Cleaning tools

Abstract

A cleaning tool capable of effectively cleaning recesses. [Solution] The free end 52 of each divided support 50 is flexible both toward the axis 40a of the support part 40 and in a direction away from the axis 40a, and the cleaning body 20 is expandable and contractable according to the size of the support part 40. As a result, when the tip of the cleaning tool 10 (the part corresponding to the free end 52 of each divided support 50 in the cleaning body 20 attached to the support part 40) is inserted into a recess to clean the inner surface of the recess, the tip of the cleaning tool 10 (more specifically, the shape near the blocking part 22 of the cleaning body 20) can be deformed according to the radial and depth sizes of the recess and the shape of the inner surface of the recess.

Description

[Technical field]

[0001] The present invention relates to a cleaning tool. [Background technology]

[0002] Conventionally, techniques relating to brush cores are known (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-046981 A Summary of the Invention [Problem to be solved by the invention]

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

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a cleaning tool that can effectively clean recesses. [Means for solving the problem]

[0006] In order to solve the above problems, the invention of claim 1 provides a cleaning tool for cleaning the inner surface of a recess, the cleaning tool comprising: a cleaning body which is a cylinder extending in one direction and has an opening at one end and a closed portion at the other end; a support part which can be inserted into the cleaning body and which supports the cleaning body while being in contact with the inner surface of the cleaning body; and a handle part which is connected to the support part, the cleaning body being extendable and retractable according to a size of the support part, the support parts each having a base part which is connected to the handle part, and each of the support parts is disposed along the outer periphery of the base part and extends from the base part to the support part. and a plurality of divided supports extending along the axial direction of the support portion, each divided support being cantilever-shaped with the base side as a fixed end, and the free end of each divided support being flexible toward the axial direction of the support portion and in a direction away from the axial center, and when the support portion is inserted into the cleaning body, the cleaning body is supported along the axial direction relative to the support portion, and the portion of the inner surface of the cleaning body that contacts the outer peripheral surface of each divided support is subjected to a radial force from each divided support extending radially from the axial center of the support portion.

[0007] The invention of claim 2 is the cleaning tool according to claim 1, wherein the outer circumferential surface of at least one of the divided supports is curved.

[0008] The invention of claim 3 is the cleaning tool according to claim 1, characterized in that an outer circumferential surface of at least one of the divided supports is flat.

[0009] The invention of claim 4 is characterized in that, in the cleaning tool according to any one of claims 1 to 3, each of the multiple divided supports is arranged at equal intervals along the outer periphery of the base.

[0010] The invention of claim 5 is a cleaning tool for cleaning the inner surface of a recess, comprising: a cleaning body which is a cylinder extending in one direction and has an opening at one end and a closed part at the other end; a support part which can be inserted into the cleaning body and supports the cleaning body while being in contact with the inner surface of the cleaning body; and a handle part connected to the support part, the cleaning body being extendable and retractable according to a size of the support part, the support part having a base part connected to the handle part and a cylindrical support body which is connected to the base part, the support body having a plurality of slit holes which extend along the axial direction of the support part, The support body is divided into a plurality of divided supports extending from the base along the axial direction by the plurality of slit holes, each divided support is cantilever-shaped with the base side as a fixed end, and the free end of each divided support is flexible toward the axial direction of the support part and in a direction away from the axial center, and when the support part is inserted into the cleaning body, the cleaning body is supported by the support part along the axial direction, and the portion of the inner surface of the cleaning body that contacts the outer peripheral surface of each divided support is subjected to a radial force from each divided support extending radially from the axial center of the support part.

[0011] The invention of claim 6 is a cleaning tool for cleaning the inner surface of a recess, comprising: a cleaning body which is a cylinder extending in one direction and has an opening at one end and a closed portion at the other end; a support part which can be inserted into the cleaning body and supports the cleaning body while being in contact with the inner surface of the cleaning body; and a handle part connected to the support part, the cleaning body being expandable and contractible according to a size of the support part, the support part having a base part connected to the handle part, and a support body connected to the base and having an n-sided cylindrical shape (n is a natural number of 4 or more), and among the n-side surfaces of the support body, a portion corresponding to the side of two adjacent side surfaces is provided with a groove extending in an axial direction of the support part. a cleaning body having n slit holes extending along the axis of the support body, the support body being divided by n slit holes into a plurality of divided supports extending from the base along the axial direction, each divided support body being cantilever-shaped with the base side as a fixed end, and each divided support body having a free end that is flexible toward the axial direction of the support body and in a direction away from the axial center, and when the support body is inserted into the cleaning body, the cleaning body is supported by the support body along the axial direction, and a portion of the inner surface of the cleaning body that is in contact with the outer peripheral surface of each divided support body is subjected to a radial force extending radially from the axial center of the support body from each divided support body.

[0012] The invention of claim 7 is characterized in that, in the cleaning tool according to claim 5 or 6, the multiple divided support bodies are arranged at equal intervals along the outer periphery of the support body.

[0013] The invention of claim 8 is the cleaning tool according to any one of claims 1 to 3, characterized in that the cleaning element is formed of knitted fabric using microfiber yarn. Effect of the Invention

[0014] According to the inventions described in claims 1 to 8, the free ends of the divided supports are flexible toward the axis of the support part and in the direction away from the axis, and the cleaning body is expandable and contractible according to the size of the support part. As a result, when the tip of the cleaning tool (the part corresponding to the free end of each divided support when the cleaning body is attached to the support part) is inserted into a recess to clean the inner surface of the recess, the tip of the cleaning tool (more specifically, the shape of the cleaning body near the closed part) can be deformed according to the radial and depth sizes of the recess and the inner surface shape of the recess. Therefore, recesses of various sizes and inner surfaces can be cleaned without replacing either the support part or the cleaning body.

[0015] According to the invention described in claims 1 to 8, when the support part is inserted into the cleaning body, the inner surface of the cleaning body that is in contact with the outer circumferential surface of each divided support receives a radial force extending radially from the axis of the support from each divided support, thereby preventing the cleaning body from falling off the support part. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view showing an example of a configuration of a cleaning tool according to a first embodiment of the present invention. [Diagram 2] FIG. 1 is a perspective view showing an example of a configuration of a cleaning tool according to a first embodiment of the present invention. [Diagram 3] FIG. 2 is a diagram for explaining a target to be cleaned by the cleaning tool. [Figure 4] 1 is a cross-sectional view showing an example of a configuration of a cleaning tool in a first embodiment of the present invention. [Diagram 5] FIG. 2 is a perspective view showing an example of a configuration of a support portion and a handle portion in the first embodiment of the present invention. [Figure 6] FIG. 2 is a perspective view showing an example of a configuration of a support portion and a handle portion in the first embodiment of the present invention. [Figure 7] FIG. 2 is a front view showing an example of a configuration of a support portion and a handle portion in the first embodiment of the present invention. [Figure 8]FIG. 2 is a right side view showing an example of a configuration of a support part and a handle part in the first embodiment of the present invention. [Figure 9] FIG. 2 is a plan view showing an example of a configuration of a support portion and a handle portion in the first embodiment of the present invention. [Figure 10] FIG. 2 is a bottom view showing an example of a configuration of a support part and a handle part in the first embodiment of the present invention. [Figure 11] FIG. 11 is a perspective view showing an example of the configuration of a cleaning tool according to a second embodiment of the present invention. [Figure 12] 13 is a front view showing an example of a configuration of a support portion and a handle portion in a second embodiment of the present invention. FIG. [Figure 13] 13 is a right side view showing an example of the configuration of a support part and a handle part in the second embodiment of the present invention. FIG. [Figure 14] 13 is a plan view showing an example of a configuration of a support portion and a handle portion in the second embodiment of the present invention. FIG. [Figure 15] FIG. 11 is a bottom view showing an example of the configuration of a support part and a handle part in the second embodiment of the present invention. [Figure 16] FIG. 11 is a perspective view showing an example of the configuration of a cleaning tool according to a third embodiment of the present invention. [Figure 17] FIG. 13 is a front view showing an example of a configuration of a support portion and a handle portion in a third embodiment of the present invention. [Figure 18] FIG. 13 is a right side view showing an example of the configuration of a support part and a handle part in the third embodiment of the present invention. [Figure 19] 13 is a plan view showing an example of the configuration of a support portion and a handle portion in the third embodiment of the present invention. FIG. [Figure 20] FIG. 13 is a bottom view showing an example of the configuration of a support part and a handle part in the third embodiment of the present invention. [Figure 21] FIG. 13 is a perspective view showing an example of the configuration of a cleaning tool according to a fourth embodiment of the present invention. [Figure 22] FIG. 13 is a front view showing an example of a configuration of a support portion and a handle portion in a fourth embodiment of the present invention. [Diagram 23]FIG. 13 is a right side view showing an example of the configuration of a support part and a handle part in the fourth embodiment of the present invention. [Figure 24] 13 is a plan view showing an example of the configuration of a support portion and a handle portion in the fourth embodiment of the present invention. FIG. [Diagram 25] FIG. 13 is a bottom view showing an example of the configuration of a support part and a handle part in the fourth embodiment of the present invention. [Figure 26] 5 is a cross-sectional view showing another example of the configuration of the cleaning tool in the first embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described in detail 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 for explaining an 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] Here, the cleaning tool 10 in the first embodiment of the present invention is used to clean the inner surface of a recess, for example, a hole 8 for a nut 7 provided in a wheel 5 of a passenger vehicle, as shown in Fig. 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 Figs. 1, 2 and 4, the cleaning tool 10 mainly includes a cleaning body 20, a support part 40, and a handle part 70.

[0020] The cleaning element 20 is a cylinder extending in one direction (extension direction AR1) as shown in Fig. 4. As shown in Fig. 4, an opening 21 is formed at one end 20a of the cleaning element 20, and a blocking portion 22 is formed at the other end 20b.

[0021] 4, the cleaning body 20 is bag-shaped before the support part 40 is inserted. The cleaning body 20 is made of 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 to 100% by weight of polyester and 0 to 30% by weight of nylon. The thickness of the microfiber yarn is preferably 3 to 8 μm (more preferably 5 to 8 μm). The knitted fabric may be knitted by any of circular knitting, weft knitting, and warp knitting.

[0023] 4, the support part 40 can be inserted into the cleaning element 20 and supports the cleaning element 20 in contact with the inner surface 25 of the cleaning element 20. The detailed configuration of the support part 40 will be described later.

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

[0025] Here, the support part 40 and the handle part 70 may be made of a material such as polypropylene, ABS resin, polyethylene, nylon, or polycarbonate. The support part 40 and the handle part 70 may be integrally formed or may be separate.

[0026] <1.2. Structure of the support part> Figures 5 and 6 are perspective views showing an example of the configuration of the support part 40 and the handle part 70. Figures 7 to 10 are front, right side, plan, and bottom views showing an example of the configuration of the support part 40 and the handle part 70. Here, the back view and left side view are the same as the front view and right side view, respectively.

[0027] As shown in FIGS. 5 to 10, the support portion 40 mainly includes a base portion 41 and a support member 43.

[0028] 5 to 8, base 41 is connected to handle 70 and support 43. That is, base 41 is connected to support 43 at a position opposite handle 70 across base 41. Support 43 is formed by a plurality of divided supports 50 (eight in this embodiment).

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

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

[0031] Each split support 50 is cantilever-shaped with the fixed end 51 on the base 41 side, and the free end 52 of each split support 50 is flexible both toward the axis 40a of the support part 40 (in the direction approaching the axis 40a) and in the direction away from the axis 40a.

[0032] 5 to 8 and 10, each divided support body 50 has a tapered shape. That is, if the length along the direction perpendicular to the axial direction AR2 of the outer peripheral surface 55 of each divided support body 50 is defined as the outer peripheral length, this outer peripheral length becomes smaller as it becomes farther away from the base 41.

[0033] 4, when the support part 40 is inserted into the cleaning element 20, the cleaning element 20 is supported along the axial direction AR2 relative to the support part 40, while the inner surface 25 of the cleaning element 20 receives a force from the divided support body 50 in a radial direction AR3 extending radially from the axial center 40a of the support part 40. In other words, the cleaning element 20 is extendable and contractable in, for example, the axial direction AR2 and / or the radial direction AR3 depending on the size of the support part 40.

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

[0035] <1.3. Advantages of the cleaning tool according to 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 toward the axis 40a of the support part 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 part 40. As a result, when the tip 10a of the cleaning tool 10 (the part corresponding to the free end 52 of each divided support 50 in the cleaning body 20 in the state where it is attached to the support part 40: see Figs. 1 and 2) is inserted into a recess (for example, the hole 8 of the wheel 5: see Fig. 3) to clean the inner surface of the recess, the tip 10a of the cleaning tool 10 (more specifically, the shape near the blocking part 22 of the cleaning body 20) can be deformed according to the radial and depth sizes of the recess and the inner surface shape of the recess. Therefore, recesses of various sizes and inner surfaces can be cleaned without replacing either the support part 40 or the cleaning body 20.

[0036] In the cleaning tool 10 of the first embodiment, when the support part 40 is inserted into the cleaning body 20, the portion of the inner surface 25 of the cleaning body 20 that contacts the outer circumferential surface 55 of each divided support 50 receives a force from each divided support 50 in a radial direction AR3 extending radially from the axis 40a of the support part 40. This prevents the cleaning body 20 from falling off the support part 40.

[0037] <2. Second embodiment> Next, a second embodiment of the present invention will be described. The cleaning tools 10, 110 of the first and second embodiments have similar configurations, except that the configurations of the corresponding handles 70, 170 are different. Therefore, the following description will focus on this difference.

[0038] Note that the same components in the cleaning tools 10 and 110 are given the same reference numerals, and the components to which the same reference numerals are given have been described in the first embodiment, so the description thereof will be omitted in this embodiment.

[0039] <2.1. Composition of cleaning tools> 11 to 15 are respectively a perspective view, a front view, a right side view, a plan view, and a bottom view showing an example of the configuration of the support part 40 and the handle part 170. Here, the back view and the left side view are the same as the front view and the right side view, respectively.

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

[0041] Like the handle 70 of the first embodiment, the handle 170 is an element to be held by the user. That is, the handle 170 is used as a grip by the user. As shown in Figs. 11 and 12, the handle 170 is a rod-shaped body extending in the axial direction AR2 and connected to the support part 40. The handle 170 is provided with a through hole penetrating in a direction intersecting with the axial direction AR2.

[0042] Here, the material of handle 170 may be the same as that of support 40 and handle 70 of the first embodiment. Furthermore, support 40 and handle 170 may be integrally formed or may be separate.

[0043] 2.2. Advantages of the cleaning tool according to 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 can prevent the cleaning body 20 from falling off the support part 40, like the cleaning tool 10 of the first embodiment.

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

[0045] In addition, the same components in the cleaning tools 10 and 210 are given the same reference numerals, and the components to which the same reference numerals are given have been described in the first embodiment, so the description thereof will be omitted in this embodiment.

[0046] <3.1. Composition of cleaning tools> 16 to 20 are respectively a perspective view, a front view, a right side view, a plan view, and a bottom view showing an example of the configuration of the support part 240 and the handle part 270. Here, the back view and the left side view are the same as the front view and the right side view, respectively.

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

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

[0049] Like the handle 70 of the first embodiment, the handle 270 is an element to be held by the user. That is, the handle 270 is used as a grip by the user. As shown in Figs. 16 and 17, the handle 270 is a rod-shaped body extending in the axial direction AR2, and is connected to the support part 240. The handle 270 is provided with a through hole penetrating in a direction intersecting with the axial direction AR2.

[0050] Here, the materials used for the support portion 240 and the handle portion 270 may be the same as those used for the support portion 40 and the handle portion 70 of the first embodiment. Furthermore, the support portion 240 and the handle portion 270 may be configured as an integral body or as separate bodies.

[0051] <3.2. Structure of the support part> 16 to 20, the support part 240 has a base part 241 connected to the handle part 270, and an octagonal tubular support part 243 connected to the base part 241. That is, as shown in Fig. 16 to 18, the base part 241 is connected to the support part 243 at a position on the opposite side to the handle part 270 with the base part 241 in between. The support part 243 is formed by a plurality of divided supports 250 (eight in this embodiment).

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

[0053] In other words, slit holes 245 extending along the axial direction AR2 of the support part 240 are formed in portions (i.e., portions where the sides are extended) corresponding to the sides 244 of two adjacent outer circumferential surfaces among the eight outer circumferential surfaces 255 (side surfaces) of the support part 243, and the support part 240 is divided into a plurality of divided supports 250 extending along the axial direction AR2 from the base part 241 by the eight slit holes 245. That is, the number of divisions of the support part 243 is "8".

[0054] In addition, since the support body 243 is shaped like an octagonal cylinder, the outer peripheral surface 255 of each divided support body 250 is flat. Furthermore, each divided support body 250 is disposed at equal intervals along the outer periphery of the base portion 241, and extends from the base portion 241 along the axial direction AR2 of the support portion 240. In other words, it can be said that each of the multiple divided supports 250 is disposed at equal intervals along the outer periphery of the support body 243.

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

[0056] 16 to 18, each divided support body 250 has a tapered shape. That is, if the length along the direction perpendicular to the axial direction AR2 of the outer circumferential surface 255 of each divided support body 250 is defined as the outer circumferential length, this outer circumferential length becomes smaller as it becomes farther away from the base 241.

[0057] When the support part 240 is inserted into the cleaning body, the cleaning body is supported along the axial direction AR2 relative to the support part 240, while the inner surface of the cleaning body receives a force from the split support body 250 in a radial direction AR3 extending radially from the axial center 240a of the support part 240.

[0058] Here, the size of each slit hole 245 and the shape of each divided support body 250 are set according to the interference state and bending strength of each divided support body 250. In other words, the shape of each divided support body 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 flexible toward the axis 240a of the support part 240 and in the direction away from the axis 240a, and the cleaning body is expandable and contractible according to the size of the support part 240. As a result, when the tip of the cleaning tool 210 (the part corresponding to the free end 252 of each divided support 250 in the cleaning body in the state where it is attached to the support part 240) is inserted into a recess (for example, the hole 8 of the wheel 5: see FIG. 3) to clean the inner surface of the recess, the tip of the cleaning tool 110 (more specifically, the shape near the closed part of the cleaning body) can be deformed according to the radial and depth sizes of the recess and the inner surface shape of the recess. Therefore, recesses of various sizes and inner surfaces can be cleaned without replacing either the support part 240 or the cleaning body.

[0060] In addition, in the cleaning tool 210 of the third embodiment, when the support part 240 is inserted into the cleaning body, the part of the inner surface of the cleaning body that contacts the outer circumferential surface 255 of each divided support 250 receives a force from each divided support 250 in a radial direction AR3 extending radially from the axis 240a of the support part 240. Therefore, it is possible to prevent the cleaning body from falling off the support part 240.

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

[0062] Note that the same components in the cleaning tools 210 and 310 are given the same reference numerals, and the components to which the same reference numerals are given have been described in the first embodiment, so the description thereof will be omitted in this embodiment.

[0063] <4.1. Composition of cleaning tools> 21 to 25 are respectively a perspective view, a front view, a right side view, a plan view, and a bottom view showing an example of the configuration of the support part 340 and the handle part 270. Here, the back view and the left side view are the same as the front view and the right side view, respectively.

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

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

[0066] Here, the material of the support part 340 may be the same as that of the support part 40 and the handle part 70 of the first embodiment. Furthermore, the support part 340 and the handle part 270 may be integrally formed or may be formed as separate bodies.

[0067] <4.2. Structure of the support part> 21 to 25, support part 340 has a base 341 connected to handle part 270, and a hexagonal tubular support 343 connected to base 341. That is, as shown in Figs. 21 to 23, base 341 is connected to support 343 at a position opposite handle part 270 with base 341 in between. Support 343 is formed by a plurality of divided supports 350 (six in this embodiment).

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

[0069] In other words, slit holes 345 extending along the axial direction AR2 of the support part 340 are formed in portions of the six outer peripheral surfaces 355 (side surfaces) of the support part 343 that correspond to the sides 344 of two adjacent outer peripheral surfaces (i.e., portions where the sides are extended), and the support part 340 is divided by the six slit holes 345 into a plurality of divided support parts 350 that extend from the base part 341 along the axial direction AR2. That is, the number of divisions of the support part 343 is "6".

[0070] In addition, because support body 343 is shaped like a hexagonal cylinder, outer peripheral surface 355 of each divided support body 350 is flat. Furthermore, divided support bodies 350 are arranged at equal intervals along the outer periphery of base 341, and extend from base 341 along axial direction AR2 of support part 340. In other words, it can be said that each of multiple divided support bodies 350 is arranged at equal intervals along the outer periphery of support body 343.

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

[0072] 21 to 23, each divided support body 350 has a tapered shape. That is, if the length along the direction perpendicular to the axial direction AR2 of the outer circumferential surface 355 of each divided support body 350 is defined as the outer circumferential length, this outer circumferential length becomes smaller as it becomes farther away from the base portion 341.

[0073] When the support part 340 is inserted into the cleaning body, the cleaning body is supported along the axial direction AR2 relative to the support part 340, while the inner surface of the cleaning body receives a force from the split support body 350 in a radial direction AR3 extending radially from the axial center 340a of the support part 340.

[0074] Here, the size of each slit hole 345 and the shape of each divided support body 350 are set according to the interference state and bending strength of each divided support body 350. In other words, the shape of each divided support body 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 can clean recesses of various sizes and inner shapes without replacing either the support part 340 or the cleaning body, similar to the cleaning tool 210 of the third embodiment. Furthermore, the cleaning tool 310 of the fourth embodiment can prevent the cleaning body from falling off the support part 340, similar to the cleaning tool 210 of the third embodiment.

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

[0077] (1) In the first embodiment, the cleaning element 20 is described as being a knitted fabric, but the cleaning element 20 is not limited to this. The cleaning element 20 may be a 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 support body 43 is described as "8," in the third embodiment, the number of divisions of support body 243 is described as "8," and in the fourth embodiment, the number of divisions of support body 343 is described as "6." However, the number of divisions of the support body is not limited to this.

[0079] For example, when the support has an n-sided cylindrical shape, that is, (i) a slit hole extending along the axial direction of the support part is formed in a side edge portion between two adjacent side surfaces among the n number of side surfaces of the support part, (ii) When the support is divided into a plurality of divided support bodies 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, when the support is cylindrical, the number of divisions may be a natural number of preferably 4 or more (more preferably a natural number of 6 or more and 12 or less).

[0081] (3) In the first and second embodiments, the support portion 40 is a cylinder and the outer peripheral surfaces 55 of the divided supports 50 are all curved, and in the third and fourth embodiments, the support portions 240, 340 are each a rectangular tube and the outer peripheral surfaces 255, 355 of the divided supports 250, 350 are all flat, but the shape of the outer peripheral surfaces is not limited to this. The outer peripheral surfaces of the divided supports included in the support may be a mixture of curved and flat surfaces.

[0082] (4) In the first embodiment, the shape of the handle 70 is a plate, and in the second to fourth embodiments, the shape of the handle is a rod, but the present invention is not limited to this. Any shape that can be easily gripped by a user is sufficient.

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

[0084] Fig. 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 Fig. 26, after the support part 40 is inserted into the cleaning element 20, the bag bottom part of the cleaning element 20 may be folded back and stored in the space (inner space) surrounded by the multiple divided supports 50, and then a lid part 27 made of urethane foam or the like may be placed on the other end 20b. That is, the lid part 27 forms the blocking part 22 on the other end 20b.

[0085] This allows the head of the nut 7 to be cleaned simultaneously and effectively by the cleaning body 20 arranged in the inner space, and the inner wall surface of the hole 8 to be cleaned simultaneously and effectively by the cleaning body 20 arranged outside the support part 40.

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

[0087] In addition, when a part of the cleaning body 20 is folded into a space surrounded by a plurality of divided supports 50, Of the inner surface 25 of the cleaning body 20, the portion 26 that contacts the outer peripheral surface of each divided support body is the portion that receives force from each divided support body 50 in the radial direction AR3 (see Figures 10, 15, 20 and 25) extending radially from the axis 40a of the support portion 40. (6) In the first to fourth embodiments, the microfiber yarn is described as including polyester and / or nylon, but is not limited thereto. For example, it is sufficient for the microfiber yarn to 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 Body 20a one end 20b Other end 21 Aperture 22 Occlusion 25 Inside 26 parts Supports 40, 240, 340 Axes 40a, 240a, 340a Bases 41, 241, 341 Outer periphery 42 Supports 43, 243, 343 Slit holes 45, 245, 345 Split supports 50, 250, 350 Fixed ends 51, 251, 351 Free ends 52, 252, 352 Outer peripheral surfaces 55, 255, 355 Handles 70, 170, 270 Side 244, noun 244 Extension direction AR1 Axial direction AR2 Radial direction AR3

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 and has an opening at one end and a closing portion at the other end; (b) a support part that is insertable into the cleaning body and supports the cleaning body while being in contact with an inner surface of the cleaning body; (c) a handle portion connected to the support portion; Equipped with The cleaning element is extendable and retractable according to the size of the support part, The support portion is (b-1) a base portion connected to the handle portion; (b-2) a plurality of divided supports each arranged along an outer periphery of the base and extending from the base along an axial direction of the support portion; having Each divided support is formed in a cantilever shape with the base side as a fixed end, A free end of each divided support body is bendable toward an axis of the support body and in a direction away from the axis of the support body, When the support part is inserted into the cleaning body, The cleaning element is supported along the axial direction by the support part, A cleaning tool characterized in that the portion of the inner surface of the cleaning body that contacts the outer peripheral surface of each divided support receives a radial force from each divided support extending radially from the axis of the support part.

2. The cleaning tool according to claim 1, A cleaning tool characterized in that an outer circumferential surface of at least one of the divided supports is curved.

3. The cleaning tool according to claim 1, A cleaning tool characterized in that an outer circumferential surface of at least one of the divided supports is flat.

4. The 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 disposed at equal intervals along the outer periphery 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 and has an opening at one end and a closing portion at the other end; (b) a support part that is insertable into the cleaning body and supports the cleaning body while being in contact with an inner surface of the cleaning body; (c) a handle portion connected to the support portion; Equipped with The cleaning element is extendable and retractable according to the size of the support part, The support portion is (b-1) a base portion connected to the handle portion; (b-2) a cylindrical support connected to the base; having The support body has a plurality of slits formed therein, the slits extending along an axial direction of the support portion, the support body is divided into a plurality of divided support bodies extending from the base portion along the axial direction by the plurality of slit holes, Each divided support is in the form of a cantilever with the base side as a fixed end, A free end of each divided support body is bendable toward an axis of the support body and in a direction away from the axis of the support body, When the support part is inserted into the cleaning body, The cleaning element is supported along the axial direction by the support part, A cleaning tool characterized in that the portion of the inner surface of the cleaning body that contacts the outer peripheral surface of each divided support receives a radial force from each divided support extending radially from the axis of the support part.

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 and has an opening at one end and a closed portion at the other end; (b) a support part that is insertable into the cleaning body and supports the cleaning body while being in contact with an inner surface of the cleaning body; (c) a handle portion connected to the support portion; Equipped with The cleaning element is extendable and retractable according to the size of the support part, The support portion is (b-1) a base portion connected to the handle portion; (b-2) a support connected to the base and having an n-sided cylindrical shape (where n is a natural number of 4 or more); having A slit hole extending along an axial direction of the support portion is formed in a portion corresponding to a side edge between two adjacent side surfaces among the n number of side surfaces of the support portion, The support is divided into a plurality of divided support members extending from the base portion along the axial direction by n slit holes, Each divided support is in the form of a cantilever with the base side as a fixed end, A free end of each divided support body is bendable toward an axis of the support body and in a direction away from the axis of the support body, When the support part is inserted into the cleaning body, The cleaning element is supported along the axial direction by the support part, A cleaning tool characterized in that the portion of the inner surface of the cleaning body that contacts the outer peripheral surface of each divided support receives a radial force from each divided support extending radially from the axis of the support part.

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

8. The cleaning tool according to any one of claims 1 to 3, The cleaning element is characterized in that it is formed of a knitted fabric using microfiber yarn.

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