphere is divided in half, and a lower member insertion portion 16b having a substantially cylindrical shape is erected from the central portion of the substantially hemispherical concave portion 16a. Has been.

  Furthermore, substantially cross-shaped notches 16d for sandwiching the nonwoven fabric are formed at four equal intervals around the edge adjacent to the circular opening end 16c of the upper member 16.

Further, the lower member 18 includes a blade group 20 that protrudes from the bottom surface 18b of the base portion 18a. Hereinafter, the blade group 20 will be described in detail.

  That is, on the bottom surface 18b of the base portion 18a of the lower member 18, a blade unit 24 is configured by using a plurality of blades 22 that are independently formed from the bottom surface 18b, and a blade group 20 is configured by using a plurality of blade units 24. is doing.

  Here, the blade 22 is flexible, and is formed so as to return to its original state when the load is removed by the elastic deformation action and the load 22 is removed. Referring to a), a columnar body shape having a teardrop shape, that is, a columnar body shape having a teardrop shape in cross section is provided.

  In the present specification, in the blade 22 having a teardrop shape, the side with a rounded tip is referred to as a front end 22a, and the side with a sharpened tip is referred to as a rear end 22b. And

In the blade unit 24, a blade row 26 composed of three blades 22 arranged in series so that the front end portion 22a and the rear end portion 22b face the same direction is formed in a cross shape at intervals of 90 degrees. 4 rows are arranged.

  That is, the blade unit 24 is composed of twelve blades 22, and the blade group 20 has a lattice pattern by the twelve blade units 24 described above in a bottom view (see FIG. 5A). The blade units 24 are continuously arranged so as to be formed.

Here, the protrusion length of the three blades 22 constituting the blade row 26 is the protrusion length L1 of the blade 22 closest to the center position O of the blade unit 24 (see FIG. 6A). The projection length L3 of the blade 22 positioned furthest from the projection length L1 is set to be shorter than the projection length L2 of the blade 22 positioned next to the projection length L1. .

  That is, the protruding length of each blade 22 is dimensioned so that the length of the blade 22 is stepped so that the blade 22 closest to the center position O has a relationship of “L1> L2> L3”. ing.

On the other hand, on the upper surface 18c of the base portion 18a of the lower member 18, a columnar portion 18d fitted into the lower member insertion portion 16b of the upper member 16 is formed so as to protrude.

  By fitting the cylindrical portion 18d into the lower member insertion portion 16b, the lower member 18 and the upper member 16 are fitted so as not to be easily separated.

The blade 22 is flexible and has a property of returning to its original state when the load is removed even if the load is deformed, for example, an elastomer, specifically a vulcanized rubber or a thermoset. It is preferable to form it with thermosetting elastomers such as curable resin-based elastomers or thermoplastic elastomers, and the strength is preferably about 50 to 70, for example.

  Further, the portions other than the blade 22 in the inner 14 may be formed of the same material as the blade 22, or may be formed of other materials, for example, hard or soft synthetic resin, metal, wood, or the like. .

  Note that the edge 18aa of the base 18a of the lower member 18 is preferably formed of an elastically deformable material so as to be engaged with the protrusion 12c formed on the circular opening end 12b of the case 14.

In the above configuration, when the keyboard is cleaned by the cleaning tool 10 according to the present invention described above, first, the inner 14 is removed from the case 12, and FIG. 2 (a) → FIG. 2 (b) → FIG. 2 (c) → The rectangular nonwoven fabric 100 is attached as a wiping cloth for cleaning by the procedure shown in FIG. 2 (d) → FIG. 2 (e).

  In addition, what can be used as a wiping cloth for cleaning is not restricted to a nonwoven fabric. That is, as a wiping cloth applicable to the cleaning tool 10 according to the present invention, various materials can be used as long as they are thin sheets or films.

That is, the inner 14 is placed on the nonwoven fabric 100 placed on the table 102 so that the nonwoven fabric 100 and the blade group 20 come into contact with each other, and one of the notches 16d formed in the upper member 16 of the inner 14 is provided. One corner of the nonwoven fabric 100 is sandwiched between the two (see FIG. 2A).

  Similarly, the remaining three corners of the nonwoven fabric 100 are respectively sandwiched between the cutout portions 16d (see FIG. 2B), and all four corner portions of the nonwoven fabric 100 are respectively inserted into the cutout portions 16d. (See FIG. 2 (c)).

  Next, the inner 14 is attached to the case 12 so that the substantially hemispherical surface of the upper member 16 of the inner 14 with all four corners of the nonwoven fabric sandwiched in the notch 16d is positioned in the recess 12a (FIG. 2 ( d) See (e)).

  When the inner 14 is attached to the case 12, the bottom surface 18b side of the edge 18aa of the base 18a of the lower member 18 is pressed by the protrusion 12c of the case 12, and thereby the inner 14 and the case 12 are engaged. The inner 14 is prevented from dropping from the case 12.

After attaching the nonwoven fabric 100 to the cleaning tool 10 as described above, the operator holds the case 12 by hand, abuts the nonwoven fabric 100 and the keyboard, and presses the cleaning tool 10 against the keyboard. Then, the cleaning tool 10 is scratched on the keyboard.

  8A and 8B, the nonwoven fabric 100 and the keyboard 200 are brought into contact with each other and the cleaning tool 10 is pressed against the keyboard 200 so that the cleaning tool 10 is scraped on the keyboard 200. FIG. 8A is a conceptual explanatory diagram showing the state of the blade 22 before the cleaning tool 10 is pressed against the keyboard 200. FIG. FIG. 8B is a conceptual explanatory diagram illustrating the state of the blade 22 when the cleaning tool 10 is pressed against the keyboard 200.

Referring to FIGS. 8A and 8B, according to the cleaning using the cleaning tool 10, the operator can set the key top 202 a of the key switch 202 constituting the keyboard 200 with respect to the keyboard 200. By rubbing the cleaning tool 10 so as to press it, each blade 22 having a columnar body shape with a teardrop-shaped cross section is elastically deformed in multiple directions, and the nonwoven fabric 100 is formed against the key top 202a. Since it comes in contact with a wide range, dust can be efficiently removed.

  Further, with respect to the side surface 202b of the key switch 202 and the groove portion 204 between the adjacent key switches 202, as shown in FIG. The blade 22 is bent by rubbing it so as to press the cleaning tool 10, and the blade 22 is bent in the groove portion 204 in a complicated manner, and stress is generated.

  As a result, the nonwoven fabric 100 can be efficiently pressed against the side surface 202b of the key switch 202 and the bottom portion 204a of the groove portion 204, and the side surface 202b efficiently removes dust in the groove portion 204 attached to the bottom portion 204a. can do.

Here, FIG. 9 shows a chart summarizing the experimental results by the inventor of the present application, but the cleaning tool 10 used for this experiment has the numerical dimensions described in FIGS. 3 to 7. Used.

  Further, as a keyboard to be experimented, a so-called desktop personal computer (desktop PC) keyboard having a deep groove between adjacent key switches (the depth of the groove to be tested was 11 mm). In addition, a so-called notebook personal computer (notebook PC) keyboard (the depth of the groove to be tested was 2 mm) having a shallow groove between adjacent key switches was used.

  And as dust which exists on these keyboards, the bread crumbs which simulated garbage and the water-based paint which simulated hand fats were used.

  Next, the outline of the experiment will be described. The bread crumbs are spread on the keyboard or the aqueous paint is applied, and the cleaning tool 10 to which the nonwoven fabric 100 is attached is moved in one direction on the keyboard to remove the bread crumbs or the aqueous paint. The state of this was visually confirmed to evaluate the cleaning state.

  That is, with respect to the amount of bread crumbs spread on the keyboard or the amount of water-based paint applied on the keyboard, the amount adhered to the nonwoven fabric 100 and the amount remaining on the keyboard are visually confirmed, and the case where it is completely removed is removed. An approximate removal rate was determined with a rate of 100%.

  In this experiment, the operation of moving the cleaning tool 10 once in one direction was counted as one operation, and the cleaning state was evaluated by performing three operations.

  As a result of such an experiment, as shown in the chart of FIG. 9, when the operation was performed three times, an almost perfect cleaning effect was observed.

  That is, due to the elasticity and flexibility of the blade 22 provided on the lower member 18 of the inner 14 in the cleaning tool 10, the non-woven fabric is fitted to the recesses and side surfaces of the key top in the key switch to effectively wipe off dust. In addition, the dust can be effectively swept out from the groove between the key switches.

In addition, when the nonwoven fabric same as the nonwoven fabric 100 attached to the cleaning tool 10 was hold | gripped by hand and the keyboard was cleaned only using the nonwoven fabric, the nonwoven fabric did not fully reach into the groove part between key switches, and the cleaning tool 10 was removed. Compared with the case of using, cleaning leakage in the groove between the key switches was conspicuous.

  Also, when the keyboard is cleaned by grasping the nonwoven fabric by hand, only the portion of the nonwoven fabric that is pressed by the hand is brought into contact with the keyboard with strong pressure, and the other portions of the nonwoven fabric are pressed with strong pressure against the keyboard. Since it was not contact | abutted, compared with the case where the cleaning tool 10 was used, the area which can be cleaned by one operation | movement was remarkably narrow.

  Further, when the keyboard is cleaned by gripping the nonwoven fabric by hand, the up and down movement of the key switch is directly transmitted to the hand, so that the nonwoven fabric is easily caught by the key switch and twisted.

  For this reason, when the nonwoven fabric is gripped by hand and the entire surface of the keyboard is cleaned, it is difficult and difficult to clean. However, when the nonwoven fabric is attached to the cleaning tool 10 and cleaned, the entire surface of the keyboard is cleaned. It was easy to clean in a short time.

  In addition, when the nonwoven fabric is directly gripped by hand, there is a problem that the dirt gets on the hand through the nonwoven fabric, but this is not the case when the cleaning tool 10 is used.

The above-described embodiment can be modified as shown in the following (1) to (8).

  (1) The upper member of the inner is not limited to the configuration described in the above embodiment, and for example, an upper member having the structure shown in FIGS. 10A, 10B, and 10C may be used. Good.

  When the upper member 16 described above is compared with the upper member 16 ′ shown in FIGS. 10A, 10B, and 10C, they are different only in that the upper member 16 ′ does not include the notch 16d. .

  In order to attach a non-woven fabric using the upper member 16 'as an inner member, the non-woven fabric is obtained by the procedure shown in FIG. 11 (a) → FIG. 11 (b) → FIG. 11 (c) → FIG. 11 (d) → FIG. 100 may be attached.

  That is, the inner is placed on the nonwoven fabric 100 placed on the table, and the hemispherical portion 16 ″ of the upper member 16 ′ of the inner is temporarily turned up.

  Then, after disposing the outer peripheral edge of the nonwoven fabric 100 between the hemispherical part 16 '' and the lower member, the turned up hemispherical part 16 '' is lowered, and the upper member 16 '' and the lower member A nonwoven fabric is sandwiched between them.

  (2) In the embodiment described above, the cutout shape of the substantially cross-shaped cutout portion 16d sandwiching the nonwoven fabric 100 is formed in a straight line, but it is needless to say that the present invention is not limited to this. For example, a part or all of the shape of the substantially cross-shaped cutout portion that sandwiches the nonwoven fabric 100 may be formed in a sawtooth shape. FIG. 12 shows an example in which a part of the shape of the substantially cross-shaped cutout portion sandwiching the nonwoven fabric 100 is a sawtooth shape 160d. 13 (a), (b), (c), and (d), there is a procedure for attaching the non-woven fabric 100 to the inner having a substantially cross-shaped cutout portion sandwiching the non-woven fabric 100 in a sawtooth shape 160d. What is necessary is just to attach the nonwoven fabric 100 in the procedure similar to above-described embodiment.

  (3) In the above-described embodiment, the case 12 and the inner 14 are formed in a bowl shape having a substantially hemispherical surface. However, the present invention is not limited to this. It may be provided, may be provided with a substantially polygonal surface, and can be configured in an arbitrary shape.

  (4) In the above-described embodiment, the materials of the case 12 and the inner 14 are shown. However, the materials shown above are merely examples, and any material may be used depending on the design.

  (5) In the above-described embodiment, the inner is divided into the upper member and the lower member. However, the present invention is not limited to this, and the upper member and the lower member may be integrally formed.

  (6) In the above-described embodiment, the blade 22 constitutes the three-step staircase blade row 26. However, the present invention is not limited to this. The number of stages may be two, or four or more.

  (7) In the above-described embodiment, the blade 22 has a columnar body shape with a teardrop-shaped cross section. However, the blade 22 is not limited to this. The surface may have various shapes such as a triangle, a quadrangle, a pentagon or more polygon, a circle, or an ellipse.

  (8) You may make it combine suitably the embodiment shown above and the modification shown in said (1) thru | or (7).

  INDUSTRIAL APPLICABILITY The present invention can be used for cleaning to remove dust on an object having an uneven surface, such as a keyboard of various devices such as a personal computer or a word processor, or a remote control or switch panel of various products.

DESCRIPTION OF SYMBOLS 10 Cleaning tool 12 Case 14 Inner 16 Upper member 18 Lower member 20 Blade group 22 Blade 24 Blade unit 26 Blade row 100 Nonwoven fabric 200 Keyboard 202 Key switch 204 Groove

Claims (3)

In cleaning tools that remove dust on objects,
A plurality of blades that are flexible on the surface arranged opposite to the object and project in a stepped manner to return to their original state when the load is removed by the elastic deformation action when the load is removed Formed,
A cleaning tool comprising an attachment mechanism for attaching a wiping cloth so as to cover the blade. The cleaning tool according to claim 1,
The blade has a columnar body shape having a teardrop shape. The cleaning tool according to any one of claims 1 and 2,
The blade has three front ends arranged in series such that the front end of the teardrop-shaped tip is rounded and the rear end of the tip is sharply stretched in the same direction. A cleaning tool comprising units arranged by arranging four rows of blades in a cross shape at intervals of 90 degrees so as to form a lattice pattern.

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