JP7336290B2 - cleaning tool - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning tool equipped with a cleaning cloth for wiping off dust from a surface to be cleaned.

Patent Literature 1 discloses a cleaning tool that is connected at the upper central portion of the head portion and that the handle can be used in any direction of 360 degrees in a plan view.

By using such a cleaning tool that can rotate at any angle, it is possible to insert the head part in a place where the height is restricted such as under a desk or in a narrow gap between furniture and a wall. Furthermore, the head portion can be brought into contact with the surface to be cleaned, such as a wall surface or a ceiling, so that cleaning can be performed at various locations.

JP 2016-112734 A

However, with this type of cleaning tool, there is a problem that the head part may come off from the handle if the head part is used with force or if the head part is used in an unreasonable direction.

Once the handle part is detached from the head part, it often becomes easy to detach even if it is attached again. Moreover, if the head and the handle are connected with a structure that does not cause deformation so that the head does not come off from the handle, there is also the problem that the connection is difficult during manufacturing.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-described problems and to provide a cleaning tool that is easy to manufacture and the handle is difficult to come off from the head.

A cleaning tool according to the present invention for achieving the above object is a cleaning tool comprising a rod-shaped handle, a rectangular head to which a cleaning cloth is attached, and a joint connecting the handle and the head. The surface of the head portion has a pair of upright pieces with a first shaft hole portion or a first shaft portion inside, and the joint portion includes a rotatable portion that can be integrated with a lock. The rotating portion is erected from both ends of the bottom plate portion and is supported outwardly by the first shaft hole portion or the first shaft portion of the standing piece. a pair of plate portions provided with one shaft portion or a first shaft hole portion; and a protrusion provided between the pair of plate portions and provided with a first through hole; has a hole into which the protrusion enters on the lower back surface, a second through hole communicating with the first through hole , and a covering portion provided with a pair of wall portions on both lateral sides , When the rotating portion, the locking portion, and the engaging portion are integrated, the first shaft portion of the rotating portion is inserted into the first shaft hole portion of the standing piece. , wherein the wall portion is inserted between the protrusion and the plate portion .

According to the cleaning tool of the present invention, when attaching the joint portion to the head portion, the rotating portion can be easily attached to the head portion by utilizing the flexibility of the plate portion of the rotating portion. It is possible. After the rotating portion is attached to the head portion, the flexibility of the plate portion is locked by the locking portion, and the rotating portion, the locking portion, and the engaging portion are integrated. Also, the joint portion is not separated from the head portion.

It is a perspective view of the cleaning tool of an Example. It is an exploded perspective view of a joint part etc. It is a sectional view of a head part and a joint part. It is a sectional view of a head part and a joint part. 4 is a cross-sectional view of the sheet holding portion; FIG. FIG. 4 is an explanatory diagram of a sheet holding portion holding a cleaning sheet;

The present invention will be described in detail based on the illustrated embodiments.
FIG. 1 is a perspective view of a cleaning tool according to an embodiment, and FIG. 2 is an exploded perspective view of a state in which a joint portion and the like are disassembled. 3 is a cross-sectional view of the head portion and joint portion between AA parallel to the short direction of the head portion shown in FIG. 1, and FIG. 4 is a cross-sectional view of the head portion between BB parallel to the longitudinal direction of the head portion. and a joint portion, and FIG. 5 is a sectional view of the sheet holding portion between CC parallel to the width direction of the head portion.

The cleaning tool 1 is composed of a rod-shaped handle 2, a head 3 to which a cleaning cloth including a cleaning sheet S made of non-woven fabric or a cleaning cloth is attached, and a joint 4 connecting the handle 2 and the head 3. . The handle portion 2 is rotatable in any direction of approximately 360 degrees in plan view with respect to the head portion 3 via the joint portion 4 . For convenience of explanation, the longitudinal direction of the head portion 3 is referred to as the X direction, and the lateral direction thereof as the Y direction, as shown in FIG.

The handle portion 2 has a length of about 1.2 m, for example, and is made of a lightweight metal such as aluminum or a hard synthetic resin. A grip portion 2b made of a non-slip material such as rubber is attached to the upper end of the portion 2a. A cylindrical portion 2c into which the joint portion 4 is inserted is formed at the lower end of the handle base portion 2a.

The head portion 3 is, for example, a substantially rectangular body having a width of 25 cm in the X direction, a length of 8 cm in the Y direction, and a height of 3 cm. The head portion 3 includes a rectangular substrate portion 3a made of a hard synthetic resin material, and a flexible and elastic material such as foamed polyethylene, foamed EVA, or urethane resin adhered so as to cover the bottom surface of the substrate portion 3a. and a cleaning portion 3b made of a synthetic resin material. As for the sizes of the handle portion 2 and the head portion 3, appropriate sizes can be adopted according to the cleaning place to be used.

A connecting portion 3c for connecting to the joint portion 4 is provided at the upper central portion of the substrate portion 3a. is composed of an upright piece 3d. A pair of first shaft holes 3e recessed in the X direction are formed on the inner side surfaces of these upright pieces 3d so as to face each other.

A connecting portion 3c for connecting to the joint portion 4 is provided at the upper central portion of the substrate portion 3a. is composed of an upright piece 3d. A pair of first shaft holes 3e recessed in the X direction are formed on the inner side surfaces of these upright pieces 3d so as to face each other. A guide groove 3f into which a first shaft portion 5c of the rotating portion 5 (to be described later) is inserted is formed on the inner surface between the top portion of the upright piece 3d and the first shaft hole portion 3e.

A joint portion 4 made up of a plurality of members is interposed between the connecting portion 3c and the handle portion 2 to connect the handle portion 2 to the head portion 3 and rotate the handle portion 2 in an arbitrary direction. The joint portion 4 is composed of a rotating portion 5, a locking portion 6, and an engaging portion 7 each made of a hard synthetic resin material or the like in order from the bottom. and an inserting member 8 which is a material.

The rotating portion 5 is rotatably connected to the first shaft hole portion 3e of the connecting portion 3c, the locking portion 6 is fitted onto the rotating portion 5, and the engaging portion 7 is rotated onto the locking portion 6. A handle 2 is connected to the upper end thereof.

In the rotating portion 5, a pair of plate portions 5b are erected on both ends in the X direction of a bottom plate portion 5a having an arc-shaped bottom surface. A cylindrical first shaft portion 5c protrudes therefrom. A projection 5e having a first through hole 5d penetrating in the Y direction is provided on the bottom plate portion 5a between the plate portions 5b.

The lock portion 6 has a hole portion 6a formed in the lower rear surface thereof, into which the protrusion 5e of the rotating portion 5 is inserted. The locking portion 6 is mounted on the rotating portion 5, has a covering portion 6b on the upper portion, and has a pair of wall portions 6c formed on both sides of the covering portion 6b in the X direction. The wall portion 6 c forms a groove from the outside of the lock portion 6 , and is pushed between the protrusion 5 e of the rotating portion 5 and the plate portion 5 b to connect the lock portion 6 with the rotating portion 5 . be done.

A pair of second shaft portions 6d protrude from both sides of the covering portion 6b, that is, in the Y direction. A second through hole 6e communicating with 5d is formed.

The engaging portion 7 is provided with an upper end portion 7a to be inserted into the handle portion 2 and a pair of flat plate-like arm portions 7b suspended downward from both sides in an inverted U shape. A pair of second shaft holes 7c into which the second shaft portions 6d of the lock portion 6 are inserted are provided facing each other on the inner side surfaces in the Y direction of the lower ends of these arm portions 7b. Further, at the center of the second shaft hole portion 7c, a third through hole 7e is provided which communicates with the first through hole 5d and the second through hole 6e, and through which the bolt as the inserting member 8 is inserted. The third through-hole 7e is formed with an internal thread that engages with the external thread at the tip of the bolt, which is the insertion member 8. As shown in FIG.

Holding portions 9 for holding cleaning cloths are arranged at the four corners of the surface of the substrate portion 3a. The upper portion of the holding portion 9 is a trapezoidal portion 9a formed on the substrate portion 3a, and the trapezoidal portion 9a has an empty box-like space portion 9b extending downward. A substantially rectangular opening 9c is formed in the upper surface of the cavity 9b, that is, the upper surface of the trapezoidal portion 9a, and a substantially semicircular cutout 9d is provided outside a part of the opening 9c in the Y direction. It is

A plate-shaped cover portion 9e having substantially the same shape as the opening portion 9c is arranged in the opening portion 9c so as to close the opening portion 9c, and a push-in portion 9f is provided at a position corresponding to the cut portion 9d. It is formed integrally with the lid portion 9e so as to be much lower than the lid portion 9e.

Further, as shown in the perspective view of FIG. 2, side plate portions 9g are bent into L-shapes on both sides of the lid portion 9e, and projections 9h are formed on the outsides of these side plate portions 9g. When the lid portion 9e is attached to the opening portion 9c, the protrusions 9h of the side plate portions 9g provided on both sides of the lid portion 9e are pushed into the groove portions 9i provided vertically on both side walls of the gap portion 9b. is fitted into a recess 9j provided at the lower end of the groove 9i. Note that the protrusion 9h and the recess 9j may be reversely arranged with respect to the lid portion 9e and the gap portion 9b.

At the lower end of the side wall of the cavity 9b, there is provided a protruding part 9k which protrudes upward from the bottom of the cavity 9b and whose upper end is recessed in an arc shape. While the arc-shaped lower end of the side plate portion 9g abuts against the upper end of the protruding portion 9k sandwiching the groove portion 9i, the lid portion 9e can rotate around the projection 9h pivotally supported by the recessed portion 9j. there is

A spring portion 9m made of, for example, a coil spring is arranged between the rear surface of the lid portion 9e and the pedestal 9l at the bottom of the space portion 9b, and biases the lid portion 9e upward. Therefore, the spring portion 9m always has an urging force in the direction in which the lid portion 9e closes the opening portion 9c.

Further, a plate-like blocking portion 9n is provided at the rear portion of the lid portion 9e. When the lid portion 9e blocks the opening portion 9c, the blocking portion 9n contacts the rear wall of the gap portion 9b, It serves to prevent the portion 9e from rotating upward from the opening portion 9c. Alternatively, instead of providing the plate-shaped stopping portion 9n, the rear side of the lid portion 9e may be used as the stopping portion 9n to come into contact with the rear wall of the gap portion 9b so as to stop the rotation of the lid portion 9e. good.

Further, a plurality of small projections are provided on the back surface of the upper surface plate 9o surrounding the substantially semicircular cutout 9d to prevent the cleaning sheet S from slipping. 9p is formed.

When the push-in portion 9f of the lid portion 9e is pushed inward with a finger, as shown on the left side of FIG. It rotates downward to the center and sinks. When the finger is released from the push-in portion 9f, the lid portion 9e is lifted by the spring portion 9m. It does not protrude above 9c.

In order to attach the joint portion 4 to the head portion 3, the pair of first shaft portions 5c of the rotating portion 5 are inserted into the pair of first shaft holes 3e of the upright pieces 3d of the head portion 3. , the rotating portion 5 is mounted so as to rotate in the Y direction around the X direction. In this case, since the first shaft portion 5c is provided on the outside of the plate portion 5b having flexibility toward the inside, the first shaft portion 5c is inserted into the guide groove 3f of the upright piece 3d. while pressing.

The first shaft portion 5c and the guide groove 3f are in contact with each other, and the first shaft portion 5c is inserted into the first shaft hole portion 3e while the plate portion 5b narrows inward along the guide groove 3f. The first shaft portion 5c is rotatably supported in the first shaft hole portion 3e. In this embodiment, the plate portion 5b of the rotating portion 5 is provided with the first shaft portion 5b, and the upright piece 3d of the head portion 3 is provided with the first shaft hole portion 3e. 5b may be provided with a first shaft hole portion, and the standing piece 3d may be provided with a first shaft portion.

Next, the locking portion 6 is placed on the rotating portion 5, the protrusion 5e of the rotating portion 5 is inserted into the hole portion 6a of the locking portion 6, and the protrusion 5e of the rotating portion 5 and the plate portion 5b are engaged. The lock portion 6 is attached to the rotating portion 5 by pushing the wall portion 6c of the lock portion 6 between them. By inserting the wall portion 6c between the projecting portion 5e and the plate portion 5b, the plate portion 5b is in a locked state in which flexibility with respect to the inside of the plate portion 5b is lost. This prevents the first shaft portion 5c from coming off the inside of the hole portion 3e.

Subsequently, the second shaft portion 6d outside the covering portion 6b of the locking portion 6 is inserted into the second shaft hole portion 7c inside the arm portion 7b of the engaging portion 7 and pivotally supported. , the engaging portion 7 rotates to the locking portion 6 in the X direction around the Y direction. In the present embodiment, the cover portion 6b of the lock portion 6 is provided with the second shaft portion 6d, and the arm portion 7b of the engagement portion 7 is provided with the second shaft hole portion 7c. A second shaft hole may be provided and the arm portion 7b may be provided with the second shaft portion.

Finally, the bolt as the inserting member 8 is inserted through the first through hole 5d of the rotating portion 5, the second through hole 6e of the locking portion 6, and the third through hole 7e of the engaging portion to is screwed into the inner thread of the third through hole 7e of the engaging portion to fix the bolt. By fixing with the inserting member 8, the rotating portion 5, the locking portion 6, and the engaging portion 7 are integrated.

When the joint portion 4 is assembled, the handle portion 2 can be rotated in an arbitrary angle range in the Y direction with respect to the head portion 3 by the first shaft portion 5c of the rotating portion 5. 2 is rotated in the X direction by the shaft portion 6d. That is, the handle 2 can be laid down and raised in the front-rear direction and the left-right direction, that is, in any direction and at any angle. Therefore, it is possible to insert the head part 3 into a narrow space such as a floor surface and clean every corner with the cleaning sheet.

When using the cleaning tool 1, as shown in FIG. 6, it is possible to attach a commercially available cleaning sheet S made of nonwoven fabric having a width of 30 cm, a length of 20 cm, and a thickness of 0.5 mm to the head portion 3, for example. In the embodiment, the cleaning sheet S described above is used as the cleaning cloth to be attached.

In order to attach the cleaning sheet S, one edge portion of the substrate portion 3a is pushed into the holding portion 9 on one side of the substrate portion 3a so as to cover the lower surface of the cleaning portion 3b. is pushed into the holding portion 9 on the other side of the substrate portion 3a, the cleaning sheet S can be fixed to the substrate portion 3a.

That is, the cleaning sheet S is placed on the holding portion 9, and the push-in portion 9f of the cover portion 9e is pushed against the spring portion 9m together with the cleaning sheet S by a finger to push the cleaning sheet S into the space portion 9b. The cleaning sheet S is sandwiched between the gap 9e and the opening 9c by the biasing force of the spring portion 9m. At this time, a frictional force is applied to the cleaning sheet S by the small projections 9p provided on the back surface of the opening 9c, making it even more difficult to remove.

Dust adheres to the cleaning sheet S by holding the handle 2 of the cleaning tool 1 and sliding the head 3 on a floor surface, a wall surface, or the like. When sufficient dust has adhered to the cleaning sheet S, the cleaning sheet S is removed from the holding portion 9 by pressing the pushing portion 9f of the lid portion 9e with a finger. If the back surface of the removed cleaning sheet S is still unused, it can be turned upside down and attached to the holding portion 9 again for use. After sufficient dust has adhered to both sides of the cleaning sheet S, the cleaning sheet S is removed and discarded, and a new cleaning sheet S is attached to the head part 3. - 特許庁

According to the cleaning tool 1 of the present invention, when the joint portion 4 is attached to the head portion 3, the flexibility of the plate portion 5b of the rotating portion 5 is used to rotate the first shaft portion 5c. By inserting it into the first shaft hole portion 3e, it is possible to easily attach the rotating portion 5 to the head portion 3. As shown in FIG. After the rotating portion 5 is attached to the head portion 3, the flexibility of the plate portion 5b is locked by the locking portion 6, and the rotating portion 5, the locking portion 6, and the engaging portion 7 are integrated. , even if an impact or the like is applied to the joint portion 4 or the head portion 3, the joint portion 4 will not separate from the head portion 3.

When the handle 2 or the head 3 is damaged and needs to be replaced, the bolt 8 is pulled out from the joint 4 and disassembled by reversing the assembly procedure to unlock the rotating part 5. The rotating portion 5 can be easily separated from the head portion 3 . The damaged parts are replaced, and the rotating portion 5, the locking portion 6, and the engaging portion 7 are attached to the head portion 3 again.

REFERENCE SIGNS LIST 1 cleaning tool 2 handle 3 head 3d upright piece 3e first shaft hole 3f guide groove 4 joint 5 rotating portion 5a bottom plate 5b plate 5c first shaft 5d first through hole 5e projection Part 6 Locking part 6b Covering part 6c Wall part 6d Second shaft part 6e Second through hole 7 Engaging part 7a Upper end part 7b Arm part 7c Second shaft hole part 7e Third through hole 8 Bolt

Claims (5)

A cleaning tool comprising a rod-shaped handle, a rectangular head to which a cleaning cloth is attached, and a joint connecting the handle and the head,
a pair of standing pieces having a first shaft hole or a first shaft on the surface of the head,
The joint portion is composed of a rotating portion, a locking portion, and an engaging portion that can be integrated,
The rotating portion is erected from both ends of the bottom plate portion, and has a first shaft portion or a first shaft hole pivotally supported by the first shaft hole portion or the first shaft portion of the standing piece on the outside. a pair of plate portions provided with a portion, and a protrusion disposed between the pair of plate portions and provided with a first through hole,
The locking portion has a hole on the lower rear surface into which the protrusion enters, a second through hole communicating with the first through hole , and a covering portion provided with a pair of walls on both lateral sides. death,
When the rotating portion, the locking portion, and the engaging portion are integrated, the first shaft portion of the rotating portion is inserted into the first shaft hole portion of the standing piece. and wherein the wall portion is inserted between the protrusion and the plate portion .
2. The cleaning tool according to claim 1, wherein the engaging portion connecting the upper end to the handle portion has a pair of arm portions having a third through hole at the lower end. 3. A cleaning tool according to claim 2, wherein said arm portion has an inverted U shape facing downward. a second shaft portion or a second shaft hole portion provided with the second through hole at the center on the outer side of the cover portion of the lock portion;
a second shaft hole portion or a second shaft portion communicating with the third through hole is provided inside the arm portion of the engaging portion;
The second shaft portion or the second shaft hole portion of the covering portion is pivotally supported by the second shaft hole portion or the second shaft portion of the arm portion. Or the cleaner according to claim 3. 5. The rotating portion, the locking portion, and the engaging portion are integrated by inserting an inserting member through the first to third through holes and fixing them. 1. The cleaning tool according to item 1.

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