Cleaning tool

Abstract

To provide a cleaning tool that enables easy replacement of a disposable cleaning sheet and permits replacement without direct contact with the cleaning sheet.SOLUTION: There is provided a cleaning tool in which a cleaning sheet 9 larger than a bottom surface of a head 3 is detachably attached to the bottom surface of the head 3 provided at a lower end of a handle 2, the cleaning tool comprising: locking means 4 provided on an upper surface of the head 3, the locking means 4 spreading laterally from the head 3 in an open state and being folded onto the head 3 in a closed state; and operating means for opening and closing the locking means 4, wherein a pair of the locking means 4 is provided on left and right sides, and when the locking means 4 is moved from the open state to the closed state by the operating means with the head 3 placed on the cleaning sheet 9, the locking means 4 hooks an overhanging portion 9a of the cleaning sheet 9 protruding from the head 3, moves the overhanging portion 9a onto the head 3, and locks the cleaning sheet 9.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a cleaning tool having a head to which a cleaning sheet is replaceably attached. [Background technology]

[0002] One cleaning tool used for cleaning floors has a disposable cleaning sheet attached to the bottom of the head at the bottom of the handle in a replaceable manner (see, for example, Patent Document 1). Figure 15 shows the head to which the cleaning sheet is attached. Sheet holders 102 are provided at the four corners of the top surface of the head 101. Each sheet holder 102 is made of an elastic plate material and has a notch 103 of a predetermined shape.

[0003] In this cleaning tool, the cleaning sheet 104 is placed against the bottom of the head 101, and then the protruding portion 104a of the cleaning sheet 104 from the head 101 is folded back onto the head 101 and pushed into the notch 103 of the sheet holding part 102, thereby attaching the cleaning sheet 104 to the head 101. The protruding portion 104a of the cleaning sheet 104 is also pulled out from the notch 103 of the sheet holding part 102, thereby removing the cleaning sheet 104 from the head 101. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-29245 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the above-mentioned cleaning tool, it was necessary to manually push in and pull out the protruding portion 104a of the cleaning sheet 104 from each of the four sheet holding portions 102, making the work of replacing the cleaning sheet 104 very cumbersome. Moreover, the replacement work required touching the cleaning sheet 104 and the head 101, making the replacement work unsanitary.

[0006] The present invention has been made to solve such problems, and has an object to provide a cleaning tool that allows easy replacement of the cleaning sheet without directly touching the cleaning sheet. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a cleaning tool in which a cleaning sheet larger than the bottom surface of a head provided at the lower end of a handle can be replaceably attached, and the cleaning tool is equipped with locking means provided on the top surface of the head, which spreads out sideways from the head in the open state and folds over the head in the closed state, and an operating means for opening and closing the locking means, and there are a pair of locking means, one on the left and one on the right.When the locking means is moved from the open state to the closed state by the operating means while the head is placed on the cleaning sheet, the locking means catches the part of the cleaning sheet extending beyond the head and moves it onto the head to lock it in place, and when the cleaning sheet is pulled by friction with the floor surface during cleaning, it bites into the cleaning sheet and locks it more firmly.

[0008] Therefore, when the head with the left and right locking means unfolded is placed on a cleaning sheet spread on the floor, the left and right locking means hook onto the portion of the cleaning sheet that protrudes from the head. When the operating means is operated in this state to close the left and right locking means, the left and right locking means pull the protruding portion of the cleaning sheet toward the head, and then move it onto the head and lock it in place. This attaches the cleaning sheet to the head. Furthermore, when the cleaning tool is used and the cleaning sheet that is locked to the head is pulled by friction with the floor surface, the cleaning sheet bites into the locking means and is more firmly locked in place.

[0009] Furthermore, the cleaning tool of the present invention may be configured so that the engaging means comprises an arm rotatably attached to the top surface of the head, a flap rotatably attached to the arm, a hooking member provided on the bottom surface of the flap, which hooks onto the cleaning sheet and sandwiches it between the flap and the head in the closed state, and a biting member provided between the hooking member and the head, which bites into the cleaning sheet when the cleaning sheet is pulled by friction with the floor surface during cleaning in the closed state.

[0010] Therefore, the arm rotates relative to the head, and the flap rotates relative to the arm, allowing the locking means to be folded. A hooking member for hooking the cleaning sheet is provided on the bottom surface of the flap, so the locking means can be folded with the cleaning sheet hooked. Furthermore, when the cleaning tool is used and the cleaning sheet locked to the head is pulled by friction with the floor surface, the biting member bites into the cleaning sheet, locking it in place even more firmly.

[0011] Furthermore, the operating means of the cleaning tool of the present invention may be configured to include an opening direction operating means for operating the locking means in a direction to open it, a closing direction operating means for operating the locking means in a direction to close it, and a locking means for holding the locking means in a closed state.

[0012] Therefore, the locking means can be opened by the opening direction operating means and closed by the closing direction operating means. By locking the locking means with the locking means while the cleaning sheet is sandwiched between the locking means and the head, the cleaning sheet can be prevented from coming off. [Effects of the Invention]

[0013] According to the present invention, by spreading the cleaning sheet on the floor and then placing it on the floor, the cleaning sheet can be attached to the bottom of the head with one touch without touching the cleaning sheet or the head. Furthermore, the frictional force generated between the floor surface and the cleaning sheet during cleaning can be used to more firmly secure the cleaning sheet, allowing for more thorough cleaning of the floor. [Brief explanation of the drawings]

[0014] [Figure 1] 1A and 1B show an example of an embodiment of a cleaning tool of the present invention, in which (A) is a perspective view in a state where the left and right locking means are open, and (B) is a perspective view in a state where the left and right locking means are closed. [Figure 2] 2A and 2B are enlarged views of the head of the cleaning tool of FIG. 1, in which (A) is a perspective view with the left and right locking means open, and (B) is a perspective view with the left and right locking means closed. [Figure 3] 2A is a cross-sectional view taken along line AA in FIG. 2A, and FIG. 2B is a cross-sectional view taken along line BB in FIG. 2B. [Figure 4] 3A is a bottom view of the state shown in FIG. 3A, and FIG. 3B is a bottom view of the state shown in FIG. 3B. [Figure 5] 1A is a cross-sectional view taken along line VV in FIG. 1A, and FIG. 1B is a cross-sectional view taken along line VV in FIG. 1B. [Figure 6] 1A is a cross-sectional view taken along line VI-VI in FIG. 1A, and FIG. 1B is a cross-sectional view taken along line VI-VI in FIG. 1B. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. 9 is an enlarged view of a portion indicated by circle IX in FIG. 8. [Figure 10] 1A is a side view of the cleaning tool with the left and right locking means open, and FIG. 1B is a side view of the cleaning tool with the left and right locking means closed. [Figure 11] 10(A) is a cross-sectional view taken along line AA in FIG. 10(A), and FIG. 10(B) is a cross-sectional view taken along line BB in FIG. 10(A). [Figure 12] 10(A) is a cross-sectional view taken along line AA in FIG. 10(B), and FIG. 10(B) is a cross-sectional view taken along line BB in FIG. 10(B). [Figure 13] 10 is a conceptual diagram showing how a first connecting member connects a connecting pin and a flap. FIG. [Figure 14] 10 is a conceptual diagram showing how a second connecting member connects a connecting pin and a base end of a lock lever. FIG. [Figure 15] FIG. 1 is a plan view of a head of a conventional cleaning tool. DETAILED DESCRIPTION OF THE INVENTION

[0015] Next, an example of an embodiment of a cleaning tool according to the present invention will be described with reference to the drawings. Figures 1 to 14 show a cleaning tool according to the present invention. Cleaning tool 1 has a head 3 provided at the lower end of a handle 2, and a cleaning sheet 9 larger than the bottom surface of the head 3 is replaceably attached to the bottom surface of the head 3. Cleaning tool 1 is equipped with locking means 4 provided on the top surface of head 3, which spreads out laterally from head 3 in the open state and folds over head 3 in the closed state, and operating means 5 for opening and closing locking means 4.

[0016] The handle 2 is formed of, for example, a pipe, and is held by the user during use. The head 3 comprises a long, narrow rectangular bottom plate 3a and a lid-like member 3b that fits over the bottom plate 3a, leaving an internal space. The inner surface of the lid-like member 3b is provided with a plurality of ribs 3c. A hole 3d is provided in the center of the top surface of the lid-like member 3b, through which a first connecting member 16 and a second connecting member 17 (described later) pass, and a joint 6 for connecting the handle 2 is provided across the hole 3d. In addition, holes 3e are provided on both the left and right sides of the lid-like member 3b, through which the first connecting member 16 can be pulled out.

[0017] A first protrusion 23 and a second protrusion 24 are provided on both the left and right sides of the top surface of the head 3 (FIG. 9). The first protrusion 23 and the second protrusion 24 are formed along the front-to-rear direction of the head 3, with the first protrusion 23 located on the inside and the second protrusion 24 located on the outside. The first protrusion 23 is larger and has a rounded shape than the second protrusion 24, while the second protrusion 24 is smaller and has an elongated, sharp shape than the first protrusion 23. In this embodiment, the first protrusion 23 is integrally molded with the edge of the lid-shaped member 3b, and the second protrusion 24 is integrally molded with the edge of the bottom plate 3a.

[0018] The locking means 4 includes an arm 7 rotatably attached to the top surface of the head 3, a flap 8 rotatably attached to the arm 7, a hooking member 10 attached to the bottom of the flap 8 to hook the cleaning sheet 9 and sandwich it between the flap and the head 3 in the closed state, and a biting member 25 (FIG. 9) attached between the hooking member 10 and the head 3 to bite into the cleaning sheet 9 when the cleaning sheet 9 is pulled by friction with the floor surface during cleaning in the closed state. The flap 8 is substantially rectangular, and the length L1 of a tip 8a protruding to the side of the head 3 is set to be substantially the same as the vertical length L2 of the cleaning sheet 9 (FIG. 3(A)). The locking means 4 are provided on both sides of the joint 6.

[0019] The hooking member 10 is provided on the bottom surface of the tip 8a of the flap 8. The hooking member 10 is composed of a base plate 10a attached to the bottom surface of the flap 8 and a first protrusion 10b, a second protrusion 10c, and a third protrusion 10d provided downward on the base plate 10a, which are integrally molded from, for example, resin. A large number of the first protrusions 10b, the second protrusions 10c, and the third protrusions 10d are provided. In this embodiment, the first protrusions 10b, the second protrusions 10c, and the third protrusions 10d are each arranged in a comb-like pattern. Furthermore, in this embodiment, the first protrusions 10b, the second protrusions 10c, and the third protrusions 10d arranged in a comb-like pattern are separately arranged in the front and rear portions of the flap 8.

[0020] The first protrusion 10b, the second protrusion 10c, and the third protrusion 10d are elastic and catch on the cleaning sheet 9 due to frictional forces generated between them or by getting into the fibers that make up the cleaning sheet 9. Therefore, when the flap 8 moves, the cleaning sheet 9 also moves. When the locking means 4 is in the open state with the left and right flaps 8 spread apart, the distance L3 between the tips 8a of the left and right flaps 8 is set to be approximately the same length as the lateral length L4 of the cleaning sheet 9 (FIG. 3(A)).

[0021] The biting members 25 are provided inside the first protrusions 10b and have, for example, an elongated, sharp protrusion shape. In this embodiment, the biting members 25 are molded integrally with the hooking members 10. That is, the biting members 25 are molded from resin and, like the first protrusions 10b, have elasticity, so they get into the fibers that make up the cleaning sheet 9 or get caught on the cleaning sheet 9 by the frictional force generated between them.

[0022] The operating means 5 includes an opening direction operating means 11 for operating the locking means 4 in the direction of opening it, a closing direction operating means 12 for operating the locking means 4 in the direction of closing it, and a locking means 13 for holding the locking means 4 in the closed state.

[0023] The opening direction operation means 11 comprises a first elastic member and a second elastic member (both not shown). The first elastic member is provided coaxially with a shaft (not shown) that rotatably connects the arm 7 to the head 3, and constantly urges the arm 7 in the opening direction. The second elastic member is provided coaxially with a shaft (not shown) that rotatably connects the flap 8 to the arm 7, and constantly urges the flap 8 in the opening direction. Therefore, the opening direction operation means 11 constantly urges the locking means 4 in the opening direction. The first elastic member and the second elastic member are formed, for example, by torsion springs.

[0024] The closing direction operating means 12 comprises an operating sleeve 18 slidably mounted on the outer peripheral surface of the handle 2, a slider 19 fitted and fixed to the inner peripheral surface of the handle 2 and guided by a pair of left and right guides 26, 26 to move integrally with the operating sleeve 18, and a first connecting member 16 that transmits the movement of the slider 19 to the locking means 4.

[0025] The pair of left and right guides 26, 26 are provided with guide rails 26a, 26a extending along the length of the handle 2, and the slider 19 moves while being guided by the guides 26, 26 by slidably fitting the grooves 19b, 19b of the slider 19 into these guide rails 26a, 26a. The guides 26, 26 are provided within a range that allows the operating sleeve 18 to move between the position shown in Figure 10(A) and the position shown in the same figure (B).

[0026] The slider 19 is provided with an operation button portion 19a that is fitted so as to be able to protrude into a hole 18a provided in the operation sleeve 18, and the operation button portion 19a is constantly biased in a direction that causes it to protrude from the hole 18a by a spring 27 that is provided between the operation sleeve 18 and the position opposite the operation button portion 19a. The operation button portion 19a of the slider 19 is fitted into the hole 18a of the operation sleeve 18, and the slider 19 and the operation sleeve 18 move together.

[0027] When the operation sleeve 18 is slid to the lock position shown in FIGS. 1(B) and 10(B), the slider 19 is disengaged from the guide rails 26a (FIG. 12(A)). Therefore, the slider 19 is pushed by the spring 27 and shifted in a direction that causes the operation button portion 19a to protrude from the hole 18a. In this state, the grooves 19b of the slider 19 are disengaged from the guide rails 26a, and therefore the slider 19 and operation sleeve 18 cannot move along the guides 26a.

[0028] From this state, when the user pushes the operation button portion 19a into the operation sleeve 18, the grooves 19b, 19b of the slider 19 face the guide rails 26a, 26a. This allows the slider 19 and the operation sleeve 18 to slide, and the operation sleeve 18 can be slid to the unlocked position (FIGS. 1(A) and 10(A)).

[0029] A connecting portion 19c that connects the first connecting member 16 and the second connecting member 17 is provided at the bottom of the slider 19.

[0030] The first connecting member 16 is a flexible linear member such as a string or wire that is not easily stretched, and passes through the internal space of the slider 19 and the internal space of the head 3 to connect the connecting pin 19c and the flap 8. That is, one end of the first connecting member 16 is connected to the connecting pin 19c. The other end of the first connecting member 16 is pulled out from the hole 3e in the lid-like member 3b of the head 3 to the outside of the head 3 and connected to the flap 8. Since two locking means 4 are provided, two first connecting members 16 are also provided, and the flaps 8 of the left and right locking means 4 are connected to one connecting pin 19c.

[0031] The locking means 13 is provided within the head 3 and includes a locking lever 22 that locks the flap 8 of the locking means 4, and a second connecting member 17 that transmits the movement of the slider 19 to the locking lever 22. The locking lever 22 is rotatably attached to the bottom plate 3a of the head 3, with its base end 22a positioned near the hole 3e in the cover-shaped member 3b. The locking lever 22 also has a claw 22b at its tip. In this embodiment, two claws 22b are provided. Each claw 22b protrudes outward from the hole 3e in the cover-shaped member 3b and hooks onto a claw portion 8b on the back surface of the flap 8, thereby locking the arm 7 and the flap 8. Since the locking means 4 are provided on the left and right sides of the head 3, the locking lever 22 is also provided on the left and right sides of the head 3. The locking lever 22 is constantly biased by a return spring (not shown) in a direction that hooks the claw 22b onto the claw portion 8b on the flap 8.

[0032] The second connecting member 17 is a flexible, linear member, such as a string or wire, that is not easily stretched or contracted. It passes through the interior spaces of the slider 19, the handle 2, and the head 3 to connect the connecting pin 19c and the lock lever 22. The second connecting member 17 passes over a connecting portion 2e provided on the inner circumferential surface of the handle 2 to connect the connecting pin 19c and the base end 22a of the lock lever 22. The connecting portion 2e is located higher on the handle 2 than the connecting pin 19c. Therefore, when the connecting pin 19c moves downward, the base end 22a of the lock lever 22 is pulled up by the second connecting member 17. When the connecting pin 19c moves upward, the tension of the second connecting member 17 is released, allowing the return spring of the lock lever 22 to swing, i.e., the base end 22a of the lock lever 22 to descend. The second connecting member 17 is not shown in FIGS. 8 to 11.

[0033] Next, the opening and closing operation of the locking means 4 will be described. 1(A) and 10(A), when the operating sleeve 18 of the closing direction operating means 12 is slid to the unlocked position shown in Fig. 1(A) and Fig. 10(A), the second connecting member 17 of the locking means 13 swings the lock lever 22, so that the claw 22b disengages from the claw portion 8b of the flap 8 (unlocking). At the same time, the tension of the first connecting member 16 that had been pulling the flaps 8 of the left and right locking means 4 toward the head 3 is released, so that the locking means 4 is opened by the biasing forces of the first elastic member and second elastic member of the opening direction operating means 11.

[0034] 1(B) and 10(B), the first connecting member 16 pulls the flaps 8 of the left and right locking means 4 toward the head 3, and the left and right locking means 4 are folded. At the same time, the second connecting member 17 loosens, allowing the locking lever 22 to swing, and the locking lever 22 is swung by a return spring (not shown), and the claw 22b locks the claw portion 8b of the flap 8. This locks the left and right locking means 4 in a closed state.

[0035] In this way, by sliding the operating sleeve 18, the locking means 4 can be opened and closed.

[0036] Next, we will explain how to attach the cleaning sheet 9 to the head 3. In the cleaning tool 1 of the present invention, when the locking means 4 is moved from the open state to the closed state by the operating means 5 while the head 3 is placed on the cleaning sheet 9, the locking means 4 catches the portion 9a of the cleaning sheet 9 extending beyond the head 3, moves it onto the head 3 and locks it in place, and when the cleaning sheet 9 is pulled by friction with the floor surface during cleaning, it bites into the cleaning sheet 9, thereby locking it in place more firmly. In other words, the user of the cleaning tool 1 can spread the cleaning sheet 9 on the floor and then attach the cleaning sheet 9 to the bottom of the head 3 without touching the cleaning sheet 9 or the head 3.

[0037] When the operating sleeve 18 of the closing direction operating means 12 is slid to the unlocked position, the second connecting member 17 of the locking means 13 swings the lock lever 22. This disengages the claw 22b from the claw portion 8b of the flap 8 (unlocking), and the opening direction operating means 11 opens the locking means 4.

[0038] In this state, when the cleaning tool 1 is placed on the cleaning sheet 9 spread on the floor, the hooking member 10 provided on the bottom surface of the flap 8 hooks the portion 9a of the cleaning sheet 9 that protrudes laterally from the head 3 (protruding portion). At this time, the hooking member 10 is pressed firmly against the cleaning sheet 9 by the biasing force of the first elastic member and the second elastic member of the opening direction operating means 11. Therefore, the hooking member 10 firmly hooks the cleaning sheet 9.

[0039] In this state, when the user slides the operating sleeve 18 of the closing direction operating means 12 upward, the first connecting member 16 pulls the left and right flaps 8 toward the head 3, and the left and right locking means 4 are folded (closed state). At this time, the left and right flaps 8 are biased by the second elastic member 11b in the opening direction, i.e., toward the floor. Therefore, the left and right flaps 8 sandwich the cleaning sheet 9 between themselves and the floor, slide along the floor, and move toward the head 3. Then, the left and right flaps 8 ride up onto the lid-like member 3b of the head 3 and move. This movement moves the protruding portion 9a of the cleaning sheet 9 onto the head 3. Then, when the left and right locking means 4 are folded, the protruding portion 9a of the cleaning sheet 9 is firmly sandwiched between the hook member 10 and the head 3 (FIG. 9). In other words, the locking means 4 locks the protruding portion 9a of the cleaning sheet 9. This attaches the cleaning sheet 9 to the head 3.

[0040] When the protruding portion 9a of the cleaning sheet 9 is sandwiched between the hooking member 10 and the head 3, the first protrusion 10b and the third protrusion 10d of the hooking member 10 press the protruding portion 9a of the cleaning sheet 9 against the first protrusion 23 of the head 3 from both sides, and the second protrusion 10c presses the protruding portion 9a of the cleaning sheet 9 against the first protrusion 23 from above. In addition, the first protrusion 10b of the hooking member 10 sandwiches the protruding portion 9a of the cleaning sheet 9 between itself and the second protrusion 24 of the head 3. Furthermore, a protruding biting member 25 bends the protruding portion 9a of the cleaning sheet 9 toward the head 3 at a position between the first protrusion 23 and the second protrusion 24. In this way, the cleaning sheet 9 is firmly attached to the head 3.

[0041] When the left and right locking means 4 are closed and the operating sleeve 18 is slid to the locked position, the cleaning sheet 9 is firmly locked by the locking means 4. At the same time, the lock lever 22 locks the claw portion 8b of the flap 8. This locks the locking means 4, and even if the user releases the operating sleeve 18, the left and right locking means 4 will continue to lock the protruding portion 9a of the cleaning sheet 9. In this state, the user can use the cleaning tool 1 to perform cleaning.

[0042] When the cleaning sheet 9 is pulled by friction with the floor surface during cleaning by the user, that is, when the cleaning sheet 9 is pulled in the direction of arrow A in Fig. 9, tension acts on the part of the protruding part 9a of the cleaning sheet 9 between the first protrusion 23 and the second protrusion 24, generating a force that tries to push back upward the biting members 25 that are bending this part. As a result, the biting members 25 bite more firmly into the cleaning sheet 9, and the cleaning sheet 9 is more firmly locked in place. This more reliably prevents the cleaning sheet 9 from slipping during cleaning.

[0043] To replace the cleaning sheet 9 after use, simply lower the operating sleeve 18 to unlock the locking means 4. When the user lowers the operating sleeve 18, the second connecting member 17 swings the lock lever 22, disengaging the claw 22b from the claw portion 8b of the flap 8. This causes the left and right locking means 4 to open due to the biasing force of the opening direction operating means 11, releasing the protruding portion 9a of the cleaning sheet 9, allowing the cleaning sheet 9 to be removed and replaced. For example, if the head 3 is moved over a trash can (not shown) and the operating sleeve 18 is slid to the unlocked position, the used cleaning sheet 9 can be dropped into the trash can and disposed of without touching the used cleaning sheet 9.

[0044] The flap 8 of the locking means 4 opens in the direction in which the biting member 25 is pulled out from the cleaning sheet 9, so that the cleaning sheet 9 is released smoothly.

[0045] In this way, with the cleaning tool 1 of the present invention, the cleaning sheet 9 can be replaced without touching the cleaning sheet 9 or the head 3. This makes replacing the cleaning sheet 9 extremely easy and hygienic. Furthermore, the cleaning sheet 9 can be more firmly held in place by utilizing the frictional force generated between the floor surface and the cleaning sheet 9 during cleaning, so the cleaning sheet 9 will not slip or fall off during use, allowing for more thorough cleaning of the floor surface.

[0046] The above-described embodiment is one example of a preferred mode for carrying out the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the spirit of the present invention. [Industrial Applicability]

[0047] The present invention can be used in a cleaning tool in which a disposable cleaning sheet is attached to the head at the lower end of the handle. [Explanation of symbols]

[0048] 1 cleaning tools 2 patterns 3 heads 4 Locking means 5 Operating means 7 Arm 8 Flap 9 Cleaning sheets 9a The part of the cleaning sheet that extends beyond the head 10 Hooking member 11 Opening direction operation means 12 Close direction operation means 13 Locking means 25 Biting member

Claims

1. A cleaning tool in which a cleaning sheet larger than the bottom surface of a head provided at the lower end of a handle is replaceably attached to the bottom surface of the head, a locking means provided on the top surface of the head, the locking means extending laterally from the head in an open state and folding over the head in a closed state; and an operating means for opening and closing the locking means, The locking means is provided in a pair on the left and right sides, When the locking means is moved from the open state to the closed state by the operating means with the head placed on the cleaning sheet, the locking means catches the part of the cleaning sheet that protrudes from the head, moves it onto the head and locks it in place, and when the cleaning sheet is pulled by friction with the floor surface during cleaning, it bites into the cleaning sheet and locks it in place more firmly. A cleaning tool characterized by:

2. The locking means is an arm rotatably attached to the top surface of the head; a flap pivotally attached to the arm; a hook member provided on a bottom surface of the flap, for hooking the cleaning sheet and sandwiching it between the flap and the head in the closed state; a biting member that is provided between the hook member and the head and that bites into the cleaning sheet when the cleaning sheet is pulled by friction with the floor surface during cleaning in the closed state; 2. The cleaning tool according to claim 1, further comprising:

3. 3. The cleaning tool according to claim 1, wherein the operating means comprises an opening direction operating means for operating the locking means in a direction to open it, a closing direction operating means for operating the locking means in a direction to close it, and a locking means for holding the locking means in a closed state.

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