WO2018051525A1

WO2018051525A1 - Cleaning device

Info

Publication number: WO2018051525A1
Application number: PCT/JP2016/079537
Authority: WO
Inventors: 須田　朋和; 優佳眞鍋; 泰彦釼持
Original assignee: ユニ・チャーム株式会社
Priority date: 2016-09-13
Filing date: 2016-10-04
Publication date: 2018-03-22
Also published as: TW201811254A; JP2018042690A; JP6628708B2

Abstract

The purpose of the present disclosure is to provide a cleaning device that, when caused to bend for use, is capable of deforming to conform to the depth of a location to be cleaned. This cleaning device is configured as described below. A cleaning device (1): provided with a first arm (5) having a gripping part (3), a second arm (9), a rotating part (7) that connects the first arm (5) and the second arm (9) and is capable of adjusting the arm angle (θ), and a cleaning body attachment part (11) that is connected to the second arm (9) and is used for attaching a cleaning body (101); and having a distal end (13) and a base end (15), wherein the cleaning device (1) is characterized in that the second arm (9) is extendable.

Description

Cleaning tool

This disclosure relates to a cleaning tool.

A cleaning tool is commercially available that attaches a disposable cleaning body to the cleaning body mounting portion and performs wiping cleaning such as dust. As the cleaning tool, for example, as shown in Patent Literature 1, Patent Literature 2, etc., a first arm portion that includes a gripping portion and can be expanded and contracted, a rotating portion, and a second arm portion that cannot be expanded and contracted, and cleaning What is provided with a body attaching part is known.

JP 2004-49618 A JP 2008-253522 A

The cleaning tools described in Patent Literature 1, Patent Literature 2 and the like have excellent performance for removing dust and the like at high places where the first arm portion is extendable and difficult to reach. Since the arm part cannot be extended and contracted, there is an obstacle (for example, the air conditioner main body) between the user of the cleaning tool and the place to be cleaned (for example, the recessed part of the top plate of the air conditioner), and the cleaning tool There is room for improvement from the viewpoint of cleaning according to the depth of the place to be cleaned when it is to be bent.
Therefore, this indication aims at providing the cleaning tool which can change according to the depth of the place which should be cleaned, when a cleaning tool should be bent and used.

The present disclosure includes a first arm portion having a grip portion, a second arm portion, a rotating portion that connects the first arm portion and the second arm portion and can adjust an arm angle, and a second arm portion And a cleaning tool mounting portion for mounting the cleaning tool, the cleaning tool having a distal end and a base end, wherein the second arm portion is extendable and retractable. .

The cleaning tool of the present disclosure can be deformed according to the depth of the place to be cleaned when the cleaning tool is to be bent.

FIG. 1 is a perspective view of the cleaning tool 1 according to the first embodiment, in a cleaning configuration, to which the cleaning tool 1 is attached. FIG. 2 is a left side view of the cleaning tool 1 in the storage mode. FIG. 3 is a view for explaining the cleaning tool 1 in a state where the arm angle θ is adjusted to 180 degrees. FIG. 4 is a cross-sectional view of the left side surface of the second arm portion 9. FIG. 5 is an enlarged view of the second arm portion first cylinder 201 and the second arm portion second cylinder 205. FIG. 6 is a cross-sectional view of the rotary unit 7 taken along the line VI-VI in FIG. FIG. 7 is a diagram for explaining the geared bush 307. FIG. 8 is a diagram for explaining the rotary ratchet 309. FIG. 9 is a view for explaining the first arm portion 5 in the contracted form. FIG. 10 is a view for explaining the first arm portion 5 in the extended configuration. FIG. 11 is a view for explaining the first lock member 425. FIG. 12 is a view for explaining the second lock member 427. FIG. 13 is a view for explaining the deformation of the cleaning tool 1 from the storage configuration to the cleaning configuration. FIG. 14 is a view for explaining the deformation of the cleaning tool 1 from the storage configuration to the cleaning configuration. FIG. 15 is a view for explaining the deformation of the cleaning tool 1 from the storage configuration to the cleaning configuration. FIG. 16 is a view for explaining the deformation of the cleaning tool 1 from the storage configuration to the cleaning configuration. FIG. 17 is a view for explaining the deformation of the cleaning tool 1 from the storage configuration to the cleaning configuration. FIG. 18 is a diagram illustrating an example of cleaning using the cleaning tool 1.

[Definition]
・ "Arm angle" for cleaning tools (rotating parts)
In this specification, the “arm angle” related to the cleaning tool (rotating unit) means an angle formed by the first arm unit axis of the first arm and the second arm unit axis of the second arm. In addition, the arm angle takes into consideration a member for making the first arm portion and the second arm portion parallel in the storage configuration, such as the rotating unit coupling body 213 shown in the first embodiment. Absent.

・ "Shrinkage" and "elongation"
In the present specification, “contracted form” and “extended form” relating to members (for example, the first arm part and the second arm part) constituting the cleaning tool are terms used for members that can be expanded and contracted.
Specifically, the “shrinking form” means a state where the expandable member is contracted to the maximum, and the “extension form” means a state where the expandable member is extended to the maximum.
The contracted form is related to a storage form of the cleaning tool described later, and the extended form is related to a cleaning form of the cleaning tool described later.

・ "Storage form" and "cleaning form" for cleaning tools
In this specification, the “storage form” related to the cleaning tool means a form that is adopted when the cleaning tool is stored. Generally, the cleaning tool in the storage form is in a state where all the extendable parts of the cleaning tool are contracted (to the storage form) and the arm angle is minimized.

In this specification, the “cleaning form” related to the cleaning tool means a form adopted when the cleaning tool is used. Generally, the cleaning tool in the cleaning mode is a state in which the arm angle is changed according to the location to be cleaned, and the extendable portion of the cleaning tool is extended according to the location to be cleaned (extensible member) (Including the elongated form). In addition, when cleaning a part close | similar to a user, it may be used without extending | stretching the part which can extend | stretch the cleaning tool.

・ "Front", "side" and "rear" for cleaning tools
In this specification, regarding the cleaning tool, in a state where the user holds the cleaning tool, a surface facing the user side is referred to as a front surface, and a surface opposite to the surface facing the user side is referred to as a back surface. A side surface means two surfaces between a front surface and a back surface.
FIG. 1 shows an X axis, a Y axis, and a Z axis orthogonal to each other, the right side of the X axis is the front of the cleaning tool, and the left side of the X axis is the back of the cleaning tool. The far side toward the Y axis is the right side surface of the cleaning tool, and the near side toward the Y axis is the left side surface of the cleaning tool. The Z axis corresponds to the first arm portion axis.
Further, the definitions of the above-mentioned “front”, “side” and “rear” relating to the cleaning tool are as follows: first arm part axis AL _{1 of} the first arm part 5 and second arm part axis AL _{2 of} the second arm part 9. Are applied in a state where the rotating unit 7 is rotated so as to be parallel (arm angle θ = 180 degrees).

・ "Base" and "Front"
In the present specification, the “base end” and the “tip” respectively mean an end edge on the first arm portion side and an end edge on the cleaning body attachment portion side of the cleaning tool.
・ "Inside" and "Outside"
In this specification, “inside” and “outside” mean that an object is closer to and farther from the axis than the object to be compared, respectively.

The present disclosure relates to the following aspects.
[Aspect 1]
A first arm portion having a gripping portion, a second arm portion, a rotating portion that connects the first arm portion and the second arm portion and can adjust the arm angle, and a cleaning body that is connected to the second arm portion. A cleaning tool mounting portion for mounting the cleaning tool, and a cleaning tool having a distal end and a proximal end,
The second arm part is extendable;
The said cleaning tool characterized by the above-mentioned.

The cleaning tool includes: (i) deformation of the cleaning tool from a storage form to a cleaning form (hereinafter sometimes referred to as “deformation to a cleaning form”), (ii) cleaning by the cleaning tool, and (iii) cleaning tool In general, they are used in the order of deformation from the cleaning form to the storage form (hereinafter sometimes referred to as “deformation to the storage form”).

Since the cleaning tool has the extendable second arm portion, an obstacle (for example, an air conditioner main body) is provided between the user of the cleaning tool and a place to be cleaned (for example, the back part of the top plate of the air conditioner). In a situation where the cleaning tool is to be bent and used, (i) In the deformation to the cleaning form, it is possible to perform the deformation in accordance with the depth of the place to be cleaned. Specifically, when the depth to be cleaned is deep, the second arm portion can be extended to easily clean the depth to be cleaned. Moreover, when the depth of the place to be cleaned is shallow, the place to be cleaned with a small depth can be easily cleaned without extending the second arm portion.

Moreover, as a result of being able to deform | transform according to the depth of the place which should be cleaned, the said cleaning tool is excellent in the cleanability of the place which should be cleaned in the case of (ii) cleaning with a cleaning tool.
In the present specification, “place to be cleaned” means a place to be cleaned in the above-described situation unless otherwise specified.
Furthermore, since the said cleaning tool has the 2nd arm part which can be extended | stretched, when a user with different heights, such as a plurality of users, for example, an adult (male, female), a child, etc. uses it in the home Furthermore, it can be deformed into an optimum shape according to the height of the back.
Furthermore, since the said cleaning tool has the 2nd arm part which can be expand | extended, the storage form of a cleaning tool can be made smaller than a cleaning form, and it is excellent in storage property.

[Aspect 2]
The cleaning tool according to aspect 1, wherein the second arm portion includes a lock mechanism that holds the extended form.
Since the cleaning tool includes a lock mechanism in which the second arm portion maintains the extended form, (ii) when cleaning with the cleaning tool, the shape can be continuously maintained, and the shape maintaining property is excellent. Excellent cleanability of the place to be cleaned.

[Aspect 3]
The second arm part includes at least a second arm part first cylinder having a hollow part and a second arm part second cylinder inserted into the hollow part, and the second arm part is a second arm part. Aspect 1 or 2, wherein the first cylinder and the second arm part can be expanded and contracted by relatively moving, and the second arm part first cylinder is connected to the cleaning body attaching part. 2. The cleaning tool according to 2.

In the cleaning tool, since the second arm portion first cylinder is connected to the cleaning body mounting portion, the cleaning tool grips the grip portion with one hand when the cleaning tool is deformed (i). Then, the second arm part first cylinder is gripped by the other hand (without holding the cleaning body mounting part or the cleaning body attached to the cleaning body mounting part by the other hand), and the second arm part is simply It can be extended and has excellent cleaning form deformability. Further, the cleaning tool (iii) grips the grip portion with one hand, and grips the second arm portion first cylinder with the other hand (cleaning with the other hand) when deformed into the storage form. The second arm portion can be easily contracted without gripping the cleaning body attached to the body mounting portion or the cleaning body mounting portion), and the storage form deformability is excellent.

In addition, when the 2nd arm part 1st cylinder is connected with the rotation part, in order to expand and contract a 2nd arm part, the necessity to hold | grip the cleaning body attaching part or the attached cleaning body arises. Occasionally, there are problems such as the cleaning body dropping off and the user's hands getting dirty. As such a cleaning tool, the 2nd arm part in a contracted form WHEREIN: The 2nd arm part 2nd cylinder is completely accommodated in the hollow part of the 2nd arm part 1st cylinder.

[Aspect 4]
The cleaning tool according to any one of aspects 1 to 3, wherein the rotating unit includes a switching unit that switches between a rotatable state and a non-rotatable state of the rotating unit on a rotation axis thereof.

In the cleaning tool, since the rotating unit includes a predetermined switching unit, (i) when the second cleaning unit is deformed to the cleaning mode, the second arm unit is extended with the other hand while holding the holding unit with one hand. Since the rotating part can be easily changed from the non-rotatable state to the rotatable state, the rotating part is rotated, and the rotating part is switched from the rotatable state to the non-rotatable state. Excellent cleaning form deformability.

Further, the cleaning tool (iii), when deformed into the storage form, contracts the second arm part with the other hand while holding the grip part with one hand, and moves the rotating part from the non-rotatable state. Since a series of storage form deformation operations that switch to the rotatable state, rotate the rotating unit, and switch the rotating unit from the rotatable state to the non-rotatable state can be easily performed, the storage form deformability is excellent.
The above-described cleaning form deformation operation and storage form deformation operation are examples of the cleaning form deformation operation and the storage form deformation operation of the cleaning tool of the present disclosure, and limit the configuration, usage, and the like of the cleaning tool of the present disclosure. It is not a thing.

[Aspect 5]
The rotating part includes a first gear part connected to the first arm part and having the rotating shaft, and a second gear part connected to the second arm part and having the rotating shaft, Each of the first gear portion and the second gear portion includes a plurality of first tooth portions and a plurality of second tooth portions that mesh with each other, and the switching portion pushes the switching portion, thereby the first gear portion. The engagement between the plurality of first tooth portions and the plurality of second tooth portions of the second gear portion is released, and the rotating portion is switched from the non-rotatable state to the rotatable state. Cleaning tools.

In the cleaning tool, since the rotating unit includes a predetermined switching unit, (i) when deforming to the cleaning mode, the second arm unit is extended with the other hand while holding the holding unit with one hand. By pushing the switching unit, the rotating unit is switched from the non-rotatable state to the rotatable state, the rotating unit is rotated, and the pushing of the switching unit is returned to the original state, so that the rotating unit is not rotated from the rotatable state. Since a series of cleaning form deformation | transformation operation | movement switched to a possible state can be implemented easily, it is excellent in cleaning form deformability.

In addition, the above cleaning tool is rotated by (iii) contracting the holding portion with one hand while contracting the second arm portion with the other hand and pushing in the switching portion during the deformation to the storage form. A series of storage form deformation operations to switch the rotating part from the rotatable state to the non-rotatable state by switching the rotating part from the non-rotatable state to the rotatable state, rotating the rotating part, and returning the pushing of the switching part to the original state. Therefore, the storage form is excellent in deformability.
The above-described cleaning form deformation operation and storage form deformation operation are examples of the cleaning form deformation operation and the storage form deformation operation of the cleaning tool of the present disclosure, and limit the configuration, usage, and the like of the cleaning tool of the present disclosure. It is not a thing.

Furthermore, in the cleaning tool, since the rotating portion includes the predetermined first gear portion and the predetermined second gear portion, the rotation allowable angle of the rotating portion can be arbitrarily set (wide and narrow). Further, by adjusting the size of each of the plurality of first tooth portions of the first gear portion and the size of each of the plurality of second tooth portions of the second gear portion, the fixed angle of the rotating portion can be arbitrarily increased (largely, Small) can be set. As a result, the cleaning tool can arbitrarily set the rotation allowable angle of the rotating part and the fixed angle of the rotating part according to the place to be cleaned.

[Aspect 6]
Each of the plurality of first teeth is tapered toward the second gear and / or each of the plurality of second teeth is tapered toward the first gear. When the predetermined force for changing the arm angle is applied to the rotating part, the rotating part includes a plurality of first tooth parts of the first gear part and a plurality of second tooth parts of the second gear part. The cleaning tool according to aspect 5, wherein the meshing is shifted.

In the cleaning tool, when the rotating unit is applied with a force that changes the arm angle described above, the plurality of first teeth of the first gear unit and the plurality of second teeth of the second gear unit. (Ii) The cleaning tool is inferior in visibility, and when cleaning a place to be cleaned, even if a strong force is applied to the cleaning tool, Since the force can be released by shifting the meshing between the first tooth part and the second tooth part of the second gear part, the rotating part is prevented from being damaged, and (ii) when cleaning with a cleaning tool, Excellent cleanability of the place to be cleaned.

[Aspect 7]
In any one of aspects 1 to 6, the first arm portion is extendable, and the first arm portion includes an extension lock mechanism that holds the extended configuration and a contraction lock mechanism that holds the contracted configuration. The cleaning tool described.

In the cleaning tool, the first arm part can be expanded and contracted, and includes a locking mechanism when extended and a locking mechanism when contracted. (Ii) When cleaning with the cleaning tool, the first arm part is extended and contracted. Regardless of which is used, and whether the cleaning tool is used either upward or downward, the shape maintaining property is excellent.

[Aspect 8]
The first arm part includes at least a first arm part first cylinder having a hollow part and a first arm second cylinder inserted into the hollow part, and the first arm first cylinder is provided with the base. A first proximal end portion from the end and a first distal end portion from the distal end, wherein the first arm portion second cylindrical body has a second proximal end portion from the proximal end and a first proximal end portion from the distal end. The first arm portion first cylinder includes a first lock member at a first base end portion, and the first arm portion second cylinder has a second lock portion at a second base end portion. The cleaning tool according to aspect 7, comprising a member, wherein the contraction lock mechanism functions by locking the first lock member and the second lock member.

In the cleaning tool, since the first arm portion includes a locking mechanism at the time of contraction composed of the first lock member and the second lock member, the structure thereof, in particular, the first arm portion first cylinder and the first arm portion The structure of the two cylinders can be simplified, and over the long term, (i) the cleaning form deformability when deformed to the cleaning form, (ii) the shape maintainability when cleaning with the cleaning tool, and (iii) It is easy to maintain the storage form deformability at the time of deformation to the storage form.

[Aspect 9]
The second locking member has an extending portion that extends from the second base end portion of the first arm portion second cylinder body to the outside of the first arm portion second cylinder body along the first arm portion axis. The extending portion includes an engaging convex portion extending in a direction away from the first arm portion axis, the first arm portion first cylinder includes an engaging surface on an inner surface of the first tip portion, and the extension. The cleaning tool according to aspect 8, wherein the hour lock mechanism is expressed by the engagement convex portion engaging the engagement surface.

In the cleaning tool, since the second locking member also has a locking mechanism when extended, the structure, in particular, the structure of the first arm portion first cylinder and the first arm portion second cylinder can be simplified. Over the long term, (i) cleaning form deformability when deformed to a cleaning form, (ii) shape maintenance ability when cleaning with a cleaning tool, and (iii) deformable form shape when deformed to a storage form Easy to maintain.

[Aspect 10]
The cleaning tool according to aspect 8 or 9, wherein the second lock member further includes a sliding portion that slides with the inner surface of the first arm portion first cylinder.

In the cleaning tool, since the second lock member further includes a sliding portion that slides on the inner surface of the first arm portion first cylinder, its structure, particularly the first arm portion first cylinder and the first arm portion. The structure of the second cylinder can be simplified, and over the long term, (i) the cleaning form deformability when deformed to the cleaning form, (ii) the shape maintainability when cleaning with the cleaning tool, and (iii) ) It is easy to maintain the storage form deformability during the deformation to the storage form.
Moreover, in the said cleaning tool, since the length of a 1st arm part can be arbitrarily fixed, (ii) The length of a 1st arm part is arbitrarily fixed in the case of cleaning with a cleaning tool, and the shape Can be maintained, and the shape maintainability is excellent.

[Aspect 11]
When the length from the base end to the rotating shaft of the rotating part is the base end length, and the length from the rotating shaft to the tip of the rotating part is the tip length, the tip length is the contracted form. And the distal end length is in the range of 0.1 to 0.7 times the proximal end length in the extended configuration. The cleaning tool according to any one of Embodiments 7 to 10.

In the cleaning tool, the proximal end length and the distal end length are in a predetermined range, so that the cleaning tool in the storage form can be made compact, while the length of the cleaning body mounting portion, and hence the size of the cleaning body. And the stretchability of the second arm part (the difference between the length of the second arm part in the contracted form and the length of the second arm part in the extended form) can be ensured. Moreover, the center of gravity of the cleaning tool does not become closer to the tip, and the user does not feel the cleaning tool heavy. Moreover, the cleaning tool is excellent in operability, and a place to be cleaned deep can be easily cleaned.

Hereinafter, the cleaning tool of the present disclosure will be described in detail.
FIGS. 1 to 12 are diagrams for explaining a cleaning tool 1 according to one of the embodiments of the present disclosure (hereinafter referred to as “first embodiment”). FIGS. 13 to 17 are views for explaining a modification of the cleaning tool 1 according to the first embodiment from the storage configuration to the cleaning configuration.

FIG. 1 is a perspective view of a cleaning form of the cleaning tool 1 to which a cleaning body 101 is attached. FIG. 2 is a left side view of the cleaning tool 1 in the storage form (contracted form). FIG. 3 is a diagram illustrating the cleaning tool 1 in a state where the arm angle θ is adjusted to 180 degrees. Specifically, FIG. 3A is a front view of the cleaning tool 1 in a state where the arm angle θ is adjusted to 180 degrees, and FIG. 3B is a state where the arm angle θ is adjusted to 180 degrees. FIG. 2 is a left side view of the cleaning tool 1.

The cleaning tool 1 according to the first embodiment is capable of connecting the first arm portion 5 having the grip portion 3, the second arm portion 9, the first arm portion 5 and the second arm portion 9, and adjusting the arm angle θ. The rotation part 7 which is and the 2nd arm part are connected, and the cleaning body attachment part 11 for attaching a cleaning body is provided. The cleaning tool 1 includes a proximal end 15 of the first arm portion 5 that is farthest from the rotating portion 7 and a distal end 13 of the cleaning body mounting portion 11 that is furthest from the rotating portion 7.
In addition, since the cleaning body attaching part has a known structure similar to that described in Japanese Patent Application Laid-Open No. 2014-168646, description thereof is omitted.

FIG. 4 is a cross-sectional view of the second arm portion 9. Specifically, FIG. 4A is a cross-sectional view of the left side surface of the second arm portion 9 passing through the second arm portion axis AL ₂ in the contracted configuration, and FIG. 4B is an expanded configuration. FIG. 6 is a cross-sectional view of the left side surface of the second arm portion 9 passing through the second arm portion axis AL ₂ .

As shown in FIG. 4A and FIG. 4B, the second arm portion 9 includes a second arm portion first cylinder 201 having a hollow portion 203 and a second arm portion 9 in a contracted form. A second arm part second cylindrical body 205 inserted into the hollow part 203 and a rotating part connecting body 213 connected to the rotating part 7 are provided. The second arm part first cylinder 201 is connected to the cleaning body attaching part 11, and the second arm part second cylinder 205 is connected to the rotating part connection body 213. The second arm unit 9 moves the second arm unit first cylinder 201 and the second arm unit second cylinder 205 relatively to thereby move the second arm unit axis AL that is the axis of the second arm unit 9. _It can expand and contract in _two directions, and can take the contracted form shown in FIG. 4 (a) and the extended form shown in FIG. 4 (b).

The second arm portion first cylindrical body 201 includes a second arm portion first base end portion 215 from the base end (not shown) of the cleaning tool 1 and a second end from the front end (not shown) of the cleaning tool 1. An arm portion first tip portion 217 is provided. Further, the second arm part second cylinder 205 includes a second arm part second base end part 219 from the base end (not shown) of the cleaning tool 1 and a tip end (not shown) of the cleaning tool 1. A second arm portion and a second tip portion 221 are provided.

FIG. 5 is an enlarged view of the second arm portion first cylinder 201 and the second arm portion second cylinder 205 (a left side view, a cross-sectional view passing through the second arm portion axis AL ₂ ). Specifically, FIG. 5 (a) is an enlarged view (left side surface in the vicinity of the second arm portion first proximal end 215 of the second arm portion first cylindrical body 201, a second section through the arm portion axis AL ₂ FIG. 5B is an enlarged view of the vicinity of the second arm portion second tip portion 221 of the second arm portion second cylindrical body 205 (the left side surface, a cross-sectional view passing through the second arm portion axis AL ₂₎ . ). The second arm portion first tubular body 201 has a fitting member 207 on the inner surface of the second arm portion first base end portion 215, and the second arm portion first tubular body 201 is more than the fitting member 207. The second arm portion first tip portion 217 is provided with a pair of fitting recesses 209 and a fitting recess 210. The second arm portion second cylindrical body 205 includes a pair of fitting projections 211 and a fitting projection 212 on the second arm portion second tip 221.

In the extended form, the second arm portion 9 is configured such that the fitting projection 211 and the fitting projection 212 of the second arm portion second cylinder 205 are fitted to the fitting recess 209 and the fitting of the second arm portion first cylinder 201, respectively. A locking mechanism is provided that retains the extended form by fitting with the fitting recess 210. Note that each of the fitting protrusion 211 and the fitting protrusion 212 has slits (not shown) on both sides thereof (front and back in FIG. 5B). Each of 212 can flex inward.

In the cleaning tool 1 in the stowed configuration, the rotating part coupling body 213 includes the first arm part 5 and the second arm part 9 (the second arm part first cylinder 201 and the second arm part second cylinder 205). In other words, in other words, it has a curved shape so that the arm angle (not shown) is approximately 0 degrees.

FIG. 6 is a cross-sectional view of the rotating unit 7 taken along the line VI-VI in FIG. The rotating unit 7 includes a display unit 303 and a pushing unit 305 as a switching unit 301, a geared bush 307, a rotating ratchet 309, a first spring 311 and a second spring 313 that are compression coil springs, and a support unit 315. Is provided. The pushing portion 305 and the support portion 315 are disposed on the rotation axis RA of the rotating portion 7. The push-in part 305 and the support part 315 include a bush 307 with a gear, a rotary ratchet 309, a first spring 311 and a second spring 313, and a screw 317, a washer 319, and a nut 321. The pushing portion 305 can be pushed toward the support portion 315 in the direction of the rotation axis RA. In addition, the pushed-in pushing part 305 can return to the original position by the restoring force of the first spring 311 when the pushing force is removed. The support part 315 includes a cap 325 for concealing the screw 317.

The geared bush 307 is connected to the first arm portion fourth cylinder 407 of the first arm portion 5 via the fixing pin 323. The rotary ratchet 309 is arranged inside the geared bush 307, that is, from the center of the rotation axis RA, and is fixed to the pressing portion 305. The supporting portion 315 fixed to the pressing portion 305 so as to be pressed is provided. It is fixed to the rotating part coupling body 213 of the second arm part 9. Further, the first arm portion fourth cylindrical body 407 of the first arm portion 5 and the rotating portion connecting body 213 of the second arm portion 9 are fixed so as to be rotatable along the rotation axis RA.

FIG. 7 is a diagram for explaining the geared bush 307. In FIG. 7, a side view and a bottom view of the geared bush 307 and the shapes of the plurality of first tooth portions 327 are shown in order from the top. As shown in FIG. 7, the geared bush 307 has a cylindrical shape extending along the rotation axis RA, and includes a step portion 328 on an inner surface thereof. The step portion 328 includes a rotary type along the rotation axis RA. Eight first teeth 327 extending toward the ratchet 309 are provided.

FIG. 8 is a view for explaining the rotary ratchet 309. In FIG. 8, a side view of the rotary ratchet 309, a shape and a top view of the plurality of second tooth portions 329 are shown in order from the bottom. As shown in FIG. 8, the rotary ratchet 309 has a cylindrical shape extending along the rotation axis RA, and extends toward the geared bush 307 on the cylindrical end surface 330. Eight second tooth portions 329 extending so as to mesh with the plurality of first tooth portions 327 of the bush 307 are provided. The rotary ratchet 309 also includes a plurality of protrusions 331 that fit into recesses (not shown) of the push-in portion 305.

In a state in which the pushing portion 305 is not pushed, the plurality of first tooth portions 327 of the geared bush 307 and the plurality of second tooth portions of the rotary ratchet 309 are engaged with each other. The ratchet 309 is fixed, and the rotating part 7 is fixed in a non-rotatable state. As a result, the arm angle θ is kept constant.

When the push-in portion 305 is pushed in, the rotary ratchet 309 fixed to the push-in portion 305 is pushed together with the push-in portion 305 so that the geared bush 307 and the rotary ratchet 309 are separated from each other, and a plurality of gear bushes 307 are arranged. The meshing between the one tooth portion 327 and the plurality of second tooth portions 329 of the rotary ratchet 309 is released, and the rotating portion 7 is switched to a rotatable state. As a result, the user can change the arm angle θ.

When the user releases his / her hand from the pushing portion 305, the pushing portion 305 and the rotary ratchet 309 are pushed up by the restoring force of the first spring 311 and the second spring 313, and the plurality of first teeth of the geared bush 307 are formed. The portion 327 and the plurality of second tooth portions 329 of the rotary ratchet 309 mesh with each other, and the rotating portion 7 is switched to a non-rotatable state. As a result, the angle formed by the first arm portion 5 connected to the geared bush 307 and the second arm portion 9 connected to the rotary ratchet 309 is fixed.

In the first embodiment, a total of eight first tooth portions 327 are arranged on the geared bush 307, and a total of eight second tooth portions 329 are arranged on the rotary ratchet 309. Theoretically, it can rotate in the range of 0 to 360 degrees along the rotation axis in increments of 45 degrees. The arm angle can take a value of 0 to 270 degrees in increments of 45 degrees so that the first arm part 5 and the second arm part 9 do not contact each other.

Each of the plurality of first tooth portions 327 of the geared bush 307 has a shape that tapers toward the lower side, that is, closer to the plurality of second tooth portions 329 of the rotary ratchet 309. Specifically, each of the plurality of first tooth portions 327 has a tapered shape so as to have a rotation axis RA and a taper angle θ ₁ . Further, each of the plurality of second tooth portions of the rotary ratchet 309 has a shape that tapers upward toward the upper side, that is, closer to the plurality of first tooth portions of the geared bush 307. Specifically, each of the plurality of second tooth portions 329 has a shape that tapers so as to have a rotation axis RA and a taper angle θ ₂ .

Since each of the plurality of first tooth portions 327 and each of the plurality of second tooth portions 329 has a tapered shape, the first tooth portion 327 and the second tooth portion 329, and thus the geared bush 307 and The rotary ratchet 309 is not easily damaged. When cleaning, the first arm portion 5 collides with furniture, walls, etc., and when a large force is applied to the first arm portion 5 to change the arm angle θ, the first tooth portion having the taper angle θ ₁ 327 moves along the direction in which the second tooth portions 329 having the taper angle θ ₂ are arranged, that is, in the rotation direction of the rotation axis RA, and one engagement of the first tooth portion 327 and the second tooth portion 329 is achieved. This is because the force applied can be released.

When each of the plurality of first teeth 327 and each of the plurality of second teeth 329 has a tapered shape, the taper angle θ ₁ is preferably 1 to 20 degrees, and more preferably 1 to 10 Degrees, and more preferably 2-7 degrees. Further, the taper angle θ ₂ is preferably 1 to 20 degrees, more preferably 1 to 10 degrees, and further preferably 2 to 7 degrees.
The taper angle θ ₁ and the taper angle θ ₂ are preferably the same. This is from the viewpoint of meshing between the plurality of first teeth 327 and the plurality of second teeth 329.
The preferable values of the taper angle θ ₁ and the taper angle θ ₂ vary depending on the engagement depth of the first tooth portion 327 and the second tooth portion 329, the spring constant rate of the first spring and the second spring, and the like. sell.

FIG. 9 is a view for explaining the first arm portion 5 in the contracted form. Specifically, FIG. 9A is a cross-sectional view through the first arm portion axis AL ₁ in front of the first arm portion 5 in the contracted configuration, and FIG. 9B is the first diagram in the contracted configuration. FIG. 6 is a cross-sectional view of the left side surface of the arm portion 5 passing through the first arm portion axis AL ₁ .
FIG. 10 is a view for explaining the first arm portion 5 in the extended configuration. Specifically, FIG. 10A is a cross-sectional view through the first arm portion axis AL ₁ in front of the first arm portion 5 in the extended configuration, and FIG. 10B is the first view in the extended configuration. FIG. 6 is a cross-sectional view of the left side surface of the arm portion 5 passing through the first arm portion axis AL ₁ .

The first arm unit 5 includes a first arm unit first cylinder 401 including a first cylinder hollow part 402 and a second cylinder hollow part 404 inserted into the first cylinder hollow part 402. Inserted into the arm second tube 403, the first arm third tube 405 having the third tube hollow 406 inserted into the second tube hollow 404, and the third tube hollow 406. The first arm portion fourth cylinder 407 is provided.
The first arm unit 5 includes a first arm unit first cylinder 401, a first arm unit second cylinder 403, a first arm unit third cylinder 405, and a first arm unit from the contracted form shown in FIG. a first arm portion 4 the tubular body 407 can be deformed into elongated form by extending the first arm portion axis AL ₁ direction.

The first arm portion first tubular body 401 includes a first base end portion 409 from the base end 15 of the cleaning tool 1 and a first tip end portion 411 from the tip (not shown) of the cleaning tool 1. 1 arm part 2nd cylinder 403 is provided with the 2nd base end part 413 from base end 15 of cleaning tool 1, and the 2nd tip part 415 from the tip (not shown) of cleaning tool 1, The arm portion third cylinder 405 includes a third base end portion 417 from the base end 15 of the cleaning tool 1, and a third front end portion 419 from the front end (not shown) of the cleaning tool 1. The arm portion fourth cylinder 407 includes a fourth base end portion 421 from the base end 15 of the cleaning tool 1 and a fourth tip end portion (not shown) from the tip end (not shown) of the cleaning tool 1. .

The first arm portion first cylinder 401 includes a first lock member 425 at the first base end portion 409, and the first arm portion second cylinder 403 includes a second lock member at the second base end portion 413. 427, the first arm part third cylinder 405 is provided with a third lock member 429 at the third base end part 417, and the first arm part fourth cylinder 407 is provided at the fourth base end part 421. The fourth lock member 431 is provided.

FIG. 11 is a view for explaining the first lock member 425. Specifically, FIG. 11A is a left side view of the first lock member 425, and FIG. 11B passes through the first arm portion axis AL ₁ on the left side surface of the first lock member 425. It is sectional drawing. In addition, in FIG.11 (b), the 1st arm part 1st cylinder 401 is shown with the wavy line for understanding.

The first lock member 425 includes a hanging hole 433 for suspending and storing the cleaning tool 1, a pair of locking second protrusions 447 and a locking second protrusion 441 of an extension portion 441 of the second locking member 427 described later. A pair of first locking recesses 435 and a first locking recess 436 for locking with the protrusion 448, and a screw hole 437 for fixing the first lock member 425 to the first arm portion first cylinder 401, Is provided. As shown in FIGS. 9 and 10, the first lock member 425 is fixed to the first arm portion first tubular body 401 by a screw 438 inserted into the screw hole 437.

FIG. 12 is a view for explaining the second lock member 427. Specifically, FIG. 12 (a) is a left side view of the second lock member 427, and FIG. 12 (b) is an enlarged view of the vicinity of the second lock member 427 of FIG. 10 (b). Therefore, the second lock member 427, the first arm portion first cylinder 401, and the first arm portion second cylinder 403 are shown separated from each other.
The second lock member 427 includes a first arm part axis line from a main body part 439 fixed inside the first arm part second cylinder 403 and a second base end part 413 of the first arm part second cylinder 403. The first arm portion second cylinder body 403 is partitioned into an extending portion 441 extending along the AL ₁ . The extending part 441 is disposed inside the first arm part first tubular body 401 in both the contracted form and the extended form of the first arm part 5.

The main body portion 439 of the second lock member 427 includes a pair of fitting protrusions 445 and fitting protrusions 446 that fit into the pair of fitting holes 443 and the fitting holes 444 of the first arm portion second cylinder 403. ing. The second lock member 427 is configured such that the fitting protrusion 445 and the fitting protrusion 446 are fitted to the fitting hole 443 and the fitting hole 444 of the first arm part second cylinder 403, respectively. It is fixed to the second cylinder 403.

The extension portion 441 of the second lock member 427 includes a pair of lock second protrusions 447 and a lock for locking the first lock member 425 with the pair of lock first recesses 435 and the lock first recess 436. The second projection 448 is provided. The first lock member 425 and the second lock member 427 are configured such that, in the contracted form of the first arm portion 5, the lock second protrusion 447 is fitted into the lock first recess 435, and the lock second protrusion 448 is The first arm portion first cylinder 401 and the first arm portion second cylinder 403 are locked by being fitted in the locking first recess 436.

The extended portion 441 of the second lock member 427 also includes an engaging convex portion 449 having an engaging surface 450 protruding outward (that is, a direction away from the first arm portion axis AL ₁ ), and a sliding portion 451 (451a). , 451b, 451c, 451d). The engaging convex portion 449 is continuously arranged so as to go around the first arm portion axis AL ₁ . Sliding portions 451 (451a, 451b, 451c, 451d) between the slit portions 453 (453a, 453b, 453d, 453d) are disposed, the sliding portion 451, a first circumference of the arm portion axis AL ₁ It is arranged intermittently so as to make a round.

Specifically, the slit portion 453a is disposed between the sliding portion 451a and the sliding portion 451b, and the slit portion 453b is disposed between the sliding portion 451b and the sliding portion 451c. The slit portion 453c is disposed between the portions 451d, and the slit portion 453d is disposed between the sliding portion 451d and the sliding portion 451a. Since the slit portions 453 (453a, 453b, 453d, 453d) are arranged between the sliding portions 451 (451a, 451b, 451c, 451d), the sliding portions 451 (451a, 451b, 451c, 451d). ) Can bend inward.

The first arm portion first tubular body 401 includes a locking portion 457, an engagement surface 459, and a sliding surface 461 on the inner surface 455 of the first tip portion 411 in order from the tip 13. The cross-sectional shape in the direction orthogonal to the first arm portion axis AL ₁ (hereinafter simply referred to as “internal cross-sectional shape”) of the inner surfaces of the locking portion 457, the engaging surface 459, and the sliding surface 461 of the first arm portion first tubular body 401. The first arm portion first tubular body 401 has a sliding surface 461, an engaging surface 459, and a locking portion 457, and the inner surface cross-sectional shape is the same. It has a structure that gradually decreases.

Further, the cross-sectional shape of the outer surface (engagement surface 450) of the engaging convex portion 449 of the extending portion 441 of the second lock member 427 in the direction orthogonal to the first arm portion axis AL ₁ (hereinafter simply referred to as “outer surface cross-sectional shape”). Is an ellipse that is substantially similar to the cross-sectional shapes of the inner surface of the locking portion 457, the engaging surface 459, and the sliding surface 461 of the first arm portion first tubular body 401, and the second locking member 427. The size of the outer surface cross-sectional shape of the engaging convex portion 449 of the extending portion 441 and the size of the inner surface cross-sectional shapes of the locking portion 457, the engaging surface 459 and the sliding surface 461 of the first arm portion first tubular body 401 There is the following relationship.
Locking portion 457 <engagement surface 459 ≦ engagement convex portion 449 <sliding surface 461

The first arm part first cylinder 401 and the first arm part second cylinder 403 are used when the first arm part 5 is deformed from the contracted form to the extended form (the first arm part second cylinder 403 is changed to the first arm part first cylinder part 403). The outer surface cross-sectional shape of the engagement surface 450 of the engagement convex portion 449 of the second lock member 427 is the same as that of the sliding surface 461 of the first arm portion first cylinder 401 when the arm portion first cylinder 401 is pulled out. Since it is smaller than the inner surface cross-sectional shape, the engaging convex portion 449 of the second lock member 427 moves in principle without sliding with the sliding surface 461 of the first arm portion first cylinder 401.

Next, when the engaging convex portion 449 of the second lock member 427 reaches the engaging surface 459 of the first arm portion first cylinder 401, the engaging surface 450 of the engaging convex portion 449 of the second lock member 427 is reached. Since the outer surface cross-sectional shape is the same as or slightly larger than the inner surface cross-sectional shape of the engaging surface 459 of the first arm portion first tubular body 401, the engaging convex portion 449 of the second lock member 427 is formed by the first arm. The engagement surface 459 of the first tube body 401 is engaged. Since the outer surface cross-sectional shape of the engaging surface 450 of the engaging convex portion 449 of the second lock member 427 is larger than the inner surface cross-sectional shape of the locking portion 457 of the first arm portion first cylinder 401, the second lock member 427. The engaging convex portion 449 cannot exceed the locking portion 457 of the first arm portion first tubular body 401. Accordingly, the first arm portion first tubular body 401 and the first arm portion second tubular body are locked in a state where the engaging convex portion 449 and the engaging surface 459 are engaged.

Since the extended portion 441 of the second lock member 427 includes sliding portions 451 (451a, 451b, 451c, 451d) in addition to the engaging convex portion 449, the first arm portion first tubular body 401 and When the first arm part second cylinder is extended from the contracted form to the extended form, the sliding part 451 (451a, 451b, 451c, 451d) of the extended part 441 of the second lock member 427 is the first arm. The first arm unit first cylinder 401 and the first arm unit second cylinder 403 are fixed at an arbitrary position between the contracted form and the extended form. can do.

The second lock member 427 is a pair of locks for causing the main body 439 to lock the pair of third lock projections 465 and the third lock projection 466 (see FIG. 9) of the third lock member 429. A second recess 463 for locking and a second recess 464 for locking.

The structure of the third lock member 429 is the same as that of the second lock member 427, and a main body portion (not shown) fixed inside the first arm portion third cylinder 405 and the first arm portion third cylinder. from the third base portion 417 of the body 405, is divided into a extension portion extending outwardly of the first arm portion third cylindrical member 405 along the first arm portion axis AL ₁ (not shown), the A pair of fitting protrusions (not shown) for fitting the main body portion with a pair of fitting holes (not shown) of the first arm portion third cylinder 405, and a pair of locks for the fourth lock member A fourth protrusion 469 and a locking fourth protrusion 470 are provided, and a pair of locking third recesses 467 and a locking third recess 468 are provided.

The extending portion includes a pair of locking third protrusions 465 and locking third protrusions 466, an engaging convex portion (not shown), and a sliding portion (not shown).
The fourth locking member 431 includes a pair of locking third recesses 467 and a locking third recess 468 of the third locking member 429 and a pair of locking fourth protrusions 469 and a locking fourth protrusion 470. .

Since the first arm part second cylinder 403 has the same structure as the first base end part 409 of the first arm part first cylinder 401 at the second base end part 413, the description thereof is omitted. Since the first arm portion third cylinder 405 has the same structure as the first arm portion second cylinder 403, the description thereof is omitted. Since the structure of the 4th base end part 421 of the 1st arm part 4th cylinder 407 is the same as that of the 1st base end part 409 of the 1st arm part 1st cylinder 401, explanation is omitted.

The relationship between the third lock member 429, the first arm unit third cylinder 405, and the first arm unit second cylinder 403 is that the second lock member 427, the first arm unit second cylinder 403, Since it is the same as the relationship with the 1 arm part 1st cylinder 401, description is abbreviate | omitted.
The relationship between the fourth lock member 431 and the first arm portion fourth cylinder 407 and the first arm portion third cylinder 405 is that the second lock member 427 and the first arm portion second cylinder 403 are related. And since it is the same as that of the relationship with the 1st arm part 1st cylinder 401, description is abbreviate | omitted.

The first arm unit 5 includes a first arm unit first cylinder 401, a first arm unit second cylinder 403, a first arm unit third cylinder 405, a first arm unit fourth cylinder 407, and a first arm unit. the lock member 425, the second locking member 427, by the third locking member 429 and the fourth locking members 431 has the structure described above, as well as a possible extension to the first arm portion axis AL ₁ direction, for holding the elongated form A locking mechanism at the time of extension and a locking mechanism at the time of contraction that holds the contracted form are provided. Moreover, the 1st arm part 5 can be fixed by arbitrary length.

Next, an example of a procedure for changing the cleaning tool 1 according to the first embodiment from the storage configuration to the cleaning configuration will be described with reference to FIGS.
The cleaning tool 1 in the storage form in which the cleaning body 101 is attached to the cleaning body attaching portion 11 is prepared.
As shown in FIG. 13, the second arm is held with the left hand while holding the holding portion 3 of the first arm portion 5 of the cleaning tool 1 with the right hand and attaching the thumb of the left hand to the switching portion 301 of the rotating portion 7. The second arm part first cylinder 201 of the part 9 is gripped. In addition, you may press the support part (not shown) side of the rotation part 7 with the index finger of the left hand.

Next, as shown in FIG. 14, the switching unit 301 is pushed with the thumb of the left hand to switch the rotating unit 7 from the non-rotatable state to the rotatable state, and the arm angle θ of the rotating unit 7 becomes a desired angle. Rotate to
Next, as shown in FIG. 15, with the left hand, the second arm part first cylinder 201 of the second arm part 9 is moved to the left and the second arm part 9 is extended to a desired length. .
Next, as shown in FIG. 16, while holding the second arm part 9 with the left hand while holding the rotating part 7 with the thumb and forefinger of the left hand, the first hand is raised by raising the left hand and lowering the right hand. The arm part 5 is extended to a desired length, and the cleaning tool 1 is transformed into a cleaning form as shown in FIG.
As described above, the cleaning tool 1 according to the first embodiment can be easily changed from the storage configuration to the cleaning configuration.

The cleaning tool 1 according to the first embodiment can be easily deformed from the cleaning configuration to the storage configuration by performing the deformation procedures shown in FIGS. 13 to 17 in the reverse order.
It should be noted that the procedure for changing from the storage form to the cleaning form and the procedure for changing from the cleaning form to the storage form shown in FIGS. 13 to 17 is merely an example, and limits the configuration, usage, and the like of the cleaning tool of the present disclosure. is not.

In the cleaning tool of the present disclosure, the structure of the second arm portion is not limited to that shown in the first embodiment as long as the second arm portion can be extended and contracted, and a publicly known expansion and contraction structure may be adopted.
By having the 2nd arm part which can extend the above-mentioned cleaning tool, the storage form of a cleaning tool can be made smaller than the cleaning form, and it is excellent in storage nature.
In the cleaning tool of this indication, it is preferred that the 2nd arm part is provided with the lock mechanism at the time of extension holding the extension form. This is from the viewpoint of fixing the second arm part when the second arm part is used in the extended configuration. The extension locking mechanism is not limited to that shown in the first embodiment, and a known one can be adopted.

In the cleaning tool of the present disclosure, the second arm unit may include a lock mechanism at the time of contraction that maintains the contraction form. This is because the second arm portion is not extended when the cleaning tool is suspended and stored. Further, when the cleaning tool of the present disclosure is used downward without extending the second arm portion (for example, when used for removing dust such as a keyboard of a notebook computer), the second arm portion This is from the viewpoint of fixing the length.

In the cleaning tool of the present disclosure, the second arm portion may have a structure that can be fixed at an arbitrary length between the contracted form and the extended form. This is from the viewpoint of deforming the cleaning tool of the present disclosure into an optimal shape in accordance with the place to be cleaned. As a structure that can be fixed at an arbitrary length between the contracted form and the extended form, a known structure can be adopted. For example, the second arm part first cylinder and the second arm part second cylinder A structure for sliding the body is mentioned.

In the cleaning tool of the present disclosure, in an embodiment in which the second arm portion includes at least a second arm portion first cylinder having a hollow portion and a second arm portion second cylinder inserted into the hollow portion, The two-arm part first cylinder can be connected to both the rotating part and the cleaning body mounting part, but the second arm part first cylinder is preferably connected to the cleaning body mounting part. This is from the viewpoint of ease of extension and contraction of the second arm portion.

In the cleaning tool of the present disclosure, the rotating part is not limited to that shown in the first embodiment, and a known rotating part structure such as Patent Document 1, Japanese Patent Application Laid-Open No. 2004-49619, Japanese Patent Application Laid-Open No. 2009-17958, You may employ | adopt the structure as described in Unexamined-Japanese-Patent No. 2009-34338 etc.

In the cleaning tool of the present disclosure, it is preferable that the rotating unit includes a switching unit that switches between a rotatable state and a non-rotatable state of the rotating unit on the rotation axis. This is from the viewpoint of the cleaning form deformability and the storage form deformability of the cleaning tool of the present disclosure.
In the cleaning tool of the present disclosure, it is preferable that the rotation unit includes a first gear unit that rotates along the rotation axis of the rotation unit and a second gear unit that rotates along the rotation axis of the rotation unit. Moreover, it is preferable that a 1st gear part and a 2nd gear part are each provided with the some 1st tooth part and the some 2nd tooth part which mutually mesh | engage. This is because the switching unit is arranged on the rotation axis.

In the cleaning tool of the present disclosure, in the embodiment, the rotating unit includes a first gear unit that rotates along the rotation axis of the rotating unit, and a second gear unit that rotates along the rotation axis of the rotating unit. Preferably, the first gear portion includes a plurality of teeth that taper toward the second gear portion, and the second gear portion includes a plurality of teeth that taper toward the first gear portion. This is from the viewpoint that the first tooth portion and the second tooth portion, and by extension, the first gear portion and the second gear portion are not easily damaged.

In the cleaning tool of the present disclosure, the first arm portion may be unextendable and extendable, and may have a contracted form and an extended form.
In embodiments where the first arm portion is extendable, the first arm portion may be in a contracted configuration, an extended configuration, and any length therebetween, as shown in the first embodiment. It is preferable that can be fixed. This is because the cleaning tool of the present disclosure is deformed into an optimum shape according to the place to be cleaned, and the shape is maintained.
Since the first arm portion can be extended and contracted, the cleaning tool of the present disclosure can make the storage form of the cleaning tool smaller than the cleaning form, and is excellent in storability.

In the cleaning tool of the present disclosure, the structure of the first arm portion is not limited to that shown in the first embodiment, and is described in a known structure, for example, Japanese Patent Application Laid-Open Nos. 2004-49628 and 2010-29557. The structure can be adopted.

In the cleaning tool of the present disclosure, the length from the base end of the cleaning tool to the rotating shaft of the rotating part is referred to as “base end length”, and the length from the rotating shaft of the rotating part to the tip of the cleaning tool is referred to as “tip length”. ”, The preferable relationship between the proximal end length and the distal end length is as follows.
Regarding the tip length, “the tip length including the second arm portion in the contracted configuration” is simply referred to as “the tip length in the contracted configuration”, and “the tip length including the second arm portion in the extended configuration”. Is simply referred to as “tip length in the extended configuration”.
Furthermore, regarding the base end length, “the base end length including the first arm portion that cannot be extended or contracted or the first arm portion that is extendable and contracted” is simply referred to as “base end length in the contracted configuration”. The “base length including the first arm portion in the extendable and extendable form” is simply referred to as “base end length in the extended form”.

The distal end length in the contracted and elongated forms is preferably 0.6 to 2.0 times, more preferably 0.8 to 1.5 times, and even more preferably 1.0 times the proximal length in the contracted form. It is in the range of up to 1.3 times. By doing so, while the cleaning tool in the storage form can be made compact, the length of the cleaning body mounting portion sufficient for mounting the cleaning body (and thus the size of the cleaning body sufficient for cleaning), The stretchability of the second arm part (the difference between the length of the second arm part in the contracted form and the length of the second arm part in the extended form) can be ensured. In addition, by doing so, the cleaning tool is excellent in operability when the cleaning tool of the present disclosure is used with only the second arm portion extended.

In the cleaning tool of the present disclosure, the distal end length in the contracted form and the extended form is preferably 0.1 to 0.7 times, more preferably 0.2 to 0.6 times the proximal end length in the extended form. More preferably, it is in the range of 0.3 to 0.5 times. By doing so, the center of gravity of the cleaning tool does not become closer to the tip, and the user does not feel the cleaning tool heavy. Moreover, the cleaning tool is excellent in operability, and it is possible to easily clean a place to be cleaned that is far from the user and deep.
The tip lengths in the contracted form and the extended form can take values of 150 to 490 mm, 200 to 370 mm, 250 to 330 mm, and the like, for example.

In the cleaning tool of the present disclosure, the cleaning body attaching portion is not particularly limited, and may have a known structure, for example, the structure described in the above-mentioned publication.
In the cleaning tool of the present disclosure, the cleaning body may be any known cleaning body, such as a disposable body or a body that is repeatedly used after washing or the like.

The cleaning tool of the present disclosure has an obstacle between the user of the cleaning tool and the place to be cleaned, and is excellent in the cleanability of the place to be cleaned in situations where the cleaning tool is bent and used. Examples of the place to be cleaned include a high place, a low place, and a narrow place. As a specific example of the place to be cleaned, for example, the space between the ceiling plate, electrical appliances, etc. of electrical appliances, furniture (hereinafter referred to as “electrical appliances”), the ceiling, electrical appliances, etc. Examples include spaces between wall surfaces, electrical appliances, and the like, and floor surfaces.

In addition, the cleaning tool of the present disclosure can be deformed not only according to the place to be cleaned but also according to the user. For example, when a plurality of users at home, for example, adults (male, female), children, etc., are used by users with different heights, the shape is changed to an optimum shape according to the height. be able to.
FIG. 18 shows an example of cleaning the top plate of the air conditioner 501 using the cleaning tool 1 according to the first embodiment as an example.

DESCRIPTION OF SYMBOLS 1 Cleaning tool 3 Gripping part 5 1st arm part 7 Rotating part 9 2nd arm part 11 Cleaning body attachment part 13 Tip 15 Base end 101 Cleaning body 201 2nd arm part 1st cylinder 203 Hollow part 205 2nd arm part 1st Two cylinders 207

Fitting members

209, 210 Fitting recesses 211, 212 Fitting projections 213 Rotating part coupling body 215 Second arm part first base end part 217 Second arm part first front end part 219 Second arm part second base End 221 Second arm portion Second tip portion θ Arm angle θ ₁ Tapered angle θ ₂ Tapered angle AL ₁ First arm portion axis AL ₂ Second arm portion axis RA Rotating shaft

Claims

A first arm portion having a gripping portion, a second arm portion, a rotating portion that connects the first arm portion and the second arm portion and can adjust the arm angle, and a cleaning body that is connected to the second arm portion. A cleaning tool mounting portion for mounting the cleaning tool, and a cleaning tool having a distal end and a proximal end,
The second arm part is extendable;
The said cleaning tool characterized by the above-mentioned.
The cleaning tool according to claim 1, wherein the second arm portion includes a lock mechanism that holds the extended form.
The second arm part includes at least a second arm part first cylinder having a hollow part and a second arm part second cylinder inserted into the hollow part, and the second arm part is a second arm part. The first cylinder and the second arm part can be expanded and contracted by relatively moving the second cylinder, and the second arm part first cylinder is connected to the cleaning body attaching part. Or the cleaning tool of 2.
The cleaning tool according to any one of claims 1 to 3, wherein the rotating unit includes a switching unit that switches between a rotatable state and a non-rotatable state of the rotating unit on a rotation axis thereof.
The rotating part includes a first gear part connected to the first arm part and having the rotating shaft, and a second gear part connected to the second arm part and having the rotating shaft, Each of the first gear portion and the second gear portion includes a plurality of first tooth portions and a plurality of second tooth portions that mesh with each other, and the switching portion pushes the switching portion, thereby the first gear portion. The engagement between the plurality of first tooth portions and the plurality of second tooth portions of the second gear portion is released, and the rotating portion is switched from the non-rotatable state to the rotatable state. The cleaning tool described.
Each of the plurality of first teeth is tapered toward the second gear and / or each of the plurality of second teeth is tapered toward the first gear. When the predetermined force for changing the arm angle is applied to the rotating part, the rotating part includes a plurality of first tooth parts of the first gear part and a plurality of second tooth parts of the second gear part. The cleaning tool according to claim 5, wherein the engagement is shifted.
The first arm portion is extendable and contractible, and the first arm portion includes an extension lock mechanism that holds the extended configuration and a contraction lock mechanism that holds the contracted configuration. Cleaning tool as described in.
The first arm part includes at least a first arm part first cylinder having a hollow part and a first arm second cylinder inserted into the hollow part, and the first arm first cylinder is provided with the base. A first proximal end portion from the end and a first distal end portion from the distal end, wherein the first arm portion second cylinder has a second proximal end portion from the proximal end and a first proximal end portion from the distal end. The first arm portion first cylinder includes a first lock member at a first base end portion, and the first arm portion second cylinder has a second lock portion at a second base end portion. The cleaning tool according to claim 7, further comprising a member, wherein the contraction lock mechanism functions by locking the first lock member and the second lock member.
The second locking member has an extending portion that extends from the second base end portion of the first arm portion second cylindrical body to the outside of the first arm portion second cylindrical body along the axis of the first arm portion. The extending portion includes an engaging convex portion extending in a direction away from the axis of the first arm portion, and the first arm portion first cylinder includes an engaging surface on the inner surface of the first tip portion, The cleaning tool according to claim 8, wherein the extension lock mechanism is manifested by the engagement convex portion engaging the engagement surface.
The cleaning tool according to claim 8 or 9, wherein the second lock member further includes a sliding portion that slides with the inner surface of the first arm portion first cylinder.
When the length from the base end to the rotating shaft of the rotating part is the base end length, and the length from the rotating shaft to the tip of the rotating part is the tip end length, the tip length is in a contracted form. And the distal end length is in the range of 0.1 to 0.7 times the proximal end length in the extended configuration. The cleaning tool according to any one of claims 7 to 10.