Cleaning tools

Abstract

To provide a cleaning tool that can effectively clean recessed areas. [Solution] The free ends 52 of each divided support 50 are made flexible toward the axis 40a of the support 40 and toward the axis 40a, respectively, and the cleaning body 20 is made flexible to expand and contract according to the size of the support 40. As a result, when inserting the tip of the cleaning tool 10 (the part corresponding to the free end 52 of each divided support 50 when the cleaning body 20 is attached to the support 40) into a recess to clean the inner surface of the recess, the tip of the cleaning tool 10 (more specifically, the shape near the closing portion 22 of the cleaning body 20) can be deformed according to the size of the recess in the radial and depth directions, as well as the shape of the inner surface of the recess.

Description

Technical Field

[0001] The present invention relates to cleaning tools.

Background Art

[0002] Conventionally, techniques related to brush cores are known (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the brush core of Patent Document 1 cannot clean the concave portion well.

[0005] Therefore, an object of the present invention is to provide a cleaning tool that can clean the concave portion well.

Means for Solving the Problems

[0006] To solve the above problems, the invention of claim 1 is a cleaning tool for cleaning the inner surface of a recess, comprising: a cleaning body which is a cylindrical body extending in one direction and has an opening formed at one end and a closed portion formed at the other end; a support portion which is insertable into the cleaning body and supports the cleaning body in contact with the inner surface of the cleaning body; and a handle portion connected to the support portion, wherein the cleaning body is expandable and contractible according to the size of the support portion, and the support portion comprises a base portion which is connected to the handle portion, and each of the support portions which are arranged along the outer circumference of the base portion and from the base portion to the support portion The support has a plurality of segmented supports extending along the axial direction of the support, each segmented support being cantilevered with the base side as a fixed end, and the free end of each segmented support being flexible in the direction toward the axial direction of the support and away from the axial direction, and when the support is inserted into the cleaning body, the cleaning body is supported by the support along the axial direction, and the portion of the inner surface of the cleaning body that is in contact with the outer circumferential surface of each segmented support receives radial forces from each segmented support that extend radially from the axial direction of the support.

[0007] Furthermore, the invention of claim 2 is characterized in that, in the cleaning tool described in claim 1, at least one of the outer surfaces of each divided support is curved.

[0008] Furthermore, the invention of claim 3 is characterized in that, in the cleaning tool described in claim 1, at least one of the outer surfaces of each divided support is planar.

[0009] Furthermore, the invention of claim 4 is characterized in that, in the cleaning tool described in any one of claims 1 to 3, each of the plurality of divided support members is arranged at equal intervals along the outer circumference of the base.

[0010] Furthermore, the invention of claim 5 is a cleaning tool for cleaning the inner surface of a recess, comprising: a cleaning body which is a cylindrical body extending in one direction and has an opening formed at one end and a closed portion formed at the other end; a support portion which is insertable into the cleaning body and supports the cleaning body in contact with the inner surface of the cleaning body; and a handle portion connected to the support portion, wherein the cleaning body is expandable and contractible according to the size of the support portion, the support portion has a base portion which is connected to the handle portion, and a cylindrical support portion which is connected to the base portion, and the support portion has a plurality of slit holes which extend along the axial direction of the support portion, and the support The body is divided by the plurality of slit holes into a plurality of segmented supports extending from the base along the axial direction, each segmented support being cantilevered with the base side as the fixed end, and the free end of each segmented support being flexible in the direction toward the axial side of the support and away from the axial side, and when the support is inserted into the cleaning body, the cleaning body is supported by the support along the axial direction, and the portion of the inner surface of the cleaning body that is in contact with the outer circumferential surface of each segmented support receives radial forces extending radially from the axial center of the support.

[0011] Furthermore, the invention of claim 6 is a cleaning tool for cleaning the inner surface of a recess, comprising: a cleaning body which is a cylindrical body extending in one direction and has an opening formed at one end and a closed portion formed at the other end; a support portion which is insertable into the cleaning body and supports the cleaning body in contact with the inner surface of the cleaning body; and a handle portion connected to the support portion, wherein the cleaning body is expandable and contractible according to the size of the support portion, the support portion has a base portion which is connected to the handle portion, and a support body which is connected to the base portion and has an n-sided cylindrical shape (where n is a natural number of 4 or more), and in the portion corresponding to the sides of two adjacent sides of the n sides of the support body, along the axial direction of the support portion A slit hole extending in the direction of the support is formed, and the support is divided into a plurality of segmented support members extending from the base along the axial direction by the n slit holes, each segmented support member is cantilevered with the base side as the fixed end, and the free end of each segmented support member is flexible in the direction toward the axial direction of the support and away from the axial direction, and when the support is inserted into the cleaning body, the cleaning body is supported by the support in the direction of the axial direction, and the portion of the inner surface of the cleaning body that is in contact with the outer surface of each segmented support member receives a radial force extending radially from the axial direction of the support.

[0012] Furthermore, the invention of claim 7 is characterized in that, in the cleaning tool described in claim 5 or claim 6, each of the plurality of divided support members is arranged at equal intervals along the outer circumference of the support member.

[0013] Furthermore, the invention of claim 8 is characterized in that, in the cleaning tool described in any one of claims 1 to 3, the cleaning body is formed from a knitted fabric using microfiber yarn. [Effects of the Invention]

[0014] According to the invention described in claims 1 to 8, the free end of each segmented support is flexible toward the axis of the support and toward the axis, respectively, and the cleaning body is expandable and contractible according to the size of the support. As a result, when inserting the tip of the cleaning tool (the portion corresponding to the free end of each segmented support when the cleaning body is attached to the support) into a recess to clean the inner surface of the recess, the tip of the cleaning tool (more specifically, the shape near the closing portion of the cleaning body) can be deformed according to the radial and depth size of the recess, as well as the inner surface shape of the recess. Therefore, recesses of various sizes and inner surface shapes can be cleaned without replacing either the support or the cleaning body.

[0015] Furthermore, according to the invention described in claims 1 to 8, when the support portion is inserted into the cleaning body, the portion of the inner surface of the cleaning body that is in contact with the outer surface of each divided support is subjected to a radial force extending radially from the axis of the support from each divided support. Therefore, it is possible to prevent the cleaning body from falling out of the support portion. [Brief explanation of the drawing]

[0016] [Figure 1] This is a perspective view showing an example of the configuration of a cleaning tool in the first embodiment of the present invention. [Figure 2] This is a perspective view showing an example of the configuration of a cleaning tool in the first embodiment of the present invention. [Figure 3] This is a diagram illustrating the target areas of cleaning equipment. [Figure 4] This is a cross-sectional view showing an example of the configuration of a cleaning tool in the first embodiment of the present invention. [Figure 5] This is a perspective view showing an example of the configuration of the support portion and the handle portion in the first embodiment of the present invention. [Figure 6] This is a perspective view showing an example of the configuration of the support portion and the handle portion in the first embodiment of the present invention. [Figure 7] This is a front view showing an example of the configuration of the support portion and the handle portion in the first embodiment of the present invention. [Figure 8]It is a right side view showing an example of the configuration of the support part and the handle part in the first embodiment of the present invention. [Figure 9] It is a plan view showing an example of the configuration of the support part and the handle part in the first embodiment of the present invention. [Figure 10] It is a bottom view showing an example of the configuration of the support part and the handle part in the first embodiment of the present invention. [Figure 11] It is a perspective view showing an example of the configuration of the cleaning tool in the second embodiment of the present invention. [Figure 12] It is a front view showing an example of the configuration of the support part and the handle part in the second embodiment of the present invention. [Figure 13] It is a right side view showing an example of the configuration of the support part and the handle part in the second embodiment of the present invention. [Figure 14] It is a plan view showing an example of the configuration of the support part and the handle part in the second embodiment of the present invention. [Figure 15] It is a bottom view showing an example of the configuration of the support part and the handle part in the second embodiment of the present invention. [Figure 16] It is a perspective view showing an example of the configuration of the cleaning tool in the third embodiment of the present invention. [Figure 17] It is a front view showing an example of the configuration of the support part and the handle part in the third embodiment of the present invention. [Figure 18] It is a right side view showing an example of the configuration of the support part and the handle part in the third embodiment of the present invention. [Figure 19] It is a plan view showing an example of the configuration of the support part and the handle part in the third embodiment of the present invention. [Figure 20] It is a bottom view showing an example of the configuration of the support part and the handle part in the third embodiment of the present invention. [Figure 21] It is a perspective view showing an example of the configuration of the cleaning tool in the fourth embodiment of the present invention. [Figure 22] It is a front view showing an example of the configuration of the support part and the handle part in the fourth embodiment of the present invention. [Figure 23]This is a right side view showing an example of the configuration of the support portion and the handle portion in the fourth embodiment of the present invention. [Figure 24] This is a plan view showing an example of the configuration of the support portion and the handle portion in the fourth embodiment of the present invention. [Figure 25] This is a bottom view showing an example of the configuration of the support portion and the handle portion in the fourth embodiment of the present invention. [Figure 26] This is a cross-sectional view showing another example of the configuration of the cleaning tool in the first embodiment of the present invention. [Modes for carrying out the invention]

[0017] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0018] <1. First Embodiment> <1.1. Composition of Cleaning Tools> Figures 1 and 2 are perspective views showing an example of the configuration of the cleaning tool 10. Figure 3 is a diagram illustrating the object to be cleaned by the cleaning tool 10. Figure 4 is a cross-sectional view showing an example of the configuration of the cleaning tool 10.

[0019] In this first embodiment of the present invention, the cleaning tool 10 is used to clean the inner surface of a recess, for example, a hole 8 for a nut 7 provided in a passenger car wheel 5, as shown in Figure 3. That is, the cleaning tool 10 can clean the inner wall surface of the hole 8 and the head of the nut 7. As shown in Figures 1, 2, and 4, the cleaning tool 10 mainly comprises a cleaning body 20, a support part 40, and a handle part 70.

[0020] As shown in Figure 4, the cleaning body 20 is a cylindrical body that extends in one direction (extension direction AR1). As shown in Figure 4, an opening 21 is formed at one end 20a of the cleaning body 20, and a closed portion 22 is formed at the other end 20b.

[0021] Furthermore, as shown in Figure 4, the cleaning body 20 is bag-shaped before the support part 40 is inserted. In addition, the cleaning body 20 is formed from a knitted fabric using microfiber yarn and is expandable and contractible according to the size of the support part 40.

[0022] Here, the microfiber yarn contains at least polyester, more specifically, 70-100% by weight of polyester and 0-30% by weight of nylon. The thickness of the microfiber yarn is preferably 3-8 μm (more preferably 5-8 μm). Furthermore, the knitted fabric may be knitted using circular knitting, weft knitting, or warp knitting.

[0023] As shown in Figure 4, the support portion 40 is insertable into the cleaning body 20 and supports the cleaning body 20 while in contact with the inner surface 25 of the cleaning body 20. The detailed configuration of the support portion 40 will be described later.

[0024] The handle portion 70 is the element that the user of the cleaning tool 10 (hereinafter simply referred to as "user") holds. In other words, the handle portion 70 is used as the user's gripping part. As shown in Figures 1, 2, and 4, the handle portion 70 is formed from an elliptical plate and is connected to the support portion 40. The handle portion 70 is also provided with a through hole that penetrates in a direction intersecting the extension direction AR1.

[0025] Here, the support portion 40 and the handle portion 70 may be made of polypropylene, ABS resin, polyethylene, nylon, or polycarbonate. Furthermore, the support portion 40 and the handle portion 70 may be integrally constructed or constructed as separate parts.

[0026] <1.2. Support Structure> Figures 5 and 6 are perspective views showing an example of the configuration of the support portion 40 and the handle portion 70, respectively. Figures 7 through 10 are front view, right side view, top view, and bottom view, respectively, showing an example of the configuration of the support portion 40 and the handle portion 70. Here, the rear view and left side view are identical to the front view and right side view, respectively.

[0027] As shown in Figures 5 to 10, the support portion 40 mainly comprises a base portion 41 and a support body 43.

[0028] As shown in Figures 5 to 8, the base 41 is connected to the handle 70 and the support 43, respectively. That is, the base 41 is connected to the support 43 at a position opposite the handle 70, with the base 41 in between. This support 43 is formed from a plurality (eight in this embodiment) of segmented support 50.

[0029] In other words, the support 43 has a plurality of (eight in this embodiment) slit holes 45 extending along the axial direction AR2 of the support portion 40, and the support 43 is divided into a plurality of segmented support 50 extending from the base portion 41 along the axial direction AR2 by the plurality of slit holes 45.

[0030] Furthermore, since the support 43 is cylindrical, the outer surface 55 of each divided support 50 is curved. In addition, each divided support 50 is arranged at equal intervals along the outer circumference 42 of the base 41 and extends from the base 41 along the axial direction AR2 of the support 40. In other words, it can be said that each of the multiple divided support 50 is arranged at equal intervals along the outer circumference of the support 43.

[0031] Each divided support 50 is cantilevered with its base 41 side as the fixed end 51, and the free end 52 of each divided support 50 is flexible in both directions: toward the axis 40a of the support 40 (in the direction approaching the axis 40a) and away from the axis 40a.

[0032] Furthermore, as shown in Figures 5 to 8 and Figure 10, the shape of each segmented support 50 is tapered. That is, if the length along the direction perpendicular to the axial direction AR2 on the outer surface 55 of each segmented support 50 is defined as the outer circumference length, this outer circumference length decreases as it moves away from the base 41.

[0033] Then, as shown in Figure 4, when the support portion 40 is inserted into the cleaning body 20, the cleaning body 20 is supported by the support portion 40 along the axial direction AR2, while the inner surface 25 of the cleaning body 20 receives a force from the divided support 50 in the radial direction AR3, which extends radially from the axis 40a of the support portion 40. In other words, the cleaning body 20 is expandable and contractible in, for example, the axial direction AR2 and / or the radial direction AR3, depending on the size of the support portion 40.

[0034] Here, the size of each slit hole 45 and the shape of each segmented support 50 are set according to the interference conditions and deflection strength (or bending strength) of each segmented support 50. In other words, the shape of each segmented support 50 is not limited to a tapered shape. Furthermore, when the cleaning body 20 is attached to the support part 40 and is not inserted into the recess, the cleaning body 20 is assumed to be subjected to a force AR3 in the radial direction from the segmented support 50.

[0035] <1.3. Advantages of the cleaning tool of the first embodiment> As described above, in the cleaning tool 10 of the first embodiment, the free end 52 of each divided support 50 is flexible both toward the axis 40a of the support 40 and in the direction away from the axis 40a, and the cleaning body 20 is expandable and contractible according to the size of the support 40. As a result, when inserting the tip 10a of the cleaning tool 10 (the part corresponding to the free end 52 of each divided support 50 of the cleaning body 20 when it is attached to the support 40: see Figures 1 and 2) into a recess (for example, a hole 8 in a wheel 5: see Figure 3) to clean the inner surface of the recess, the tip 10a of the cleaning tool 10 (more specifically, the shape near the closing portion 22 of the cleaning body 20) can be deformed according to the radial and depth size of the recess, as well as the inner surface shape of the recess. Therefore, recesses of various sizes and inner surface shapes can be cleaned without replacing either the support 40 or the cleaning body 20.

[0036] Furthermore, in the cleaning tool 10 of the first embodiment, when the support portion 40 is inserted into the cleaning body 20, the portion of the inner surface 25 of the cleaning body 20 that is in contact with the outer surface 55 of each divided support 50 receives a force from each divided support 50 in the radial direction AR3 that extends radially from the axis 40a of the support portion 40. Therefore, it is possible to prevent the cleaning body 20 from falling off the support portion 40.

[0037] <2. Second Embodiment> Next, a second embodiment of the present invention will be described. The cleaning tools 10 and 110 of the first and second embodiments have similar configurations, except that the corresponding handle portions 70 and 170 are configured differently. In other words, the following description will focus on these differences.

[0038] In addition, similar components in cleaning tools 10 and 110 are given the same reference numerals, and these components with the same reference numerals have already been described in the first embodiment. Therefore, their description will be omitted in this embodiment.

[0039] <2.1. Composition of Cleaning Tools> Figures 11 to 15 are perspective views, front views, right side views, top views, and bottom views, respectively, showing an example of the configuration of the support portion 40 and the handle portion 170. Here, the rear view and left side view are identical to the front view and right side view, respectively.

[0040] As shown in Figures 11 to 15, the cleaning tool 110 comprises a cleaning body (not shown), a support part 40, and a handle part 170.

[0041] The handle portion 170, like the handle portion 70 in the first embodiment, is an element that serves as the user's grip. That is, the handle portion 170 is used as the user's gripping portion. As shown in Figures 11 and 12, the handle portion 170 is a rod-shaped body extending in the axial direction AR2 and is connected to the support portion 40. The handle portion 170 is also provided with a through hole that penetrates in a direction intersecting the axial direction AR2.

[0042] Here, the handle portion 170 may be made of the same material as the support portion 40 and handle portion 70 in the first embodiment. Also, the support portion 40 and the handle portion 170 may be integrally constructed or as separate components.

[0043] <2.2. Advantages of the cleaning tool of the second embodiment> As described above, the cleaning tool 110 of the second embodiment, like the cleaning tool 10 of the first embodiment, can clean recesses of various sizes and inner shapes without replacing either the support part 40 or the cleaning body 20. Furthermore, the cleaning tool 110 of the second embodiment, like the cleaning tool 10 of the first embodiment, can prevent the cleaning body 20 from falling off the support part 40.

[0044] <3. Third Embodiment> Next, a third embodiment of the present invention will be described. The cleaning tools 10 and 210 of the first and third embodiments have similar configurations, except that the configurations of the corresponding support parts 40 and 240 differ. Therefore, the following description will focus on these differences.

[0045] Note that similar components in cleaning tools 10 and 210 are denoted by the same reference numerals, and these components with the same reference numerals have already been described in the first embodiment. Therefore, their description will be omitted in this embodiment.

[0046] <3.1. Composition of Cleaning Tools> Figures 16 to 20 are perspective views, front views, right side views, top views, and bottom views, respectively, showing an example of the configuration of the support portion 240 and the handle portion 270. Here, the rear view and left side view are identical to the front view and right side view, respectively.

[0047] As shown in Figures 16 to 20, the cleaning tool 210 comprises a cleaning body (not shown), a support part 240, and a handle part 270.

[0048] The support portion 240, like the support portion 40 in the first embodiment, is insertable into the cleaning body 20 and supports the cleaning body 20 in contact with the inner surface 25 of the cleaning body 20. The detailed configuration of the support portion 240 will be described later.

[0049] The handle portion 270, like the handle portion 70 in the first embodiment, is an element that serves as the user's grip. That is, the handle portion 270 is used as the user's gripping portion. As shown in Figures 16 and 17, the handle portion 270 is a rod-shaped body extending in the axial direction AR2 and is connected to the support portion 240. The handle portion 270 is also provided with a through hole that penetrates in a direction intersecting the axial direction AR2.

[0050] Here, the support portion 240 and the handle portion 270 may be made of the same material as the support portion 40 and the handle portion 70 in the first embodiment. Also, the support portion 240 and the handle portion 270 may be integrally constructed or as separate components.

[0051] <3.2. Support Structure> As shown in Figures 16 to 20, the support portion 240 has a base portion 241 that connects to the handle portion 270, and an octagonal cylindrical support portion 243 that is connected to the base portion 241. That is, as shown in Figures 16 to 18, the base portion 241 is connected to the support portion 243 at a position opposite the handle portion 270, with the base portion 241 in between. This support portion 243 is formed by a plurality (eight in this embodiment) of segmented support portions 250.

[0052] In other words, the support 243 has a plurality of (eight in this embodiment) slit holes 245 that extend along the axial direction AR2 of the support portion 240, and the support 243 is divided into a plurality of segmented support 250 that extend from the base portion 241 along the axial direction AR2 by the plurality of slit holes 245.

[0053] To put it another way, of the eight outer peripheral surfaces 255 (side surfaces) of the support 243, slit holes 245 extending along the axial direction AR2 of the support portion 240 are formed in the portions corresponding to the sides 244 of two adjacent outer peripheral surfaces (i.e., the portions where the sides are extended). The support portion 240 is divided into multiple segmented support portions 250 extending from the base portion 241 along the axial direction AR2 by the eight slit holes 245. In other words, the number of segments of the support 243 is "8".

[0054] Furthermore, since the support 243 is octagonal tubular in shape, the outer surface 255 of each segmented support 250 is planar. In addition, each segmented support 250 is arranged at equal intervals along the outer circumference of the base 241 and extends from the base 241 along the axial direction AR2 of the support 240. In other words, it can be said that each of the multiple segmented support 250 is arranged at equal intervals along the outer circumference of the support 243.

[0055] Each divided support 250 is cantilevered with its base 241 side as the fixed end 251, and the free end 252 of each divided support 250 is flexible both toward the axis 240a of the support 240 and in the direction away from the axis 240a.

[0056] Furthermore, as shown in Figures 16 to 18, the shape of each segmented support 250 is tapered. That is, if the length along the direction perpendicular to the axial direction AR2 on the outer surface 255 of each segmented support 250 is defined as the outer circumference length, this outer circumference length decreases as it moves away from the base 241.

[0057] When the support portion 240 is inserted into the cleaning body, the cleaning body is supported by the support portion 240 along the axial direction AR2, and the inner surface of the cleaning body receives a force from the divided support 250 in the radial direction AR3, which extends radially from the axis 240a of the support portion 240.

[0058] Here, the size of each slit hole 245 and the shape of each segmented support 250 are set according to the interference conditions and bending strength of each segmented support 250. In other words, the shape of each segmented support 250 is not limited to a tapered shape.

[0059] <3.3. Advantages of the cleaning tool of the third embodiment> As described above, in the cleaning tool 210 of the third embodiment, the free end 252 of each divided support 250 is made flexible toward the axis 240a of the support 240 and toward the direction away from the axis 240a, and the cleaning body is made expandable and contractible according to the size of the support 240. As a result, when inserting the tip of the cleaning tool 210 (the part corresponding to the free end 252 of each divided support 250 when the cleaning body is attached to the support 240) into a recess (for example, hole 8 of the wheel 5: see Figure 3) to clean the inner surface of the recess, the tip of the cleaning tool 110 (more specifically, the shape near the closing part of the cleaning body) can be deformed according to the size of the recess in the radial and depth directions, as well as the shape of the inner surface of the recess. Therefore, recesses of various sizes and inner surface shapes can be cleaned without replacing either the support 240 or the cleaning body.

[0060] Furthermore, in the cleaning tool 210 of the third embodiment, when the support portion 240 is inserted into the cleaning body, the portion of the inner surface of the cleaning body that is in contact with the outer peripheral surface 255 of each divided support 250 receives a force from each divided support 250 in the radial direction AR3 that extends radially from the axis 240a of the support portion 240. Therefore, it is possible to prevent the cleaning body from falling out of the support portion 240.

[0061] <4. Fourth Embodiment> Next, a fourth embodiment of the present invention will be described. The cleaning tools 210 and 310 of the third and fourth embodiments have similar configurations, except that the number of divisions of the corresponding supports 243 and 343 differs. Therefore, the following description will focus on this difference.

[0062] In addition, similar components in cleaning tools 210 and 310 are given the same reference numerals, and these components with the same reference numerals have already been described in the first embodiment. Therefore, their description will be omitted in this embodiment.

[0063] <4.1. Composition of Cleaning Tools> Figures 21 to 25 are perspective views, front views, right side views, top views, and bottom views, respectively, showing an example of the configuration of the support portion 340 and the handle portion 270. Here, the rear view and left side view are identical to the front view and right side view, respectively.

[0064] As shown in Figures 21 to 25, the cleaning tool 310 comprises a cleaning body (not shown), a support part 340, and a handle part 270.

[0065] The support portion 340, like the support portion 40 in the first embodiment, is insertable into the cleaning body 20 and supports the cleaning body 20 in contact with the inner surface 25 of the cleaning body 20. The detailed configuration of the support portion 340 will be described later.

[0066] Here, the support portion 340 may be made of the same material as the support portion 40 and handle portion 70 in the first embodiment. Also, the support portion 340 and the handle portion 270 may be integrally constructed or constructed as separate parts.

[0067] <4.2. Support Structure> As shown in Figures 21 to 25, the support portion 340 has a base portion 341 that connects to the handle portion 270, and a hexagonal cylindrical support 343 that is connected to the base portion 341. That is, as shown in Figures 21 to 23, the base portion 341 is connected to the support 343 at a position opposite the handle portion 270, with the base portion 341 in between. This support 343 is formed by a plurality (six in this embodiment) of segmented support 350s.

[0068] In other words, the support 343 has a plurality (six in this embodiment) of slit holes 345 that extend along the axial direction AR2 of the support portion 340, and the support 343 is divided into a plurality of segmented support 350 that extend from the base portion 341 along the axial direction AR2 by the plurality of slit holes 345.

[0069] To put it another way, of the six outer peripheral surfaces 355 (side surfaces) of the support 343, slit holes 345 extending along the axial direction AR2 of the support portion 340 are formed in the portions corresponding to the side edges 344 of two adjacent outer peripheral surfaces (i.e., the portions where the side edges are extended). The support portion 340 is divided into multiple segmented support portions 350 extending from the base portion 341 along the axial direction AR2 by the six slit holes 345. In other words, the number of segments of the support 343 is "6".

[0070] Furthermore, since the support 343 is hexagonal tubular in shape, the outer circumferential surface 355 of each segmented support 350 is planar. In addition, each segmented support 350 is arranged at equal intervals along the outer circumference of the base 341 and extends from the base 341 along the axial direction AR2 of the support 340. In other words, it can be said that each of the multiple segmented support 350 is arranged at equal intervals along the outer circumference of the support 343.

[0071] Each divided support 350 is cantilevered with its base 341 side as the fixed end 351, and the free end 352 of each divided support 350 is flexible both toward the axis 340a of the support 340 and in the direction away from the axis 340a.

[0072] Furthermore, as shown in Figures 21 to 23, the shape of each segmented support 350 is tapered. That is, if the length along the direction perpendicular to the axial direction AR2 on the outer surface 355 of each segmented support 350 is defined as the outer circumference length, this outer circumference length decreases as it moves away from the base 341.

[0073] When the support portion 340 is inserted into the cleaning body, the cleaning body is supported by the support portion 340 along the axial direction AR2, and the inner surface of the cleaning body receives a force from the divided support 350 in the radial direction AR3, which extends radially from the axis 340a of the support portion 340.

[0074] Here, the size of each slit hole 345 and the shape of each segmented support 350 are set according to the interference conditions and bending strength of each segmented support 350. In other words, the shape of each segmented support 350 is not limited to a tapered shape.

[0075] <4.3. Advantages of the cleaning tool of the fourth embodiment> As described above, the cleaning tool 310 of the fourth embodiment, like the cleaning tool 210 of the third embodiment, can clean recesses of various sizes and inner shapes without replacing either the support part 340 or the cleaning body. Furthermore, the cleaning tool 310 of the fourth embodiment, like the cleaning tool 210 of the third embodiment, can prevent the cleaning body from falling off the support part 340.

[0076] <5. Variation> Although embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various modifications are possible.

[0077] (1) In the first embodiment, the cleaning body 20 was described as being made of knitted fabric, but the cleaning body 20 is not limited to this. The cleaning body 20 may be made of woven fabric as long as it is expandable and contractible according to the size of the support part 40.

[0078] (2) In the first and second embodiments, the number of divisions of the support 43 was assumed to be "8", in the third embodiment, the number of divisions of the support 243 was assumed to be "8", and in the fourth embodiment, the number of divisions of the support 343 was assumed to be "6", but the number of divisions of the support is not limited to these.

[0079] For example, if the support is in the shape of an n-square tube, that is, (i) Of the n sides of the support, slit holes extending along the axial direction of the support are formed on the side portions of two adjacent sides. (ii) When the support is divided into a plurality of segmented support members extending axially from the base by n slit holes, the value of n may preferably be a natural number of 4 or more (more preferably a natural number of 6 or more and 12 or less).

[0080] Similarly, if the support is cylindrical, the number of divisions may preferably be a natural number of 4 or more (more preferably a natural number between 6 and 12).

[0081] (3) In the first and second embodiments, the support portion 40 is a cylindrical body and the outer circumferential surfaces 55 of each divided support 50 are all curved. In the third and fourth embodiments, the support portions 240 and 340 are each rectangular tubes and the outer circumferential surfaces 255 and 355 of each divided support 250 and 350 are all planar. However, the shape of the outer circumferential surfaces is not limited to these. The outer circumferential surfaces of each divided support included in the support may be a mixture of curved and planar surfaces.

[0082] (4) In the first embodiment, the shape of the handle portion 70 was described as a plate, and in the second to fourth embodiments, the shape of the handle portion was described as a rod, but it is not limited to these. Any shape that allows the user to grip it well is sufficient.

[0083] (5) In the first embodiment, the cleaning body 20 before insertion is in the shape of a bag, and when the support part 40 is inserted into the cleaning body 20, the closing part 22 of the cleaning body 20 corresponds to the bottom of the bag before insertion, as shown in Figure 4. However, the method of inserting the cleaning body 20 is not limited to this.

[0084] Figure 26 is a cross-sectional view showing another example of the configuration of the cleaning tool in the first embodiment of the present invention. As shown in Figure 26, after the support portion 40 is inserted into the cleaning body 20, the bottom of the bag of the cleaning body 20 is folded back and stored in the space (inner space) surrounded by the plurality of divided support members 50, and a lid portion 27 made of urethane foam or the like may be placed on the other end 20b. That is, a closing portion 22 is formed at the other end 20b by the lid portion 27.

[0085] This allows the cleaning body 20 positioned inside the interior to clean the head of the nut 7, and the cleaning body 20 positioned outside the support portion 40 to clean the inner wall surface of the hole 8 simultaneously and effectively.

[0086] In this case, the flexibility of each segmented support 50 allows nut heads of various sizes to be inserted into the space surrounded by the multiple segmented support 50 for cleaning.

[0087] Furthermore, when a part of the cleaning body 20 is folded into the space surrounded by multiple divided support members 50, Of the inner surface 25 of the cleaning body 20, the portion 26 that contacts the outer surface of each divided support is the portion that receives a force from each divided support 50 in the radial direction AR3 (see Figures 10, 15, 20, and 25) that extends radially from the axis 40a of the support portion 40. (6) In the first to fourth embodiments, the microfiber yarn has been described as including, but is not limited to, polyester and / or nylon. For example, the microfiber yarn may include at least one of polyester yarn, nylon yarn, cotton yarn, acrylic yarn, and rayon yarn. [Explanation of symbols]

[0088] 10, 110, 210, 310 Cleaning tools 20 Cleaning Units 20a one end 20b Other end 21 Aperture 22 Occlusion 25 Inner self 26 parts Support Departments 40, 240, and 340 40a, 240a, 340a shafts 41, 241, 341 Base 42 Periphery 43, 243, 343 Support bodies 45, 245, 345 スリットhole 50, 250, 350 segmented support bodies 51, 251, 351 Fixed end 52, 252, 352 Free Ends 55, 255, 355 outer perimeter 70, 170, 270 handles 244, 344 Side door 244 (noun) AR1 extension direction AR2 Axial Direction AR3 radiation direction

Claims

1. A cleaning tool for cleaning the inner surface of a recess, (a) A cleaning body which is a cylindrical body extending in one direction, with an opening formed at one end and a closed portion formed at the other end, (b) A support portion which is insertable into the cleaning body and supports the cleaning body in contact with the inner surface of the cleaning body, (c) The handle portion connected to the support portion, Equipped with, The cleaning body is expandable and contractible according to the size of the support portion. The aforementioned support portion is (b-1) A base portion that connects to the handle portion, (b-2) Each of the multiple segmented supports is arranged along the outer circumference of the base and extends from the base along the axial direction of the support, It has, Each divided support is cantilevered with the base side as the fixed end, The free end of each segmented support is flexible in the direction toward the axis of the support and in the direction away from the axis. When the support portion is inserted into the cleaning body, The cleaning body is supported by the support portion along the axial direction, A cleaning tool characterized in that the portion of the inner surface of the cleaning body that is in contact with the outer surface of each divided support receives a radial force extending radially from the axis of the support portion from each divided support.

2. In the cleaning tool described in claim 1, A cleaning tool characterized in that at least one of the outer surfaces of each divided support is curved.

3. In the cleaning tool described in claim 1, A cleaning tool characterized in that at least one of the outer surfaces of each divided support is flat.

4. In a cleaning tool according to any one of claims 1 to 3, A cleaning tool characterized in that each of the plurality of divided supports is arranged at equal intervals along the outer circumference of the base.

5. A cleaning tool for cleaning the inner surface of a recess, (a) A cleaning body which is a cylindrical body extending in one direction, with an opening formed at one end and a closed portion formed at the other end, (b) A support portion which is insertable into the cleaning body and supports the cleaning body in contact with the inner surface of the cleaning body, (c) The handle portion connected to the support portion, Equipped with, The cleaning body is expandable and contractible according to the size of the support portion. The aforementioned support portion is (b-1) A base portion that connects to the handle portion, (b-2) A cylindrical support connected to the base, It has, The support has a plurality of slit holes formed therein that extend along the axial direction of the support portion. The support is divided by the plurality of slit holes into a plurality of segmented support members that extend from the base along the axial direction, Each divided support is cantilevered with the base side as the fixed end, The free end of each segmented support is flexible in the direction toward the axis of the support and in the direction away from the axis. When the support portion is inserted into the cleaning body, The cleaning body is supported by the support portion along the axial direction, A cleaning tool characterized in that the portion of the inner surface of the cleaning body that is in contact with the outer surface of each divided support receives a radial force extending radially from the axis of the support portion from each divided support.

6. A cleaning tool for cleaning the inner surface of a recess, (a) A cleaning body which is a cylindrical body extending in one direction, with an opening formed at one end and a closed portion formed at the other end, (b) A support portion which is insertable into the cleaning body and supports the cleaning body in contact with the inner surface of the cleaning body, (c) The handle portion connected to the support portion, Equipped with, The cleaning body is expandable and contractible according to the size of the support portion. The aforementioned support portion is (b-1) A base portion that connects to the handle portion, (b-2) A support connected to the base, which is in the shape of an n-square tube (where n is a natural number of 4 or more), It has, In the portion of the n side surfaces of the support that corresponds to the sides of two adjacent side surfaces, a slit hole extending along the axial direction of the support is formed. The support is divided into a plurality of segmented support members extending from the base along the axial direction by n slit holes. Each divided support is cantilevered with the base side as the fixed end, The free end of each segmented support is flexible in the direction toward the axis of the support and in the direction away from the axis. When the support portion is inserted into the cleaning body, The cleaning body is supported by the support portion along the axial direction, A cleaning tool characterized in that the portion of the inner surface of the cleaning body that is in contact with the outer surface of each divided support receives a radial force extending radially from the axis of the support portion from each divided support.

7. In the cleaning tool according to claim 5 or claim 6, A cleaning tool characterized in that each of the plurality of divided supports is arranged at equal intervals along the outer circumference of the support.

8. In a cleaning tool according to any one of claims 1 to 3, The cleaning body is characterized by being formed from a knitted fabric using microfiber yarn.

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